Results 31 to 40 of about 4,612,849 (257)

A review of international and local developments in photovoltaic technology and economics for developing areas [PDF]

, 1989
Bibliography: leaves 251-258.The experiences with photovoltaic systems in developing areas in the Third World, generally, and in South Africa, in particular, are assessed with respect to technical and economic performance.
Sinclair, David John
core   +1 more source

Electrical and thermal performance analysis of hybrid photovoltaic/thermal water collector using meta-heuristic optimization

Journal of Electrical Systems and Information Technology
The photovoltaic/thermal (PV/T) flat-panel technology has numerous advantages over PV modules and separately mounted solar thermal collectors regarding overall effectiveness and space-saving.
Heba S. Aggour, Doaa M. Atia, Hanaa M. Farghally, M. Soliman, M. Omar   +4 more
doaj   +1 more source

Enhancing Li tolerance via Ag doping in high-efficiency CZTSSe solar cells

Nano Research
Element doping has been widely recognized as an important strategy for improving the power conversion efficiency (PCE) of kesterite (CZTSSe) solar cells. Single-element doping has demonstrated substantial improvements in device performance.
Yue Liu, Rutao Meng, Jiabin Dong, Han Xu, Xuejun Xu, Zixiu Cao, Jincheng Zhang, Haoran Li, Yi Zhang   +8 more
doaj   +1 more source

Conversion of Radiophotoluminescence Irradiation into Electricity in Photovoltaic Cells. A Review of Theoretical Considerations and Practical Solutions

Energies, 2021
This review presents the current state of the knowledge regarding the use of radioactive sources to generate photonic light in scintillators as converters of ionizing radiation to electricity in photovoltaic cells. The possibility of using the phenomenon
Agnieszka Iwan, Witalis Pellowski, Krzysztof A. Bogdanowicz   +2 more
doaj   +1 more source

A combined optical, thermal and electrical performance model of a Building Integrated Photovoltaic/Thermal Concentrator (BIPVTC) [PDF]

, 2011
The electrical output of concentrating photovoltaic devices is significantly affected by the temperature of the photovoltaic cells. The ability to actively cool photovoltaic cells under concentrated radiation allows their electrical efficiency to be ...
Carson, James K., Kunnemeyer, R, Anderson, TN, Carson, JK, Künnemeyer, Rainer, Duke, Mike, Anderson, Timothy Nicholas, Duke, M   +7 more
core   +1 more source

Nanostructured Electrodes for Organic Solar Cells: Analysis and Design Fundamentals [PDF]

, 2012
Nanostructured electrodes (NEs) improve optical absorption and charge collection in photovoltaic (PV) devices. Traditionally, the electrodes have been designed exclusively for higher optical absorption.
Alam, Muhammad A., Black, Charles, Ray, Biswajit, Khan, Mohammad R.   +3 more
core   +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

Self-Powered Au/ReS₂ Polarization Photodetector with Multi-Channel Summation and Polarization-Domain Convolutional Processing

Sensors
Polarization information is essential for material identification, stress mapping, biological imaging, and robust vision under strong illumination, yet conventional approaches rely on external polarization optics and active biasing, which are bulky ...
Ruoxuan Sun, Guowei Li, Zhibo Liu
doaj   +1 more source

A High Power-Conversion-Efficiency Voltage Boost Converter with MPPT for Wireless Sensor Nodes

Sensors, 2021
A high power-conversion-efficiency voltage boost converter with MPPT for wireless sensor nodes (WSNs) is proposed in this paper. Since tiny wireless sensor nodes are all over complex environments, an efficient power management system (PMS) must be ...
Xiwen Zhu, Qiang Fu, Ruimo Yang, Yufeng Zhang   +3 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