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The synthesis and characterization of a family of copper(i) complexes bearing a bridged bis-pyridyl ancillary ligand is reported, highlighting how the bridge nature impacts the photo- and electro-luminescent behaviours within the family.
Gilbert Umuhire Mahoro; Elisa Fresta; Margaux Elie; Davide di Nasso; Qi Zhang; Jean-François Lohier; Jean-Luc Renaud; Mathieu Linares; Reinhold Wannemacher; Juan Cabanillas-Gonzalez; Rubén D. Costa; Sylvain Gaillard. Towards rainbow photo/electro-luminescence in copper(i) complexes with the versatile bridged bis-pyridyl ancillary ligand. Dalton Transactions 2021, 50, 11049 -11060.
AMA StyleGilbert Umuhire Mahoro, Elisa Fresta, Margaux Elie, Davide di Nasso, Qi Zhang, Jean-François Lohier, Jean-Luc Renaud, Mathieu Linares, Reinhold Wannemacher, Juan Cabanillas-Gonzalez, Rubén D. Costa, Sylvain Gaillard. Towards rainbow photo/electro-luminescence in copper(i) complexes with the versatile bridged bis-pyridyl ancillary ligand. Dalton Transactions. 2021; 50 (32):11049-11060.
Chicago/Turabian StyleGilbert Umuhire Mahoro; Elisa Fresta; Margaux Elie; Davide di Nasso; Qi Zhang; Jean-François Lohier; Jean-Luc Renaud; Mathieu Linares; Reinhold Wannemacher; Juan Cabanillas-Gonzalez; Rubén D. Costa; Sylvain Gaillard. 2021. "Towards rainbow photo/electro-luminescence in copper(i) complexes with the versatile bridged bis-pyridyl ancillary ligand." Dalton Transactions 50, no. 32: 11049-11060.
We show that thiol–ene-like “click” chemistry can be used to decorate franckeite, a naturally occurring van der Waals heterostructure with maleimide reagents. In this way, we provide a pathway towards 2D–2D–0D mixed-dimensional heterostructures.
Julia Villalva; Sara Moreno-Da Silva; Palmira Villa; Luisa Ruiz-González; Cristina Navío; Saül Garcia-Orrit; Víctor Vega-Mayoral; Juan Cabanillas-González; Andrés Castellanos-Gomez; Emerson Giovanelli; Emilio M. Pérez. Covalent modification of franckeite with maleimides: connecting molecules and van der Waals heterostructures. Nanoscale Horizons 2021, 6, 551 -558.
AMA StyleJulia Villalva, Sara Moreno-Da Silva, Palmira Villa, Luisa Ruiz-González, Cristina Navío, Saül Garcia-Orrit, Víctor Vega-Mayoral, Juan Cabanillas-González, Andrés Castellanos-Gomez, Emerson Giovanelli, Emilio M. Pérez. Covalent modification of franckeite with maleimides: connecting molecules and van der Waals heterostructures. Nanoscale Horizons. 2021; 6 (7):551-558.
Chicago/Turabian StyleJulia Villalva; Sara Moreno-Da Silva; Palmira Villa; Luisa Ruiz-González; Cristina Navío; Saül Garcia-Orrit; Víctor Vega-Mayoral; Juan Cabanillas-González; Andrés Castellanos-Gomez; Emerson Giovanelli; Emilio M. Pérez. 2021. "Covalent modification of franckeite with maleimides: connecting molecules and van der Waals heterostructures." Nanoscale Horizons 6, no. 7: 551-558.
The development of straightforward reproducible methods for the preparation of new photoluminescent coordination polymers (CPs) is an important goal in luminescence and chemical sensing fields. Isophthalic acid derivatives have been reported for a wide range of applications, and in addition to their relatively low cost, have encouraged its use in the preparation of novel lanthanide-based coordination polymers (LnCPs). Considering that the photoluminescent properties of these CPs are highly dependent on the existence of water molecules in the crystal structure, our research efforts are now focused on the preparation of CP with the lowest water content possible, while considering a green chemistry approach. One- and two-dimensional (1D and 2D) LnCPs were prepared from 5-aminoisophthalic acid and Sm3+/Tb3+ using hydrothermal and/or microwave-assisted synthesis. The unprecedented LnCPs were characterized by single-crystal X-ray diffraction (SCRXD), powder X-ray diffraction (PXRD), Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM), and their photoluminescence (PL) properties were studied in the solid state, at room temperature, using the CPs as powders and encapsulated in poly(methyl methacrylate (PMMA) films, envisaging the potential preparation of devices for sensing. The materials revealed interesting PL properties that depend on the dimensionality, metal ion, co-ligand used and water content.
Carla Queirós; Chen Sun; Ana Silva; Baltazar de Castro; Juan Cabanillas-Gonzalez; Luís Cunha-Silva. Multidimensional Ln-Aminophthalate Photoluminescent Coordination Polymers. Materials 2021, 14, 1786 .
