Results 51 to 60 of about 53,881 (207)

Research of Power Output Efficiency by Solar Photovoltaics System in Kurume City [PDF]

, 2015
The purpose of this study is to clarify the relationship between the output efficiency and solar radiation by solar photovoltaics systems. Three parameters were calculated using the measured values from a solar photovoltaics system situated on the roof ...
55, ノノムラ, ヨシタミ, 野々村, 善民, NONOMURA, Yoshitami, 54   +4 more
core  

Degradation Mechanism Due to Water Ingress Effect on the Top Contact of Cu(In,Ga)Se₂ Solar Cells

Energies, 2020
The impact of moisture ingress on the surface of copper indium gallium diselenide (CIGS) solar cells was studied. While industry-scale modules are encapsulated in specialized polymers and glass, over time, the glass can break and the encapsulant can ...
Deewakar Poudel, Shankar Karki, Benjamin Belfore, Grace Rajan, Sushma Swaraj Atluri, Sina Soltanmohammad, Angus Rockett, Sylvain Marsillac   +7 more
doaj   +1 more source

Forward‐Biased Perovskite Photodiodes for In‐Sensor Optical Change Sensing

Advanced Functional Materials, EarlyView.
A forward‐biased perovskite photodiode is introduced as an in‐sensor analog preprocessing unit that uses current balancing between photocurrent and injection current to generate optical changes relative to programmable optical reference levels. The device directly converts reference‐relative optical changes into bipolar current signals, enabling sensor‐
Eungseon Yeon, Je‐Jun Lee, Somin Yun, Sangin Hahn, Chanhyeok Kim, Jinsoo Park, Jung Pyo Hong, Seong‐Jun Han, Jung Woo Kim, Jeong Hwan Lee, Subin Jeon, Youngmin Kim, Gunuk Wang, Hanul Min, Do Kyung Hwang   +14 more
wiley   +1 more source

Ultra-Low-Power Indoor Light Harvesting and Solar Cell Characterization System

IEEE Access
In this study, we present a development of a solar-powered Internet-of-Things (IoT) device, that incorporates both light energy harvesting and solar cell monitoring, which we demonstrate by long term monitoring of a single perovskite solar cell in office-
Darjo Ursic, Matija Pirc, Marko Jost, Marko Topic, Marko Jankovec   +4 more
doaj   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

Advanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski, Eunika Zielony, Adrian Kaim, Ewa Przeździecka   +3 more
wiley   +1 more source

Downshifting Encapsulant: Optical Simulation Evaluation of the Solution to Ultraviolet‐Induced Degradation in Silicon Heterojunction Solar Cells

Advanced Energy & Sustainability Research
Ultraviolet (UV)‐induced degradation (UVID) poses a significant challenge for the prospective mass production of silicon heterojunction (SHJ) solar cells, known for their high efficiency. In this study, the magnified impact of UV radiation when employing
Binbin Xu, Karsten Bittkau, Alexander Eberst, Kai Zhang, Yanxin Liu, Jinli Yang, Weiyuan Duan, Muhammad Ainul Yaqin, Vladimir Smirnov, Chunlan Zhou, Wenjing Wang, Xiaohua Xu, Andreas Lambertz, Uwe Rau, Kaining Ding   +14 more
doaj   +1 more source

Hopping‐Mediated Zero‐Bias Photocharge Retention in Solution‐Processed Van Der Waals Heterostructures

Advanced Functional Materials, EarlyView.
Liquid–liquid interface assembly enables the fabrication of solution‐processed MoS2 and WSe2 centimeter‐scale, nanometer‐thick type‐II heterostructures on paper. Interfacial charge separation and hopping‐limited recombination produce rectification and persistent photocharge retention at zero bias.
Aniello Pelella, Andrea Sessa, Yi‐Chen Tsai, Xuzhao Liu, Abdul Mannan, George Greaves, Yahya Saboon, Ben Spencer, Antonio Di Bartolomeo, Cinzia Casiraghi, Jessica Boland, Alessandro Grillo   +11 more
wiley   +1 more source

The influence of triplet states in organic photovoltaics [PDF]

, 2023
Triplet formation is generally regarded as an energy loss process in organic photovoltaics. Understanding charge photogeneration and triplet formation mechanisms in non-fullerene acceptor blends is essential for deepening understanding of photophysics in
Clarke, Tracey
core  

Photovoltaic Stimulation of Mouse and Pig Retina With Pyrolytic Carbon Microelectrodes Integrated on High‐Density Silicon Solar Cell Arrays

Advanced Healthcare Materials, EarlyView.
In this study, we fabricate photovoltaic retinal implants with pyrolytic carbon electrodes and test their ability to stimulate mouse and pig retinas when illuminated with near‐infrared light. We find increased spiking activity in both animal models compared to spontaneous activity and TTX controls and analyze the spike amplitude, latency and frequency.
Akihiro Matsumoto, Pratik Kusumanchi, Jesper Guldsmed Madsen, Asbjørn Cortnum Jørgensen, Gisele Alves dos Reis Benatto, Sune Thorsteinsson, Peter Behrensdorff Poulsen, Keisuke Yonehara, Toke Bek, Stephan Sylvest Keller, Rasmus Schmidt Davidsen   +10 more
wiley   +1 more source

Bulk and surface recombination properties in thin film semiconductors with different surface treatments from time-resolved photoluminescence measurements

Scientific Reports, 2019
The knowledge of minority carrier lifetime of a semiconductor is important for the assessment of its quality and design of electronic devices. Time-resolved photoluminescence (TRPL) measurements offer the possibility to extract effective lifetimes in the
Thomas P. Weiss, Benjamin Bissig, Thomas Feurer, Romain Carron, Stephan Buecheler, Ayodhya N. Tiwari   +5 more
doaj   +1 more source