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Black silicon (BSi) fabrication via surface texturization of Si-wafer in recent times has become an attractive concept regarding photon trapping and improved light absorption properties for photovoltaic applications. In this study, surface texturization has been conducted on mono-crystalline Si(100) wafer using a wet chemical anisotropic etching process with IPA:KOH solution to form micro-pyramidal surface structures. Moreover, the optimized properties of the fabricated BSi wafers are used for numerical simulation using PC1D software to analyze the performance of the solar cell and establish the correlation among relevant parameters. Effects such as doping concentration, texturization, passivation, and anti-reflection coating of BSi on the solar cell performance have numerically been investigated. Results show that textured surface obtained from the wet chemical anisotropic etching process has successfully reduced the reflectance of the BSi wafer and surpassed the solar cell efficiency by 2%, which is mainly attributed to the optical confinement of the textured pyramids on the surface with a height of 1–2 μm and angles of 70 degrees. Furthermore, the doping concentration of the p-type wafer and n-type emitter were optimized to be 1 × 1016 cm−3 and 1 × 1018 cm−3, respectively. In the case of device optimization, the SiO2 passivation layer with a refractive index of 1.48 and the Si3N4 ARC layer with a refractive index of 2.015 has been identified as the best combination for the solar cell performance. These optimized parameters eventually result in 23.14% conversion efficiency from numerical simulation for solar cells that use black silicon wafers as fabricated in this study.
Yasir Arafat; Mohammad Islam; Ahmad Mahmood; Fairuz Abdullah; Tiong Kiong; Nowshad Amin. Study of Black Silicon Wafer through Wet Chemical Etching for Parametric Optimization in Enhancing Solar Cell Performance by PC1D Numerical Simulation. Crystals 2021, 11, 881 .
AMA StyleYasir Arafat, Mohammad Islam, Ahmad Mahmood, Fairuz Abdullah, Tiong Kiong, Nowshad Amin. Study of Black Silicon Wafer through Wet Chemical Etching for Parametric Optimization in Enhancing Solar Cell Performance by PC1D Numerical Simulation. Crystals. 2021; 11 (8):881.
Chicago/Turabian StyleYasir Arafat; Mohammad Islam; Ahmad Mahmood; Fairuz Abdullah; Tiong Kiong; Nowshad Amin. 2021. "Study of Black Silicon Wafer through Wet Chemical Etching for Parametric Optimization in Enhancing Solar Cell Performance by PC1D Numerical Simulation." Crystals 11, no. 8: 881.
Tungsten disulfide (WS2) thin films were deposited on soda-lime glass (SLG) substrates using radio frequency (RF) magnetron sputtering at different Ar flow rates (3 to 7 sccm). The effect of Ar flow rates on the structural, morphology, and electrical properties of the WS2 thin films was investigated thoroughly. Structural analysis exhibited that all the as-grown films showed the highest peak at (101) plane corresponds to rhombohedral phase. The crystalline size of the film ranged from 11.2 to 35.6 nm, while dislocation density ranged from 7.8 × 1014 to 26.29 × 1015 lines/m2. All these findings indicate that as-grown WS2 films are induced with various degrees of defects, which were visible in the FESEM images. FESEM images also identified the distorted crystallographic structure for all the films except the film deposited at 5 sccm of Ar gas flow rate. EDX analysis found that all the films were having a sulfur deficit and suggested that WS2 thin film bears edge defects in its structure. Further, electrical analysis confirms that tailoring of structural defects in WS2 thin film can be possible by the varying Ar gas flow rates. All these findings articulate that Ar gas flow rate is one of the important process parameters in RF magnetron sputtering that could affect the morphology, electrical properties, and structural properties of WS2 thin film. Finally, the simulation study validates the experimental results and encourages the use of WS2 as a buffer layer of CdTe-based solar cells.
Akhtaruzzaman; Shahiduzzaman; Nowshad Amin; Ghulam Muhammad; Mohammad Islam; Khan Rafiq; Kamaruzzaman Sopian. Impact of Ar Flow Rates on Micro-Structural Properties of WS2 Thin Film by RF Magnetron Sputtering. Nanomaterials 2021, 11, 1635 .
AMA StyleAkhtaruzzaman, Shahiduzzaman, Nowshad Amin, Ghulam Muhammad, Mohammad Islam, Khan Rafiq, Kamaruzzaman Sopian. Impact of Ar Flow Rates on Micro-Structural Properties of WS2 Thin Film by RF Magnetron Sputtering. Nanomaterials. 2021; 11 (7):1635.
Chicago/Turabian StyleAkhtaruzzaman; Shahiduzzaman; Nowshad Amin; Ghulam Muhammad; Mohammad Islam; Khan Rafiq; Kamaruzzaman Sopian. 2021. "Impact of Ar Flow Rates on Micro-Structural Properties of WS2 Thin Film by RF Magnetron Sputtering." Nanomaterials 11, no. 7: 1635.