AMA StyleCarla Queirós, Chen Sun, Ana Silva, Baltazar de Castro, Juan Cabanillas-Gonzalez, Luís Cunha-Silva. Multidimensional Ln-Aminophthalate Photoluminescent Coordination Polymers. Materials. 2021; 14 (7):1786.
Chicago/Turabian StyleCarla Queirós; Chen Sun; Ana Silva; Baltazar de Castro; Juan Cabanillas-Gonzalez; Luís Cunha-Silva. 2021. "Multidimensional Ln-Aminophthalate Photoluminescent Coordination Polymers." Materials 14, no. 7: 1786.
Amorphous thin films from solution‐processable semiconductors are key materials for low‐cost and large area optoelectronics. Design rules toward novel amorphous compounds with outstanding light emission and light amplification properties require understanding of the intimate relation between chemical and electronic structure. Here, a series of compounds with tunable electronic transition characters of the lowest excited state, from local excited (LE), hybrid local charge‐transfer (HLCT) to charge‐transfer (CT) character is delicately designed. By deploying a combination of computational calculations and femtosecond‐transient absorption experiments, it is shown that pure LE states strongly coupled to high wavenumber vibrational modes favor to form a few dominant discrete vibrational levels and are essential for optical gain, whereas HLCT or CT states are preferably coupled to low frequency vibrational modes and form a large number of consecutive vibrational levels which lead to broad excited‐state absorption overwhelming stimulated emission. The results provide guidelines for the rational design of efficient organic laser materials.
Qi Wei; Ruihong Duan; Qi Zhang; Linghai Xie; Ruidong Xia; Yuanping Yi; Jérémie Léonard; Stefan Haacke; Juan Cabanillas‐Gonzalez; Yan Qian; Wei Huang. Origin of Intramolecular Low‐Threshold Amplified Spontaneous Emission. Advanced Optical Materials 2021, 9, 2001956 .
AMA StyleQi Wei, Ruihong Duan, Qi Zhang, Linghai Xie, Ruidong Xia, Yuanping Yi, Jérémie Léonard, Stefan Haacke, Juan Cabanillas‐Gonzalez, Yan Qian, Wei Huang. Origin of Intramolecular Low‐Threshold Amplified Spontaneous Emission. Advanced Optical Materials. 2021; 9 (12):2001956.
Chicago/Turabian StyleQi Wei; Ruihong Duan; Qi Zhang; Linghai Xie; Ruidong Xia; Yuanping Yi; Jérémie Léonard; Stefan Haacke; Juan Cabanillas‐Gonzalez; Yan Qian; Wei Huang. 2021. "Origin of Intramolecular Low‐Threshold Amplified Spontaneous Emission." Advanced Optical Materials 9, no. 12: 2001956.
A fast and reversible switch between the neutral and protonated porphyrin forms inside a pliable porphyrinic metal–organic framework (MOF), enabled by reversible structural deformation is unveiled. This phenomenon is applied for the development of MOF‐polymer porous composites to reveal biogenic amines by color changes.
Ahmad Sousaraei; Carla Queirós; Francisco G. Moscoso; Ana M. G. Silva; Tânia Lopes‐Costa; José M. Pedrosa; Luís Cunha‐Silva; Juan Cabanillas‐Gonzalez. Reversible Protonation of Porphyrinic Metal‐Organic Frameworks Embedded in Nanoporous Polydimethylsiloxane for Colorimetric Sensing. Advanced Materials Interfaces 2021, 8, 2001759 .
AMA StyleAhmad Sousaraei, Carla Queirós, Francisco G. Moscoso, Ana M. G. Silva, Tânia Lopes‐Costa, José M. Pedrosa, Luís Cunha‐Silva, Juan Cabanillas‐Gonzalez. Reversible Protonation of Porphyrinic Metal‐Organic Frameworks Embedded in Nanoporous Polydimethylsiloxane for Colorimetric Sensing. Advanced Materials Interfaces. 2021; 8 (10):2001759.
Chicago/Turabian StyleAhmad Sousaraei; Carla Queirós; Francisco G. Moscoso; Ana M. G. Silva; Tânia Lopes‐Costa; José M. Pedrosa; Luís Cunha‐Silva; Juan Cabanillas‐Gonzalez. 2021. "Reversible Protonation of Porphyrinic Metal‐Organic Frameworks Embedded in Nanoporous Polydimethylsiloxane for Colorimetric Sensing." Advanced Materials Interfaces 8, no. 10: 2001759.
