Results 31 to 40 of about 2,168 (231)

The nature of PDMS affects the results of the immunoassays carried out in microfluidic channels

Biomedical Analysis
Due to various physical or biochemical processes, the nature of polydimethylsiloxane (PDMS) could affect the sensitivity and accuracy of immunoassays performed in microfluidic channels. An appropriate PDMS membrane with high adsorption properties and low
Chengyu Liu, Jinxiong Cheng, Yan Liu, Lei Mou, Yong Xia, Pengfei Wang, Xingyu Jiang   +6 more
doaj   +1 more source

Realization and Use of an IR Camera for Laboratory and On-field Electroluminescence Inspections of Silicon Photovoltaic Modules [PDF]

, 2019
Electroluminescence (EL) is a non-destructive technique, which detects the most common defects in Photovoltaic (PV) modules. High resolution EL images are generally obtained by infrared-sensitive cameras equipped with different semiconductors (indium ...
Malgaroli G., Spertino F., Ciocia A., Carullo A., DI Leo P.   +4 more
core   +1 more source

Development of test setups for evaluating the quality of laser-cut solar cells [PDF]

, 2023
The evolving landscape of the solar cell market creates a critical need for adaptation within this changing industry, posing considerable challenges for manufacturers toaddress dynamic shifts.
Abu Zeitoon, Hussein
core   +1 more source

Efficiency Droop Improvement in InGaN/GaN Light-Emitting Diodes by Graded-Composition Multiple Quantum Wells

IEEE Photonics Journal, 2013
InGaN/GaN light-emitting diodes (LEDs) with a graded-composition multiple quantum well (GQW) were designed not only to investigate the effect of polarization field on the efficiency droop in InGaN/GaN multiple quantum wells (MQWs) but to find out ...
Li-Hong Zhu, Wei Liu, Fan-Ming Zeng, Yu-Lin Gao, Bao-Lin Liu, Yi-Jun Lu, Zhong Chen   +6 more
doaj   +1 more source

Crystalline silicon PV module degradation after 20 years of field exposure studied by electrical tests, electroluminescence, and LBIC [PDF]

Progress in Photovoltaics: Research and Applications, 2015
AbstractStandardized tests to assure the reliability of photovoltaic modules and to detect possible early failures of modules when exposed in the field, due to design flaws or to the use of non‐appropriate materials, have played an important role in the successful growth of photovoltaic market in recent years. In order for this growth to be sustainable
Alberto Pozza, Tony Sample
openaire   +1 more source

Laser-vibrometric ultrasonic characterization of resonant modes and quality factors of Ge membranes [PDF]

, 2014
The vibrations of a single-crystal germanium (Ge) membrane are studied in air and vacuum using laser vibrometry, in order to determine mechanical properties such as Q-factors, tensile stress, anisotropy, and robustness to shock. Resonance modes up to 3:2
Prest, M. J. (Martin J.), Myronov, Maksym, Leadley, D. R. (David R.), Shah, V. A., Rhead, S., Edwards, R. S. (Rachel Sian), Trushkevych, Oksana, Halpin, John E.   +7 more
core   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Method for Estimation and Correction of Perspective Distortion of Electroluminescence Images of Photovoltaic Panels [PDF]

, 2020
The number of photovoltaic panels installed globally is continuously growing, requiring an automatic inspection procedure for operation and maintenance. Drones can be a useful tool to this aim as they enable fast acquisition of various imaging modalities:
Mantel, Claire, Parikh, Harsh Rajesh; id_orcid, Poulsen, Peter B., Benatto, Gisele Alves dos Reis, Forchhammer, Søren, Sera, Dezso, Poulsen, Peter Behrensdorff, Forchhammer, Soren, Villebro, Frederik, Parikh, Harsh Rajesh, Benatto, Gisele A.Dos Reis, Spataru, Sergiu   +11 more
core   +1 more source

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

Advanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk, Yihao Yuan, Augustin Caillas, Amel Saidoun, Roméo Bonnet, Pascal Filloux, Emmanuel Lhuillier, Aloyse Degiron   +7 more
wiley   +1 more source

Electroluminescence Characterization of Recombination in Back Junction Silicon Heterojunction Test Structures: Role of the Inversion Layer

IEEE Journal of Photovoltaics, 2020
Electroluminescence (EL) characterization technique is used to quantify recombination properties in back junction silicon (Si) heterojunction (HJ) solar cell test structures with interdigitated back contact (IBC) emitters and metal contacts. These test structures are three terminal devices that allow the selective biasing and injection of minority ...
Nuha Ahmed, Lei Zhang, Ujjwal Das, Steven Hegedus   +3 more
openaire   +1 more source