The reliability of photovoltaic (PV) modules operating under various weather conditions attracts the manufacturer’s concern since several studies reveal a degradation rate higher than 0.8% per year for the silicon-based technology and reached up to 2.76% per year in a harsh climate. The lifetime of the PV modules is decreased because of numerous degradation modes. Electromigration and delamination are two failure modes that play a significant role in PV modules’ output power losses. The correlations of these two phenomena are not sufficiently explained and understood like other failures such as corrosion and potential-induced degradation. Therefore, in this review, we attempt to elaborate on the correlation and the influence of delamination and electromigration on PV module components such as metallization and organic materials to ensure the reliability of the PV modules. Moreover, the effects, causes, and the sites that tend to face these failures, particularly the silicon solar cells, are explained in detail. Elsewhere, the factors of aging vary as the temperature and humidity change from one country to another. Hence, accelerated tests and the standards used to perform the aging test for PV modules have been covered in this review.
Abdulwahab Hasan; Ammar Ahmed Alkahtani; Seyed Shahahmadi; Mohammad Nur E. Alam; Mohammad Islam; Nowshad Amin. Delamination-and Electromigration-Related Failures in Solar Panels—A Review. Sustainability 2021, 13, 6882 .
AMA StyleAbdulwahab Hasan, Ammar Ahmed Alkahtani, Seyed Shahahmadi, Mohammad Nur E. Alam, Mohammad Islam, Nowshad Amin. Delamination-and Electromigration-Related Failures in Solar Panels—A Review. Sustainability. 2021; 13 (12):6882.
Chicago/Turabian StyleAbdulwahab Hasan; Ammar Ahmed Alkahtani; Seyed Shahahmadi; Mohammad Nur E. Alam; Mohammad Islam; Nowshad Amin. 2021. "Delamination-and Electromigration-Related Failures in Solar Panels—A Review." Sustainability 13, no. 12: 6882.
The performance of photovoltaic (PV) solar cells is influenced by solar irradiance as well as temperature. Particularly, the average photon energy of the solar spectrum is different for low and high light intensity, which influences the photocurrent generation by the PV cells. Even if the irradiance level and the operating temperature remain constant, the efficiency will still depend on the technological parameters of the PV cell, which in turn depends on the used PV material’s absorption quality and the spectral responsivity and cell structure. This study is devoted to the review of different commercially available technologies of PV cells include crystalline silicon (c-Si), polycrystalline silicon (pc-Si), cadmium telluride (CdTe), and copper indium gallium selenide (CIGS). We tried to correlate the spectral response or the photocurrent of different PV cells with the variations of the solar spectrum, environmental conditions, and the material properties and construction of PV cells.
Mohammad Aminul Islam; Nabilah M. Kassim; Ammar Ahmed Alkahtani; Nowshad Amin. Assessing the Impact of Spectral Irradiance on the Performance of Different Photovoltaic Technologies. Solar Radiation - Measurements, Modeling and Forecasting for Photovoltaic Solar Energy Applications [Working Title] 2021, 1 .
AMA StyleMohammad Aminul Islam, Nabilah M. Kassim, Ammar Ahmed Alkahtani, Nowshad Amin. Assessing the Impact of Spectral Irradiance on the Performance of Different Photovoltaic Technologies. Solar Radiation - Measurements, Modeling and Forecasting for Photovoltaic Solar Energy Applications [Working Title]. 2021; ():1.
Chicago/Turabian StyleMohammad Aminul Islam; Nabilah M. Kassim; Ammar Ahmed Alkahtani; Nowshad Amin. 2021. "Assessing the Impact of Spectral Irradiance on the Performance of Different Photovoltaic Technologies." Solar Radiation - Measurements, Modeling and Forecasting for Photovoltaic Solar Energy Applications [Working Title] , no. : 1.
Recent achievements, based on lead (Pb) halide perovskites, have prompted comprehensive research on low-cost photovoltaics, in order to avoid the major challenges that arise in this respect: Stability and toxicity. In this study, device modelling of lead (Pb)-free perovskite solar cells has been carried out considering methyl ammonium tin bromide (CH3NH3SnBr3) as perovskite absorber layer. The perovskite structure has been justified theoretically by Goldschmidt tolerance factor and the octahedral factor. Numerical modelling tools were used to investigate the effects of amphoteric defect and interface defect states on the photovoltaic parameters of CH3NH3SnBr3-based perovskite solar cell. The study identifies the density of defect tolerance in the absorber layer, and that both the interfaces are 1015 cm−3, and 1014 cm−3, respectively. Furthermore, the simulation evaluates the influences of metal work function, uniform donor density in the electron transport layer and the impact of series resistance on the photovoltaic parameters of proposed n-TiO2/i-CH3NH3SnBr3/p-NiO solar cell. Considering all the optimization parameters, CH3NH3SnBr3-based perovskite solar cell exhibits the highest efficiency of 21.66% with the Voc of 0.80 V, Jsc of 31.88 mA/cm2 and Fill Factor of 84.89%. These results divulge the development of environmentally friendly methyl ammonium tin bromide perovskite solar cell.