Organic lasers have undergone decades of development. A myriad of materials with excellent optical gain properties, including small molecules, dendrimers, and polymers, have been demonstrated. Various resonator geometries have also been applied. While sharing the advantages of the solution processability and mechanical flexibility features of organic materials, organic optical gain media also offer interesting optical properties, such as emission tunability through chemical functionalization and inherent large optical gain coefficients. They offer prospects for different applications in the fields of bioimaging, medicine, chemo‐ and biosensing, anticounterfeit applications, or displays. However, the realization of electrically pumped organic lasers still remains a challenge due to the inherent drawbacks of organic semiconductors, e.g., modest carrier mobility, long‐lived excited‐state absorption, and extra losses which originate in the device (e.g., absorption from metal electrodes). Herein, the past developments of organic lasers are discussed, highlighting the importance of materials and cavities with regard to the goal of electrically pumped organic lasers. The latest progress and the possible ways to address the challenge are discussed.
Qi Zhang; Wenwen Tao; Jingsong Huang; Ruidong Xia; Juan Cabanillas-Gonzalez. Toward Electrically Pumped Organic Lasers: A Review and Outlook on Material Developments and Resonator Architectures. Advanced Photonics Research 2021, 2, 2000155 .
AMA StyleQi Zhang, Wenwen Tao, Jingsong Huang, Ruidong Xia, Juan Cabanillas-Gonzalez. Toward Electrically Pumped Organic Lasers: A Review and Outlook on Material Developments and Resonator Architectures. Advanced Photonics Research. 2021; 2 (5):2000155.
Chicago/Turabian StyleQi Zhang; Wenwen Tao; Jingsong Huang; Ruidong Xia; Juan Cabanillas-Gonzalez. 2021. "Toward Electrically Pumped Organic Lasers: A Review and Outlook on Material Developments and Resonator Architectures." Advanced Photonics Research 2, no. 5: 2000155.
Organic semiconductor micro/nanocrystals (OSMCs) have attracted great attention due to their numerous advantages such us free grain boundaries, minimal defects and traps, molecular diversity, low cost, flexibility and solution processability. Due to all these characteristics, they are strong candidates for the next generation of electronic and optoelectronic devices. In this review, we present a comprehensive overview of these OSMCs, discussing molecular packing, the methods to control crystallization and their applications to the area of organic solid-state lasers. Special emphasis is given to OSMC lasers which self-assemble into geometrically defined optical resonators owing to their attractive prospects for tuning/control of light emission properties through geometrical resonator design. The most recent developments together with novel strategies for light emission tuning and effective light extraction are presented.
Javier Álvarez-Conde; Eva García-Frutos; Juan Cabanillas-Gonzalez. Organic Semiconductor Micro/Nanocrystals for Laser Applications. Molecules 2021, 26, 958 .
AMA StyleJavier Álvarez-Conde, Eva García-Frutos, Juan Cabanillas-Gonzalez. Organic Semiconductor Micro/Nanocrystals for Laser Applications. Molecules. 2021; 26 (4):958.
Chicago/Turabian StyleJavier Álvarez-Conde; Eva García-Frutos; Juan Cabanillas-Gonzalez. 2021. "Organic Semiconductor Micro/Nanocrystals for Laser Applications." Molecules 26, no. 4: 958.
Self-heating in light-emitting electrochemical cells (LECs) has been long overlooked, while it has a significant impact on i) device chromaticity by changing the electroluminescent band shape, ii) device efficiency due to thermal quenching and exciton dissociation reducing the external quantum efficiency (EQE), and iii) device stability due to thermal induced degradation of exciton and doped species, phase separation, and collapse of the intrinsic emitting zone. Herein, we reveal, for the first time, a direct relationship between self-heating and the early changes of the device chromaticity as well as the magnitude of the error comparing theoretical/experimental EQEs – i.e., overestimation error of ca. 35 % at usual pixel working temperatures of around 50 °C. This has been realized in LECs using a benchmark nanographene – i.e., hexa-peri-hexabenzocoronene – as an emerging class of emitters with outstanding device performance compared to the prior-art of small molecule LECs – e.g., luminances of 345 cd/m2 and EQEs of 0.35%. As such, this work is a fundamental contribution highlighting how self-heating is a critical limitation towards the optimization and wide use of LECs.
Elisa Fresta; Jacopo Dosso; Juan Cabanillas-Gonzalez; Davide Bonifazi; Rubén D. Costa. Revealing the Impact of Heat Generation Using Nanographene-Based Light-Emitting Electrochemical Cells. ACS Applied Materials & Interfaces 2020, 12, 28426 -28434.
AMA StyleElisa Fresta, Jacopo Dosso, Juan Cabanillas-Gonzalez, Davide Bonifazi, Rubén D. Costa. Revealing the Impact of Heat Generation Using Nanographene-Based Light-Emitting Electrochemical Cells. ACS Applied Materials & Interfaces. 2020; 12 (25):28426-28434.
Chicago/Turabian StyleElisa Fresta; Jacopo Dosso; Juan Cabanillas-Gonzalez; Davide Bonifazi; Rubén D. Costa. 2020. "Revealing the Impact of Heat Generation Using Nanographene-Based Light-Emitting Electrochemical Cells." ACS Applied Materials & Interfaces 12, no. 25: 28426-28434.
