Results 31 to 40 of about 143,889 (304)

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

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

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

Thermionic photovoltaic energy converter [PDF]

open access: yes, 1985
A thermionic photovoltaic energy conversion device comprises a thermionic diode mounted within a hollow tubular photovoltaic converter. The thermionic diode maintains a cesium discharge for producing excited atoms that emit line radiation in the ...
Chubb, D. L.
core   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

Management and Control of a Fuel Cell, Solar Photovoltaic, and Battery Energy Storage System Linked to a DC Nano Grid [PDF]

open access: yesE3S Web of Conferences
The electric grid can be connected to non-conventional energy sources such as solar cells and fuel cells to effectively meet the distribution- side load requirements.
Mounica Patil   +5 more
doaj   +1 more source

Increased voltage photovoltaic cell [PDF]

open access: yes, 1985
A photovoltaic cell, such as a solar cell, is provided which has a higher output voltage than prior cells. The improved cell includes a substrate of doped silicon, a first layer of silicon disposed on the substrate and having opposite doping, and a ...
Bickler, D. B.   +2 more
core   +1 more source

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

open access: yesAdvanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram   +2 more
wiley   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

open access: yesAdvanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer   +12 more
wiley   +1 more source

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