Samiul Islam; K. Sobayel; Ammar Al-Kahtani; M. Islam; Ghulam Muhammad; N. Amin; Shahiduzzaman; Akhtaruzzaman. Defect Study and Modelling of SnX3-Based Perovskite Solar Cells with SCAPS-1D. Nanomaterials 2021, 11, 1218 .
AMA StyleSamiul Islam, K. Sobayel, Ammar Al-Kahtani, M. Islam, Ghulam Muhammad, N. Amin, Shahiduzzaman, Akhtaruzzaman. Defect Study and Modelling of SnX3-Based Perovskite Solar Cells with SCAPS-1D. Nanomaterials. 2021; 11 (5):1218.
Chicago/Turabian StyleSamiul Islam; K. Sobayel; Ammar Al-Kahtani; M. Islam; Ghulam Muhammad; N. Amin; Shahiduzzaman; Akhtaruzzaman. 2021. "Defect Study and Modelling of SnX3-Based Perovskite Solar Cells with SCAPS-1D." Nanomaterials 11, no. 5: 1218.
Copper oxide (CuxO) films are considered to be an attractive hole-transporting material (HTM) in the inverted planar heterojunction perovskite solar cells due to their unique optoelectronic properties, including intrinsic p-type conductivity, high mobility, low-thermal emittance, and energy band level matching with the perovskite (PS) material. In this study, the potential of reactive sputtered CuxO thin films with a thickness of around 100 nm has been extensively investigated as a promising HTM for effective and stable perovskite solar cells. The as-deposited and annealed films have been characterized by using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Photoluminescence (PL), UV-Vis spectroscopy, and Hall-effect measurement techniques. The significant change in structural and optoelectronic properties has been observed as an impact of the thermal annealing process. The phase conversion from Cu2O to CuO, including grain size increment, was observed upon thermal annealing. The transmittance and optical bandgap were found to vary with the films’ crystallographic transformation. The predominant p-type conductivity and optimum annealing time for higher mobility have been confirmed from the Hall measurement. Films’ optoelectrical properties were implemented in the complete perovskite solar cell for numerical analysis. The simulation results show that a 40 min annealed CuxO film yields the highest efficiency of 22.56% with a maximum open-circuit voltage of 1.06 V.
Mohammad Islam; Yasmin Wahab; Mayeen Khandaker; Abdullah Alsubaie; Abdulraheem Almalki; David Bradley; Nowshad Amin. High Mobility Reactive Sputtered CuxO Thin Film for Highly Efficient and Stable Perovskite Solar Cells. Crystals 2021, 11, 389 .
AMA StyleMohammad Islam, Yasmin Wahab, Mayeen Khandaker, Abdullah Alsubaie, Abdulraheem Almalki, David Bradley, Nowshad Amin. High Mobility Reactive Sputtered CuxO Thin Film for Highly Efficient and Stable Perovskite Solar Cells. Crystals. 2021; 11 (4):389.
Chicago/Turabian StyleMohammad Islam; Yasmin Wahab; Mayeen Khandaker; Abdullah Alsubaie; Abdulraheem Almalki; David Bradley; Nowshad Amin. 2021. "High Mobility Reactive Sputtered CuxO Thin Film for Highly Efficient and Stable Perovskite Solar Cells." Crystals 11, no. 4: 389.
A detailed comparative analysis using alternative Cl compounds such as InCl2, MgCl2, SnCl2, and ZnCl2 along with CdCl2 was conducted in this study to assess their viability for the thermal treatment of ultrathin CdTe films. Similar or even better structural and electrical properties were found upon using InCl2, MgCl2, and ZnCl2 in thermal treatment than the conventional CdCl2. The film's bandgap is found to reduce upon the thermal treatment which varied in the range of 1.44‐1.50 eV. A low amount of metal doping occurred in films' surfaces upon thermal treatment and influence the carrier concentration which varied from 7.32 × 1015‐1.76 × 1017/cm3. The viability of the alternate materials was also investigated through the device simulation. All investigated results indicated that MgCl2 and ZnCl2 can be used in the current manufacturing technique instead of traditional CdCl2, which could reduce the environmental risk and production cost.
Mohammad Aminul Islam; Foo Wah Low; Sieh Kiong Tiong; Suhana Binti Mohd Said; Ghulam Muhammad; Akhtaruzzaman; Nowshad Amin. The viability of alternative and nontoxic chlorine containing compounds for thermal treatment of ultrathin CdTe (≤1.0 μm) films. International Journal of Energy Research 2021, 45, 13771 -13785.