Qi Zhang; Yinan Wu; Shaoshan Lian; Jinxin Gao; Sihao Zhang; Gang Hai; Chen Sun; Xiangchun Li; Ruidong Xia; Juan Cabanillas-Gonzalez; Yueqi Mo. Simultaneously Enhancing Photoluminescence Quantum Efficiency and Optical Gain of Polyfluorene via Backbone Intercalation of 2,5‐Dimethyl‐1,4‐Phenylene. Advanced Optical Materials 2020, 8, 1 .
AMA StyleQi Zhang, Yinan Wu, Shaoshan Lian, Jinxin Gao, Sihao Zhang, Gang Hai, Chen Sun, Xiangchun Li, Ruidong Xia, Juan Cabanillas-Gonzalez, Yueqi Mo. Simultaneously Enhancing Photoluminescence Quantum Efficiency and Optical Gain of Polyfluorene via Backbone Intercalation of 2,5‐Dimethyl‐1,4‐Phenylene. Advanced Optical Materials. 2020; 8 (12):1.
Chicago/Turabian StyleQi Zhang; Yinan Wu; Shaoshan Lian; Jinxin Gao; Sihao Zhang; Gang Hai; Chen Sun; Xiangchun Li; Ruidong Xia; Juan Cabanillas-Gonzalez; Yueqi Mo. 2020. "Simultaneously Enhancing Photoluminescence Quantum Efficiency and Optical Gain of Polyfluorene via Backbone Intercalation of 2,5‐Dimethyl‐1,4‐Phenylene." Advanced Optical Materials 8, no. 12: 1.
A novel gas sensing mechanism exploiting lanthanide luminescence modulation upon NO2 adsorption is here demonstrated. Two isostructural lanthanide-based metal-organic frameworks are used including a recognition center (amino-group) that provides high selectivity for NO2 molecules. Energy transfer from the organic ligands to Ln is strongly dependent on the presence of NO2, resulting in an unprecedented photo-luminescent sensing scheme. Thereby, NO2 exposition triggers either a reversible enhancement or a decrease of the luminescence intensity, depending on the lanthanide ion (Eu or Tb). Our experimental studies combined with DFT and complete active space self-consistent field calculations, provide understanding of the nature and effects of NO2 interactions within the MOFs and the signal transduction mechanism.
Arturo Gamonal; Chen Sun; Antonio Lorenzo Mariano; Estefania Fernandez-Bartolomé; Elena Guerrero-SanVicente; Bess Vlaisavljevich; Javier Castells-Gil; Carlos Marti-Gastaldo; Roberta Poloni; Reinhold Wannemacher; Juan Cabanillas-Gonzalez; Jose Sanchez Costa. Divergent Adsorption-Dependent Luminescence of Amino-Functionalized Lanthanide Metal–Organic Frameworks for Highly Sensitive NO2 Sensors. The Journal of Physical Chemistry Letters 2020, 11, 3362 -3368.
AMA StyleArturo Gamonal, Chen Sun, Antonio Lorenzo Mariano, Estefania Fernandez-Bartolomé, Elena Guerrero-SanVicente, Bess Vlaisavljevich, Javier Castells-Gil, Carlos Marti-Gastaldo, Roberta Poloni, Reinhold Wannemacher, Juan Cabanillas-Gonzalez, Jose Sanchez Costa. Divergent Adsorption-Dependent Luminescence of Amino-Functionalized Lanthanide Metal–Organic Frameworks for Highly Sensitive NO2 Sensors. The Journal of Physical Chemistry Letters. 2020; 11 (9):3362-3368.
Chicago/Turabian StyleArturo Gamonal; Chen Sun; Antonio Lorenzo Mariano; Estefania Fernandez-Bartolomé; Elena Guerrero-SanVicente; Bess Vlaisavljevich; Javier Castells-Gil; Carlos Marti-Gastaldo; Roberta Poloni; Reinhold Wannemacher; Juan Cabanillas-Gonzalez; Jose Sanchez Costa. 2020. "Divergent Adsorption-Dependent Luminescence of Amino-Functionalized Lanthanide Metal–Organic Frameworks for Highly Sensitive NO2 Sensors." The Journal of Physical Chemistry Letters 11, no. 9: 3362-3368.
Self-assembled molecules for outstanding hydrogen evolution rate and durability should promise practical water splitting due to the versatile visible light absorption, low production cost and ease of control. Here, we adapted an amphiphilic molecule as a building block for efficient small molecule based self-assembled photocatalyst for hydrogen evolution from water. The self-assembled molecules with platinum co-catalyst showed outstanding performance (turnover number ~ 27,000) virtually comparable to the state-of-the-art metal oxide based photocatalysts with catalytic activity extending over days. Transient absorption studies in combination with quantum chemical calculations revealed that elaborate excited state engineering of the molecules resulted in such high performance of hydrogen evolution from water. This study shows that the self-assembled amphiphilic molecules could pave the way to more economical and reproducible production of hydrogen from water.
