Results 31 to 40 of about 47,846 (307)

Synthesis of thienyl analogues of PCBM and investigation of morphology of mixtures in P3HT

open access: yesBeilstein Journal of Organic Chemistry, 2008
Novel [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) analogues containing benzo[b]thiophene (3a, 3b) and thieno[3,2-b]thiophene (3c, 3d) were synthesized and characterized.
Fukashi Matsumoto   +3 more
doaj   +1 more source

Dynamic Characteristics and Stability of the Photovoltaic Cell Under Laser Intensity or Load Disturbance in Laser Wireless Power Transmission System

open access: yesIEEE Access, 2023
In laser wireless power transmission (LWPT) system, the dynamically varying laser intensity or load on the photovoltaic (PV) cell may result in significant decrease of the power, efficiency and stability.
Zhenyang Xiong   +4 more
doaj   +1 more source

Integrating photovoltaic cells into decorative architectural glass using traditonal glasspainting techniques and fluorescent dyes

open access: yes, 2015
Photovoltaic cells can be integrated into decorative glass, providing a showcase for this renewable technology, whilst assisting in the creation of sustainable architecture through generation of electricity from the building surface.
B. S. Richards   +11 more
core   +1 more source

Photovoltaic sample-and-hold circuit enabling MPPT indoors for low-power systems [PDF]

open access: yes, 2012
Photovoltaic (PV) energy harvesting is commonly used to power autonomous devices, and maximum power point tracking (MPPT) is often used to optimize its efficiency. This paper describes an ultra low-power MPPT circuit with a novel sample-and-hold and cold-
Weddell, Alex S.   +2 more
core   +1 more source

Optimization of Bulk Heterojunction Photovoltaic Structures with Heterocyclic Derivatives

open access: yesCrystals, 2023
Photovoltaic structures of the bulk heterojunction type were fabricated, in which derivatives of N,N-diethylamine-3-Methyl-1-Phenyl-1H-pyrazolo[3,4-b]quinoxalines were used as the active layer.
Katarzyna Wojtasik   +2 more
doaj   +1 more source

Segmentation of cell-level anomalies in electroluminescence images of photovoltaic modules

open access: yes, 2021
Publisher Copyright: © 2021 International Solar Energy SocietyIn the operation & maintenance (O&M) of photovoltaic (PV) plants, the early identification of failures has become crucial to maintain productivity and prolong components’ life. Of all defects,
Quartulli, Marco   +5 more
core   +1 more source

Interfacial Modulation for High‐Efficiency Large‐Area Organic Photovoltaics and Perovskite‐Organic Tandem Solar Modules

open access: yesAdvanced Functional Materials, EarlyView.
Self‐assembled monolayers (SAMs) are promising hole‐transporting materials for organic photovoltaics (OPVs), but suffer from self‐aggregation and poor large‐area uniformity. We find that interfacial modification using nicotinic hydrazide can eliminate the residual SAM aggregates by forming energetically favorable complexes, yielding uniform SAM.
Seongwon Yoon   +10 more
wiley   +1 more source

Hybrid Propulsion Systems for Remotely Piloted Aircraft Systems

open access: yesAerospace, 2018
The development of more efficient propulsion systems for aerospace vehicles is essential to achieve key objectives. These objectives are to increase efficiency while reducing the amount of carbon-based emissions.
Mithun Abdul Sathar Eqbal   +3 more
doaj   +1 more source

Energy-Optimal Flight Strategy for Solar-Powered Aircraft Using Reinforcement Learning With Discrete Actions

open access: yesIEEE Access, 2021
The low efficiency of photovoltaic cells limits the energy absorption of high-altitude long-endurance (HALE) solar-powered unmanned aircraft vehicles (UAVs), which dramatically weakens the capacity for long-endurance missions. Therefore, finding a method
Wenjun Ni, Di Wu, Xiaoping Ma
doaj   +1 more source

Quantum wells in photovoltaic cells [PDF]

open access: yes, 2003
Draft chapter 5 of "Next Generation Photovoltaics High Efficiency through Full Spectrum Utilization ...
Rohr, C   +6 more
openaire   +2 more sources

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