AMA StyleMohammad Aminul Islam, Foo Wah Low, Sieh Kiong Tiong, Suhana Binti Mohd Said, Ghulam Muhammad, Akhtaruzzaman, Nowshad Amin. The viability of alternative and nontoxic chlorine containing compounds for thermal treatment of ultrathin CdTe (≤1.0 μm) films. International Journal of Energy Research. 2021; 45 (9):13771-13785.
Chicago/Turabian StyleMohammad Aminul Islam; Foo Wah Low; Sieh Kiong Tiong; Suhana Binti Mohd Said; Ghulam Muhammad; Akhtaruzzaman; Nowshad Amin. 2021. "The viability of alternative and nontoxic chlorine containing compounds for thermal treatment of ultrathin CdTe (≤1.0 μm) films." International Journal of Energy Research 45, no. 9: 13771-13785.
Renewable solar energy is the key target to reduce fossil fuel consumption, minimize global warming issues, and indirectly minimizes erratic weather patterns. Herein, the authors synthesized an ultrathin reduced graphene oxide (rGO) nanosheet with ~47 nm via an improved Hummer’s method. The TiO2 was deposited by RF sputtering onto an rGO nanosheet with a variation of temperature to enhance the photogenerated electron or charge carrier mobility transport for the photoanode component. The morphology, topologies, element composition, crystallinity as well as dye-sensitized solar cells’ (DSSCs) performance were determined accordingly. Based on the results, FTIR spectra revealed presence of Ti-O-C bonds in every rGO-TiO2 nanocomposite samples at 800 cm–1. Besides, XRD revealed that a broad peak of anatase TiO2 was detected at ~25.4° after incorporation with the rGO. Furthermore, it was discovered that sputtering temperature of 120 °C created a desired power conversion energy (PCE) of 7.27% based on the J-V plot. Further increase of the sputtering temperature to 160 °C and 200 °C led to excessive TiO2 growth on the rGO nanosheet, thus resulting in undesirable charge recombination formed at the photoanode in the DSSC device.
Foo Low; Goh Chin Hock; Muhammad Kashif; Nurul Samsudin; Chien Chau; Amaliyah Indah Utami; Mohammad Aminul Islam; Cheng Heah; Yun Liew; Chin Lai; Nowshad Amin; Sieh Tiong. Influence of Sputtering Temperature of TiO2 Deposited onto Reduced Graphene Oxide Nanosheet as Efficient Photoanodes in Dye-Sensitized Solar Cells. Molecules 2020, 25, 4852 .
AMA StyleFoo Low, Goh Chin Hock, Muhammad Kashif, Nurul Samsudin, Chien Chau, Amaliyah Indah Utami, Mohammad Aminul Islam, Cheng Heah, Yun Liew, Chin Lai, Nowshad Amin, Sieh Tiong. Influence of Sputtering Temperature of TiO2 Deposited onto Reduced Graphene Oxide Nanosheet as Efficient Photoanodes in Dye-Sensitized Solar Cells. Molecules. 2020; 25 (20):4852.
Chicago/Turabian StyleFoo Low; Goh Chin Hock; Muhammad Kashif; Nurul Samsudin; Chien Chau; Amaliyah Indah Utami; Mohammad Aminul Islam; Cheng Heah; Yun Liew; Chin Lai; Nowshad Amin; Sieh Tiong. 2020. "Influence of Sputtering Temperature of TiO2 Deposited onto Reduced Graphene Oxide Nanosheet as Efficient Photoanodes in Dye-Sensitized Solar Cells." Molecules 25, no. 20: 4852.
In this study, the impact of compositional variation of highly resistivity transparent (HRT) metal oxide ZTO deposited by co-sputtered technique has been studied. The atomic composition has been tailored by the change of RF power and sub-sequent thermal oxygenation in mixed nitrogen and oxygen atmosphere. A phase transition from ZnSnO3 to ZnSnO4 was observed in the X-ray diffraction spectra, indicating the possible oxygen incorporation into the films during the thermal annealing process. Uniform microstructures with compact interconnected grains of around 6-7 nm were found in SEM images while no significant changes been observed upon oxygenation. Besides, the significant alteration of electronic properties was noticed as an effect of compositional variation via oxygenation. All the films showed above 85% of optical transmittance in the visible light spectrum. The optimum optoelectronic properties for RF power has been determined as of 50W (ZnO) and 10W (SnO2) via thermal oxygenation at 400oC where the ratio O/(Zn+Sn) become around 1.6. The significant effect of oxygenation has been realized via primarily fabricated solar cells where the cell with ZnSnO4 HRT shows higher efficiency than the ZnSnO3.