Hyun-Jun Lee; Jaekwan Kim; Abasi Abudulimu; Juan Cabanillas-Gonzalez; Paramjyothi C. Nandajan; Johannes Gierschner; Larry Lüer; Soo Young Park. Self-Assembled Amphiphilic Molecules for Highly Efficient Photocatalytic Hydrogen Evolution from Water. The Journal of Physical Chemistry C 2020, 124, 6971 -6978.
AMA StyleHyun-Jun Lee, Jaekwan Kim, Abasi Abudulimu, Juan Cabanillas-Gonzalez, Paramjyothi C. Nandajan, Johannes Gierschner, Larry Lüer, Soo Young Park. Self-Assembled Amphiphilic Molecules for Highly Efficient Photocatalytic Hydrogen Evolution from Water. The Journal of Physical Chemistry C. 2020; 124 (13):6971-6978.
Chicago/Turabian StyleHyun-Jun Lee; Jaekwan Kim; Abasi Abudulimu; Juan Cabanillas-Gonzalez; Paramjyothi C. Nandajan; Johannes Gierschner; Larry Lüer; Soo Young Park. 2020. "Self-Assembled Amphiphilic Molecules for Highly Efficient Photocatalytic Hydrogen Evolution from Water." The Journal of Physical Chemistry C 124, no. 13: 6971-6978.
A selective luminescent sensor was fabricated by simply mixing a Tb(iii)-based MOF with polymethylmetahacrylate enabling to detect sub-ppb range of nitroaromatic vapours.
Francisco Javier G Moscoso; José Almeida; Ahmad Sousaraei; Tânia Lopes-Costa; Ana M. G. Silva; Juan Cabanillas-Gonzalez; Luís Cunha-Silva; José M. Pedrosa. A lanthanide MOF immobilized in PMMA transparent films as a selective fluorescence sensor for nitroaromatic explosive vapours. Journal of Materials Chemistry C 2020, 8, 3626 -3630.
AMA StyleFrancisco Javier G Moscoso, José Almeida, Ahmad Sousaraei, Tânia Lopes-Costa, Ana M. G. Silva, Juan Cabanillas-Gonzalez, Luís Cunha-Silva, José M. Pedrosa. A lanthanide MOF immobilized in PMMA transparent films as a selective fluorescence sensor for nitroaromatic explosive vapours. Journal of Materials Chemistry C. 2020; 8 (11):3626-3630.
Chicago/Turabian StyleFrancisco Javier G Moscoso; José Almeida; Ahmad Sousaraei; Tânia Lopes-Costa; Ana M. G. Silva; Juan Cabanillas-Gonzalez; Luís Cunha-Silva; José M. Pedrosa. 2020. "A lanthanide MOF immobilized in PMMA transparent films as a selective fluorescence sensor for nitroaromatic explosive vapours." Journal of Materials Chemistry C 8, no. 11: 3626-3630.
Transparent polymeric matrices serve as efficient platforms to immobilize Tb(BTC) crystals whose fluorescence is quenched in the presence of NO2.
Francisco García Moscoso; José Almeida; Ahmad Sousaraei; Tânia Lopes-Costa; Ana M. G. Silva; Juan Cabanillas-Gonzalez; Luís Cunha-Silva; José M. Pedrosa. Luminescent MOF crystals embedded in PMMA/PDMS transparent films as effective NO2 gas sensors. Molecular Systems Design & Engineering 2020, 5, 1048 -1056.
AMA StyleFrancisco García Moscoso, José Almeida, Ahmad Sousaraei, Tânia Lopes-Costa, Ana M. G. Silva, Juan Cabanillas-Gonzalez, Luís Cunha-Silva, José M. Pedrosa. Luminescent MOF crystals embedded in PMMA/PDMS transparent films as effective NO2 gas sensors. Molecular Systems Design & Engineering. 2020; 5 (6):1048-1056.
Chicago/Turabian StyleFrancisco García Moscoso; José Almeida; Ahmad Sousaraei; Tânia Lopes-Costa; Ana M. G. Silva; Juan Cabanillas-Gonzalez; Luís Cunha-Silva; José M. Pedrosa. 2020. "Luminescent MOF crystals embedded in PMMA/PDMS transparent films as effective NO2 gas sensors." Molecular Systems Design & Engineering 5, no. 6: 1048-1056.
A red-emitting contorted hexabenzoovalene yielded bright and stable light-emitting electrochemical cells showing electric-field dependent emission.
