Giampiero de Cesare

Prof. Giampiero de Cesare

Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, Rome, Lazio, Italy
orcid

Research Focus & Metrics

Academic Career Length

37Years (1990-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 October 2016 in Analytical and Bioanalytical Chemistry
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MZMartina Zangheri
Martina Zangheri
FNFabio Di Nardo
Fabio Di Nardo
Mara MirasoliMara Mirasoli
Mara Mirasoli
Department ChemistryDepartment Chemistry
Department Chemistry
ANAugusto Nascetti
Augusto Nascetti
ARAldo Roda
Aldo Roda

1 August 2006 in Solar Energy
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Giampiero de CesareGiampiero de Cesare
Giampiero de Cesare
Domenico CaputoDomenico Caputo
Domenico Caputo
Augusto NascettiAugusto Nascetti
Augusto Nascetti

1 September 1996 in IEEE Transactions on Electron Devices
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Domenico CaputoDomenico Caputo
Domenico Caputo
Giampiero de CesareGiampiero de Cesare
Giampiero de Cesare
FIF. Irrera
F. Irrera
FPF. Palma
F. Palma
In this paper, we extensively investigate a family of solar-blind thin-film photodetectors optimized for the ultraviolet spectrum (UV). The devices are p-i-n structures made of hydrogenated amorphous silicon (a-Si:H) and silicon carbide (a-SiC:H) on a glass substrate. At room temperature the photodetectors exhibit values of quantum efficiency of 20% at /spl lambda/=187 nm, and are transparent to visible radiation. The excellent sensitivity of the device at short wavelengths is explained within the framework of a diffusive model of transport, taking into account the effects of hot carrier relaxation. The rejection of visible light is obtained with an appropriate design of the energy gap and intrinsic layer thickness. The great advantage of this technology lies in the possibility to produce low-cost, large-area arrays of photodetectors.

1 July 2016 in Sensors and Actuators B: Chemical
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FCFrancesca Costantini
Francesca Costantini
CSCristiana Sberna
Cristiana Sberna
GPGiulia Petrucci
Giulia Petrucci
MRMassimo Reverberi
Massimo Reverberi
FDFabio Domenici
Fabio Domenici
Domenico CaputoDomenico Caputo
Domenico Caputo

1 June 2004 in Journal of Non-Crystalline Solids
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MTM. Tucci
M. Tucci
Giampiero de CesareGiampiero de Cesare
Giampiero de Cesare

20 February 2006 in Applied Physics Letters
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Giampiero de CesareGiampiero de Cesare
Giampiero de Cesare
Domenico CaputoDomenico Caputo
Domenico Caputo
Augusto NascettiAugusto Nascetti
Augusto Nascetti
CGCarlotta Guiducci
Carlotta Guiducci
BRB. Riccò
B. Riccò
In this letter, we show the results achieved using a hydrogenated amorphous silicon photosensor for a “label-free” deoxyribonucleic acid (DNA) analysis based on the measurements of the absorbance in the ultraviolet range. The optimization of the sensor structure allowed us to bring the detection limit for a 30-mer DNA sample down to 1nM×cm , limited by the experimental setup. Taking advantage of the hypochromic effect, we also demonstrated the detection of single- and double-stranded DNA molecules in a melting experiment. From the noise characterization of our setup, we estimated the minimum DNA absorbance required to detect the occurrence of a hybridization/separation process to be below 10−3 .