Mohammad Aminul Islam; Khan Sobayel Bin Rafiq; Halina Misran; M. Akhtaruzzaman; Kuaanan Techato; Ghulam Muhammad; Nowshad Amin. Tailoring of the Structural and Optoelectronic Properties of Zinc-Tin-Oxide Thin Films via Oxygenation Process for Solar Cell Application. IEEE Access 2020, 8, 193560 -193568.
AMA StyleMohammad Aminul Islam, Khan Sobayel Bin Rafiq, Halina Misran, M. Akhtaruzzaman, Kuaanan Techato, Ghulam Muhammad, Nowshad Amin. Tailoring of the Structural and Optoelectronic Properties of Zinc-Tin-Oxide Thin Films via Oxygenation Process for Solar Cell Application. IEEE Access. 2020; 8 (99):193560-193568.
Chicago/Turabian StyleMohammad Aminul Islam; Khan Sobayel Bin Rafiq; Halina Misran; M. Akhtaruzzaman; Kuaanan Techato; Ghulam Muhammad; Nowshad Amin. 2020. "Tailoring of the Structural and Optoelectronic Properties of Zinc-Tin-Oxide Thin Films via Oxygenation Process for Solar Cell Application." IEEE Access 8, no. 99: 193560-193568.
In this study, CdS thin films with thicknesses of approximately 100 nm were deposited at a substrate temperature of 100 °C by a sputtering technique under two different ambient conditions—pure Ar ambient and Ar/O2 (99:1) ambient—at deposition power densities of 1.0 and 2.0 W/cm2, respectively The films were polycrystalline with a preferential orientation along the (002) crystal plane; however, the films deposited in the Ar/O2 ambient exhibited reduced crystallinity. Furthermore, the crystallite sizes, micro-strains, and dislocation densities of the films were significantly affected by oxygen diffusion into the films’ crystal structures. The CdS films deposited in the Ar/O2 ambient demonstrated higher optical transmittance and higher bandgaps. Morphologies observed from scanning electron microscopy images revealed that the grains of the films were also significantly affected by the oxygen present in the deposition ambient. Additionally, photoluminescence analysis revealed that the sulfur vacancies in the CdS films were partially filled by oxygen atoms, causing significant variations in the electrical properties of the films.
M.A. Islam; S.F. Wan Muhamad Hatta; H. Misran; M. Akhtaruzzaman; N. Amin. Influence of oxygen on structural and optoelectronic properties of CdS thin film deposited by magnetron sputtering technique. Chinese Journal of Physics 2020, 67, 170 -179.
AMA StyleM.A. Islam, S.F. Wan Muhamad Hatta, H. Misran, M. Akhtaruzzaman, N. Amin. Influence of oxygen on structural and optoelectronic properties of CdS thin film deposited by magnetron sputtering technique. Chinese Journal of Physics. 2020; 67 ():170-179.
Chicago/Turabian StyleM.A. Islam; S.F. Wan Muhamad Hatta; H. Misran; M. Akhtaruzzaman; N. Amin. 2020. "Influence of oxygen on structural and optoelectronic properties of CdS thin film deposited by magnetron sputtering technique." Chinese Journal of Physics 67, no. : 170-179.
Mohammad Aminul Islam; Dong Chung Nguyen; Yasuaki Ishikawa. Effective minority carrier lifetime as an indicator for potential-induced degradation in p-type single-crystalline silicon photovoltaic modules. Japanese Journal of Applied Physics 2019, 58, 106507 .
AMA StyleMohammad Aminul Islam, Dong Chung Nguyen, Yasuaki Ishikawa. Effective minority carrier lifetime as an indicator for potential-induced degradation in p-type single-crystalline silicon photovoltaic modules. Japanese Journal of Applied Physics. 2019; 58 (10):106507.
Chicago/Turabian StyleMohammad Aminul Islam; Dong Chung Nguyen; Yasuaki Ishikawa. 2019. "Effective minority carrier lifetime as an indicator for potential-induced degradation in p-type single-crystalline silicon photovoltaic modules." Japanese Journal of Applied Physics 58, no. 10: 106507.
The role of various substrate temperatures on the structural and optoelectronic properties of sputtered zinc sulfide (ZnS) thin films has been investigated in this work. The study of prepared film characterization has been done by XRD, AFM, UV–Vis spectrometry and Hall-effect measurement analysis. XRD patterns of the room temperature grown films reveal an amorphous nature, while the films deposited at 100 °C, 200 °C. 300 °C and 400 °C are found to be polycrystalline having the (111) preferential orientation. The optical bandgap values are found in the range of 3.18–3.61 eV depending on the substrate temperatures. The bulk and surface carrier densities are found in the order of 1012 cm−3 and 107 cm−3, respectively. The growth temperatures are also observed to have a significant effect on the electrical characteristic of the deposited films.