Elisa Fresta; Kevin Baumgaertner; Juan Cabanillas-Gonzalez; Michael Mastalerz; Rubén D. Costa. Bright, stable, and efficient red light-emitting electrochemical cells using contorted nanographenes. Nanoscale Horizons 2019, 5, 473 -480.
AMA StyleElisa Fresta, Kevin Baumgaertner, Juan Cabanillas-Gonzalez, Michael Mastalerz, Rubén D. Costa. Bright, stable, and efficient red light-emitting electrochemical cells using contorted nanographenes. Nanoscale Horizons. 2019; 5 (3):473-480.
Chicago/Turabian StyleElisa Fresta; Kevin Baumgaertner; Juan Cabanillas-Gonzalez; Michael Mastalerz; Rubén D. Costa. 2019. "Bright, stable, and efficient red light-emitting electrochemical cells using contorted nanographenes." Nanoscale Horizons 5, no. 3: 473-480.
Luminescent metal-organic frameworks (LMOFs) are promising materials for lighting and sensing applications. Herein, exposure of the highly luminescent Zn2(bpdc)2(bpee) MOF (H2bpdc = 4,4'-biphenyldicarboxylic acid and bpee = 1,2-bipyridylethene) to subppm amine contents turns on a new absorption band unambiguously ascribed to free bpee molecules concomitant with the gradual appearance of a new photoluminescence band at shorter wavelengths. These findings combined with Fourier-transform infrared spectra, powder X-ray diffraction and thermogravimetric analysis of exposed LMOF powders confirm that bpee ligands are exchanged by amines and released inside the LMOF, triggering absorption and luminescence features which can be exploited for highly sensitive amine recognition. This principle was demonstrated in mixed matrix membranes (MMMs) prepared by a simple solvent-free method consisting of mixing Zn2(bpdc)2(bpee) with dimethylvinyl-terminated dimethylsiloxane and dimethylhydrogen siloxane. This method enabled the production of free-standing, permeable, and highly transparent MMMs which showed enormous potential and sensitivity to the detection of amines in gas phase and aqueous medium.
Ahmad Sousaraei; Carla Queirós; Francisco Javier García Moscoso; Tania Lopes-Costa; Jose M. Pedrosa; Ana Silva; Luís Cunha-Silva; Juan Cabanillas-Gonzalez. Subppm Amine Detection via Absorption and Luminescence Turn-On Caused by Ligand Exchange in Metal Organic Frameworks. Analytical Chemistry 2019, 91, 15853 -15859.
AMA StyleAhmad Sousaraei, Carla Queirós, Francisco Javier García Moscoso, Tania Lopes-Costa, Jose M. Pedrosa, Ana Silva, Luís Cunha-Silva, Juan Cabanillas-Gonzalez. Subppm Amine Detection via Absorption and Luminescence Turn-On Caused by Ligand Exchange in Metal Organic Frameworks. Analytical Chemistry. 2019; 91 (24):15853-15859.
Chicago/Turabian StyleAhmad Sousaraei; Carla Queirós; Francisco Javier García Moscoso; Tania Lopes-Costa; Jose M. Pedrosa; Ana Silva; Luís Cunha-Silva; Juan Cabanillas-Gonzalez. 2019. "Subppm Amine Detection via Absorption and Luminescence Turn-On Caused by Ligand Exchange in Metal Organic Frameworks." Analytical Chemistry 91, no. 24: 15853-15859.
A simple approach for the fabrication of functional nanopatterned protein materials using protein engineering and soft-nanolithography and its implementation in optical devices based on distributed feedback (DFB) laser phenomena.
Daniel Sanchez-Dealcazar; David Romera; Jose Castro-Smirnov; Ahmad Sousaraei; Santiago Casado; Anna Espasa; María C. Morant-Miñana; Jaime J. Hernandez; Isabel Rodríguez; Rubén D. Costa; Juan Cabanillas-Gonzalez; Ramses V. Martinez; Aitziber L. Cortajarena. Engineered protein-based functional nanopatterned materials for bio-optical devices. Nanoscale Advances 2019, 1, 3980 -3991.
AMA StyleDaniel Sanchez-Dealcazar, David Romera, Jose Castro-Smirnov, Ahmad Sousaraei, Santiago Casado, Anna Espasa, María C. Morant-Miñana, Jaime J. Hernandez, Isabel Rodríguez, Rubén D. Costa, Juan Cabanillas-Gonzalez, Ramses V. Martinez, Aitziber L. Cortajarena. Engineered protein-based functional nanopatterned materials for bio-optical devices. Nanoscale Advances. 2019; 1 (10):3980-3991.
Chicago/Turabian StyleDaniel Sanchez-Dealcazar; David Romera; Jose Castro-Smirnov; Ahmad Sousaraei; Santiago Casado; Anna Espasa; María C. Morant-Miñana; Jaime J. Hernandez; Isabel Rodríguez; Rubén D. Costa; Juan Cabanillas-Gonzalez; Ramses V. Martinez; Aitziber L. Cortajarena. 2019. "Engineered protein-based functional nanopatterned materials for bio-optical devices." Nanoscale Advances 1, no. 10: 3980-3991.
Examples of complexes formed by the association of two dissimilar polymers are scarce. We unravel in this report a rare phenomenon of complexation of two conjugated polymers in highly diluted solutions. Spectroscopic characterization of titrated solutions combined with Quantum Molecular Dynamics and Time-Dependent Density Functional Theory reveal the presence of strong supramolecular interactions giving raise to the formation of conjugated heterocomplexes of distinctive charge transfer electronic character. Temperature dependent studies provide association constants in the 104-105 range and negative Van’t Hoff slopes characteristic of entropy-driven association. We explain the entropy gain as the result of solvent molecules release and their subsequent redistribution upon polymer association. Our findings have implications in the field of organic photovoltaics, where the mixing/segregation of polymers of different electronic character is key to performance.
Longfei Wu; Belen Nieto-Ortega; Teresa Naranjo; Emilio M. Pérez; Juan Cabanillas-Gonzalez. Entropy-Driven Heterocomplexation of Conjugated Polymers in Highly Diluted Solutions. The Journal of Physical Chemistry C 2019, 123, 16596 -16601.
AMA StyleLongfei Wu, Belen Nieto-Ortega, Teresa Naranjo, Emilio M. Pérez, Juan Cabanillas-Gonzalez. Entropy-Driven Heterocomplexation of Conjugated Polymers in Highly Diluted Solutions. The Journal of Physical Chemistry C. 2019; 123 (27):16596-16601.
Chicago/Turabian StyleLongfei Wu; Belen Nieto-Ortega; Teresa Naranjo; Emilio M. Pérez; Juan Cabanillas-Gonzalez. 2019. "Entropy-Driven Heterocomplexation of Conjugated Polymers in Highly Diluted Solutions." The Journal of Physical Chemistry C 123, no. 27: 16596-16601.
Synthesis, processing, and characterization are reported for a series of tetracyanoplatinate Magnus’ salt (TCN-MS) derivatives—soluble derivatives of the generally intractable Magnus’ green salt—that feature the general structure [Pt(NH2R)4][Pt(CN)4] where R is a branched alkyl group or a ω-phenylalkyl group. In solutions, these coordination compounds generally dissolve on the level of individual ion pairs as shown by X-ray diffraction analysis. To enable the formation of quasi-one-dimensional linear stacks of Pt(II) atoms in thin films, the matrix-assisted assembly is employed, whereby the compounds are codissolved with poly(ethylene oxide) (PEO), followed by film casting, thermally activated assembly, and eventual removal of PEO. Remarkably, assembled TCN-MS inorganic polymers exhibit bright blue-green photoluminescence. A detailed investigation of the assembly process and simultaneously modified solid-state optical properties is performed using a range of microscopy, optical and vibrational spectroscopy, and thermal analysis techniques. Given their unusual combination of optical properties, namely, transparency in the visible region, high photoluminescence quantum efficiencies (up to 13% in first-demonstration samples), and large Stokes shifts (up to 1 eV), TCN-MS derivatives are proposed as a promising class of light-emitting materials for emerging applications in molecular optoelectronics, the potential and challenges of which are discussed.
Aleksandr Perevedentsev; Fabio L. Bargardi; Antoni Sánchez-Ferrer; Nathan J. Cheetham; Ahmad Sousaraei; Stephan Busato; Johannes Gierschner; Begoña Milián-Medina; Raffaele Mezzenga; Reinhold Wannemacher; Juan Cabanillas-Gonzalez; Mariano Campoy-Quiles; Walter R. Caseri. Assembly-Induced Bright-Light Emission from Solution-Processed Platinum(II) Inorganic Polymers. ACS Omega 2019, 4, 10192 -10204.
AMA StyleAleksandr Perevedentsev, Fabio L. Bargardi, Antoni Sánchez-Ferrer, Nathan J. Cheetham, Ahmad Sousaraei, Stephan Busato, Johannes Gierschner, Begoña Milián-Medina, Raffaele Mezzenga, Reinhold Wannemacher, Juan Cabanillas-Gonzalez, Mariano Campoy-Quiles, Walter R. Caseri. Assembly-Induced Bright-Light Emission from Solution-Processed Platinum(II) Inorganic Polymers. ACS Omega. 2019; 4 (6):10192-10204.
Chicago/Turabian StyleAleksandr Perevedentsev; Fabio L. Bargardi; Antoni Sánchez-Ferrer; Nathan J. Cheetham; Ahmad Sousaraei; Stephan Busato; Johannes Gierschner; Begoña Milián-Medina; Raffaele Mezzenga; Reinhold Wannemacher; Juan Cabanillas-Gonzalez; Mariano Campoy-Quiles; Walter R. Caseri. 2019. "Assembly-Induced Bright-Light Emission from Solution-Processed Platinum(II) Inorganic Polymers." ACS Omega 4, no. 6: 10192-10204.