Faiazul Haque; Kazi Sajedur Rahman; Mohammad Aminul Islam; Yulisa Yusoff; Naveed Aziz Khan; Ammar Ahmed Nasser; Nowshad Amin. Effects of growth temperatures on the structural and optoelectronic properties of sputtered zinc sulfide thin films for solar cell applications. Optical and Quantum Electronics 2019, 51, 1 -13.
AMA StyleFaiazul Haque, Kazi Sajedur Rahman, Mohammad Aminul Islam, Yulisa Yusoff, Naveed Aziz Khan, Ammar Ahmed Nasser, Nowshad Amin. Effects of growth temperatures on the structural and optoelectronic properties of sputtered zinc sulfide thin films for solar cell applications. Optical and Quantum Electronics. 2019; 51 (8):1-13.
Chicago/Turabian StyleFaiazul Haque; Kazi Sajedur Rahman; Mohammad Aminul Islam; Yulisa Yusoff; Naveed Aziz Khan; Ammar Ahmed Nasser; Nowshad Amin. 2019. "Effects of growth temperatures on the structural and optoelectronic properties of sputtered zinc sulfide thin films for solar cell applications." Optical and Quantum Electronics 51, no. 8: 1-13.
In this study, we investigated the recombination dynamics of minority carriers through the decay profile analysis of transient diffuse reflectance spectroscopy (TDRS) for fresh and potential‐induced degradation (PID) modules. The PID‐affected region in terms of the degradation degree on the modules was firstly localized using conventional methods such as electroluminescence (EL) and lock‐in thermal images. The photogenerated carrier density and carrier lifetime were different in photovoltaic (PV) modules in fresh and PID modes. It was found that the dominant recombination involved the carrier transition via shallow trap states. The distribution of the trap states, however, was extended from the surface to the bulk of the solar cell due to Na ions–decorated defects. The behaviors of the carrier dynamics near the surface and bulk were very different, as inferred from the two different pump wavelengths of 532 and 1064 nm, respectively.
Mohammad Aminul Islam; Hiroyuki Matsuzaki; Yuusuke Okabayashi; Yasuaki Ishikawa. Transient carrier recombination dynamics in potential‐induced degradation p‐type single‐crystalline Si photovoltaic modules. Progress in Photovoltaics: Research and Applications 2019, 1 .
AMA StyleMohammad Aminul Islam, Hiroyuki Matsuzaki, Yuusuke Okabayashi, Yasuaki Ishikawa. Transient carrier recombination dynamics in potential‐induced degradation p‐type single‐crystalline Si photovoltaic modules. Progress in Photovoltaics: Research and Applications. 2019; ():1.
Chicago/Turabian StyleMohammad Aminul Islam; Hiroyuki Matsuzaki; Yuusuke Okabayashi; Yasuaki Ishikawa. 2019. "Transient carrier recombination dynamics in potential‐induced degradation p‐type single‐crystalline Si photovoltaic modules." Progress in Photovoltaics: Research and Applications , no. : 1.
Potential induced degradation (PID) is one of the genuinely critical concerns of a sustainable power generation from a PV system. Generally, the PID behavior of a PV module is tested in the laboratory according to the IEC standard before installation into a plant. On the other hand, an electroluminescence imaging is a reliable technique to identify the different types of PV cell defects which cause the degradation of the PV modules. The aim of this research is to investigate the PID behavior of similar PV modules in both the real on-site test and the laboratory standard test conditions. This will facilitate the outcome of the tangible indoor PID test results with more ease and reliability. It has been observed from the EL images of the on-site degraded PV module that a performance degradation happens due to different types of PV cell defects, such as, localized shunting, cracks, front contact grid interruptions, etc. The maximum power versus EL mean intensity shows a linear relationship which predicts the quantitative performance analysis of a PV module from an EL imaging process. The PID of a PV module has been found in a negative voltage stress condition in both the on-site and the laboratory tests. The shunt resistance gradually decreases as a consequence of the negative voltage stress only. The on-site degradation levels of the Pmax, Voc, Isc, and FF are 46.5, 7.15, 30.4, and 17.35% respectively after a duration of nearly 11 years of a negative voltage stress generated from a 240 V string size. In a laboratory PID test, the Pmax, Voc, Isc, and FF are degraded due to a negative voltage stress with a value of 6.83%, 1.9%, 1.5%, and 3.5% respectively.
M.A. Islam; M. Hasanuzzaman; Nasrudin Abd Rahim. A comparative investigation on in-situ and laboratory standard test of the potential induced degradation of crystalline silicon photovoltaic modules. Renewable Energy 2018, 127, 102 -113.
AMA StyleM.A. Islam, M. Hasanuzzaman, Nasrudin Abd Rahim. A comparative investigation on in-situ and laboratory standard test of the potential induced degradation of crystalline silicon photovoltaic modules. Renewable Energy. 2018; 127 ():102-113.
Chicago/Turabian StyleM.A. Islam; M. Hasanuzzaman; Nasrudin Abd Rahim. 2018. "A comparative investigation on in-situ and laboratory standard test of the potential induced degradation of crystalline silicon photovoltaic modules." Renewable Energy 127, no. : 102-113.
In recent years, potential induced degradation (PID) has been a topic of interest to scientists because of its significant impact on performance deterioration of solar cells. Research has shown that the major cause of PID defects for p-type Si solar cells is sodium (Na) ion migration from the soda-lime glass through the encapsulation layer into the solar cell. However, limited scientific investigations have been done on the influence and mechanism of Na ion decorated micro-cracks on the evolution of PID. In this work, Na ion decoration in micro-cracks as the important mechanism causing PID in p-type crystalline Si solar cells is presented and discussed in detail. Furthermore, a model of PID mechanism due to micro-cracks is proposed.
Nguyen Chung Dong; Mohammad Aminul Islam; Yasuaki Ishikawa; Yukiharu Uraoka. The influence of sodium ions decorated micro-cracks on the evolution of potential induced degradation in p-type crystalline silicon solar cells. Solar Energy 2018, 174, 1 -6.
AMA StyleNguyen Chung Dong, Mohammad Aminul Islam, Yasuaki Ishikawa, Yukiharu Uraoka. The influence of sodium ions decorated micro-cracks on the evolution of potential induced degradation in p-type crystalline silicon solar cells. Solar Energy. 2018; 174 ():1-6.
Chicago/Turabian StyleNguyen Chung Dong; Mohammad Aminul Islam; Yasuaki Ishikawa; Yukiharu Uraoka. 2018. "The influence of sodium ions decorated micro-cracks on the evolution of potential induced degradation in p-type crystalline silicon solar cells." Solar Energy 174, no. : 1-6.
In this study, transient diffuse reflectance spectroscopy (TDRS) and electroluminescence (EL) analysis have been employed to clarify the carrier dynamics in potential-induced degradation (PID) in single-crystalline Si (sc-Si) solar cell. We first localized the PID-affected region in terms of degradation intensity on the modules on the basis of EL. The carrier dynamics in that region are then studied and clarified in terms of carrier lifetime, defect level, and photogenerated carrier density. Our results suggest that carrier relaxation in a fresh solar cell proceeds via band to band and/or shallow and deep donor–acceptor recombination. However, the dominant recombination in solar cells with PID is intercenter charge transfer via shallow-to-deep and/or deep–deep defects for which the carrier lifetime decreased drastically. Also, it is found that the carrier dynamics near the surface and bulk do not progress similarly as confirmed using 532- and 1064-nm-wavelength pumps.
Mohammad Aminul Islam; Takuya Oshima; Daisuke Kobayashi; Hiroyuki Matsuzaki; Hidenari Nakahama; Yasuaki Ishikawa. Carrier dynamics in the potential-induced degradation in single-crystalline silicon photovoltaic modules. Japanese Journal of Applied Physics 2018, 57, 08RG14 .
AMA StyleMohammad Aminul Islam, Takuya Oshima, Daisuke Kobayashi, Hiroyuki Matsuzaki, Hidenari Nakahama, Yasuaki Ishikawa. Carrier dynamics in the potential-induced degradation in single-crystalline silicon photovoltaic modules. Japanese Journal of Applied Physics. 2018; 57 (8S3):08RG14.
Chicago/Turabian StyleMohammad Aminul Islam; Takuya Oshima; Daisuke Kobayashi; Hiroyuki Matsuzaki; Hidenari Nakahama; Yasuaki Ishikawa. 2018. "Carrier dynamics in the potential-induced degradation in single-crystalline silicon photovoltaic modules." Japanese Journal of Applied Physics 57, no. 8S3: 08RG14.
Power generation from sun oriented vitality through a photovoltaic (PV) system is ended up prevalent over the world due to clean innovation. Geographical location of Malaysia is very favorable for PV power generation system. The Malaysian government has also taken different steps to increase the use of solar energy especially by emphasizing on building integrated PV (BIPV) system. Comparative study on the feasibility of BIPV installation at the different location of Malaysia is rarely found. On the other hand, solar cell temperature has a negative impact on the electricity generation. So in this study cost effectiveness and initial investment cost of building integrated grid connected solar PV power plant in different regions of Malaysia have been carried. The effect of PV solar cell temperature on the payback period (PBP) is also investigated. Highest PBP is 12.38 years at Selangor and lowest PBP is 9.70 years at Sabah (Kota Kinabalu). Solar cell temperature significantly increases the PBP of PV plant and highest 14.64% and lowest 13.20% raise of PBP are encountered at Penang and Sarawak respectively.