Organic–inorganic lead halide perovskites have emerged rapidly as the most attractive materials for photovoltaics in the last ten years. Intense research has been done on crystal growth and morphology control to improve their power conversion efficiencies. Furthermore, perovskites also show great potential for optical amplification and lasing. Despite the large amount of reports on how processing conditions affect the perovskite light harvesting properties, effects on amplified spontaneous emission (ASE) or lasing performance have attracted considerably less attention. In this work, a detailed study on the ASE performance of methylammonium lead triiodide (MAPbI3) films processed with lead acetate (Pb(Ac)2) as lead source following a one‐step spin coating method and exposed to different post‐deposition conditions is presented. It is found that the use of Pb(Ac)2 instead of lead iodide (PbI2) accelerates the crystal growth and simplifies the fabrication procedure. Even very thin MAPbI3 films (∼70 nm) can sufficiently support optical amplification and lasing in surface emitting distributed‐feedback (DFB) cavities. The facile and highly controllable MAPbI3 film formation observed with Pb(Ac)2 as precursor makes it a preferred choice respect to PbI2 for future perovskite laser diodes. This article is protected by copyright. All rights reserved.
Qi Zhang; Huizhi Sun; Heyi Zhang; Mao Jiang; Xiaodong Wu; Zhiyuan Zhang; Tongyin Yang; Ruidong Xia; Juan Cabanillas-Gonzalez. Facile and Controllable Fabrication of High‐Performance Methylammonium Lead Triiodide Films Using Lead Acetate Precursor for Low‐Threshold Amplified Spontaneous Emission and Distributed‐Feedback Lasers. physica status solidi (RRL) – Rapid Research Letters 2019, 13, 1 .
AMA StyleQi Zhang, Huizhi Sun, Heyi Zhang, Mao Jiang, Xiaodong Wu, Zhiyuan Zhang, Tongyin Yang, Ruidong Xia, Juan Cabanillas-Gonzalez. Facile and Controllable Fabrication of High‐Performance Methylammonium Lead Triiodide Films Using Lead Acetate Precursor for Low‐Threshold Amplified Spontaneous Emission and Distributed‐Feedback Lasers. physica status solidi (RRL) – Rapid Research Letters. 2019; 13 (10):1.
Chicago/Turabian StyleQi Zhang; Huizhi Sun; Heyi Zhang; Mao Jiang; Xiaodong Wu; Zhiyuan Zhang; Tongyin Yang; Ruidong Xia; Juan Cabanillas-Gonzalez. 2019. "Facile and Controllable Fabrication of High‐Performance Methylammonium Lead Triiodide Films Using Lead Acetate Precursor for Low‐Threshold Amplified Spontaneous Emission and Distributed‐Feedback Lasers." physica status solidi (RRL) – Rapid Research Letters 13, no. 10: 1.
Metal nanoclusters (NCs) are considered ideal nanomaterials for biological applications due to their strong photoluminescence, excellent photostability, and good biocompatibility. This study presents a simple and versatile strategy to design proteins, via incorporation of a di‐histidine cluster coordination site, for the sustainable synthesis and stabilization of metal NCs with different metal composition. The resulting protein‐stabilized metal NCs (Prot‐NCs) of gold, silver, and copper are highly photoluminescent and photostable, have a long shelf life, and are stable under physiological conditions. The biocompatibility of the clusters was demonstrated in cell cultures, in which Prot‐NCs showed efficient cell internalization without affecting cell viability or losing luminescence. Moreover, the approach is translatable to other proteins in order to obtain Prot‐NCs for various biomedical applications such as cell imaging or labeling.
Antonio Aires; Irantzu Llarena; Marco Moller; Jose Castro‐Smirnov; Juan Cabanillas‐Gonzalez; Aitziber L. Cortajarena. A Simple Approach to Design Proteins for the Sustainable Synthesis of Metal Nanoclusters. Angewandte Chemie International Edition 2019, 58, 6214 -6219.
AMA StyleAntonio Aires, Irantzu Llarena, Marco Moller, Jose Castro‐Smirnov, Juan Cabanillas‐Gonzalez, Aitziber L. Cortajarena. A Simple Approach to Design Proteins for the Sustainable Synthesis of Metal Nanoclusters. Angewandte Chemie International Edition. 2019; 58 (19):6214-6219.
Chicago/Turabian StyleAntonio Aires; Irantzu Llarena; Marco Moller; Jose Castro‐Smirnov; Juan Cabanillas‐Gonzalez; Aitziber L. Cortajarena. 2019. "A Simple Approach to Design Proteins for the Sustainable Synthesis of Metal Nanoclusters." Angewandte Chemie International Edition 58, no. 19: 6214-6219.