M A Islam; M Hasanuzzaman; N A Rahim. Design and Analysis of Photovoltaic (PV) Power Plant at Different Locations in Malaysia. IOP Conference Series: Materials Science and Engineering 2018, 358, 012019 .
AMA StyleM A Islam, M Hasanuzzaman, N A Rahim. Design and Analysis of Photovoltaic (PV) Power Plant at Different Locations in Malaysia. IOP Conference Series: Materials Science and Engineering. 2018; 358 (1):012019.
Chicago/Turabian StyleM A Islam; M Hasanuzzaman; N A Rahim. 2018. "Design and Analysis of Photovoltaic (PV) Power Plant at Different Locations in Malaysia." IOP Conference Series: Materials Science and Engineering 358, no. 1: 012019.
Mohammad Aminul Islam; Kazi Sajedur Rahman; K. Sobayel; T. Enam; A.M. Ali; Mukter Zaman; M. Akhtaruzzaman; Nowshad Amin. Fabrication of high efficiency sputtered CdS:O/CdTe thin film solar cells from window/absorber layer growth optimization in magnetron sputtering. Solar Energy Materials and Solar Cells 2017, 172, 384 -393.
AMA StyleMohammad Aminul Islam, Kazi Sajedur Rahman, K. Sobayel, T. Enam, A.M. Ali, Mukter Zaman, M. Akhtaruzzaman, Nowshad Amin. Fabrication of high efficiency sputtered CdS:O/CdTe thin film solar cells from window/absorber layer growth optimization in magnetron sputtering. Solar Energy Materials and Solar Cells. 2017; 172 ():384-393.
Chicago/Turabian StyleMohammad Aminul Islam; Kazi Sajedur Rahman; K. Sobayel; T. Enam; A.M. Ali; Mukter Zaman; M. Akhtaruzzaman; Nowshad Amin. 2017. "Fabrication of high efficiency sputtered CdS:O/CdTe thin film solar cells from window/absorber layer growth optimization in magnetron sputtering." Solar Energy Materials and Solar Cells 172, no. : 384-393.
The paper represents a smart gadget to avert the calamitous effects of pest bugs in the farming land as well as in household commodities. In this paper, development and performance analysis of smart ultrasonic insects repellent device has been demonstrated. This device is able to generate different types of frequencies which are very helpful to repel different types of insects. It can be controlled from any distance with DTMF (Dual Tone Multi Frequency) technology. Besides, manual control with night mode via LDR (Light Dependent Resistor) has also been employed. The device would be charged through solar energy system which is a cost effective approach. A power amplifier along with a microcontroller known as Arduino Uno as well as solar charger circuit regulator and solar panel are used. The implementation of this device in farmland has shown a great reduction of bugs attack compared to the other land which doesn't have one.
Humayun Rashid; Iftekhar Uddin Ahmed; S. M. Taslim Reza; M. A. Islam. Solar powered smart ultrasonic insects repellent with DTMF and manual control for agriculture. 2017 IEEE International Conference on Imaging, Vision & Pattern Recognition (icIVPR) 2017, 1 -5.
AMA StyleHumayun Rashid, Iftekhar Uddin Ahmed, S. M. Taslim Reza, M. A. Islam. Solar powered smart ultrasonic insects repellent with DTMF and manual control for agriculture. 2017 IEEE International Conference on Imaging, Vision & Pattern Recognition (icIVPR). 2017; ():1-5.
Chicago/Turabian StyleHumayun Rashid; Iftekhar Uddin Ahmed; S. M. Taslim Reza; M. A. Islam. 2017. "Solar powered smart ultrasonic insects repellent with DTMF and manual control for agriculture." 2017 IEEE International Conference on Imaging, Vision & Pattern Recognition (icIVPR) , no. : 1-5.
This study focuses on the localized junction defects in standard P-silicon solar cell provoked by the potential induced degradation (PID) under laboratory condition. Different characterization tools such as electroluminescence (EL), thermo-imaging, current density mapping, light and dark I-V and transient absorption spectroscopy (TAS) were employed to investigate the degradation involving to PID. A correlation between localized junction defects, local current loss and leakage current has been found.
Mohammad Aminul Islam; Kazuki Noguchi; Hidenari Nakahama; Yasuaki Ishikawa. Localized defect study of laboratory PID tested module. 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC) 2016, 885 -888.
AMA StyleMohammad Aminul Islam, Kazuki Noguchi, Hidenari Nakahama, Yasuaki Ishikawa. Localized defect study of laboratory PID tested module. 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC). 2016; ():885-888.
Chicago/Turabian StyleMohammad Aminul Islam; Kazuki Noguchi; Hidenari Nakahama; Yasuaki Ishikawa. 2016. "Localized defect study of laboratory PID tested module." 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC) , no. : 885-888.