Results 61 to 70 of about 236,141 (318)

A Density Peak-Based Clustering Approach for Fault Diagnosis of Photovoltaic Arrays

open access: yesInternational Journal of Photoenergy, 2017
Fault diagnosis of photovoltaic (PV) arrays plays a significant role in safe and reliable operation of PV systems. In this paper, the distribution of the PV systems’ daily operating data under different operating conditions is analyzed.
Peijie Lin   +5 more
doaj   +1 more source

Phase Evolution Kinetics in Additive‐Free 19.75% Organic Photovoltaics Empowered by Solvent Vapor Annealing

open access: yesAdvanced Functional Materials, EarlyView.
Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv   +20 more
wiley   +1 more source

Stability of Polymer Solar Cells

open access: yesAdvanced Materials, 2011
AbstractOrganic photovoltaics (OPVs) evolve in an exponential manner in the two key areas of efficiency and stability. The power conversion efficiency (PCE) has in the last decade been increased by almost a factor of ten approaching 10%. A main concern has been the stability that was previously measured in minutes, but can now, in favorable ...
M. Jørgensen   +5 more
openaire   +4 more sources

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

open access: yesAdvanced 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   +7 more
wiley   +1 more source

Monolithic cells for solar fuels

open access: yesChem. Soc. Rev., 2014
A tutorial review explaining the many processes occurring in photoelectrochemical cells for solar fuel production, and prospects for future developments.
Rongé, Jan   +8 more
openaire   +4 more sources

Nanostructured Electrodes for Organic Solar Cells: Analysis and Design Fundamentals

open access: yes, 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.   +3 more
core   +1 more source

Longterm stability of efficient inverted P3HT:PCBM solar cells

open access: yes, 2022
S.491-496We report on the longterm stability of 1.5-3% efficient inverted P3HT:PCBM solar cells sealed with glass plates, which have been glued onto the solar cells.
Würfel, Uli   +2 more
core   +1 more source

Pickering‐Engineered Microparticles for Magnetically Guided Motion and Light‐Triggered Catalysis

open access: yesAdvanced Functional Materials, EarlyView.
Magnetically responsive wax microparticles stabilized by hematite cubes through the Pickering emulsification strategy are developed, showing controlled size, motion, and light‐activated catalytic activity. Annealing under a magnetic field enhances their mobility and steering.
Chiara Ferlito   +6 more
wiley   +1 more source

Biochar enhances the remediation of fluorene and Cd(II) co-contamination by Burkholderia sp. FM-2

open access: yesEcotoxicology and Environmental Safety
This study investigated the fluorene degradation ability and metabolic pathway of Burkholderia sp. FM-2. The FM-2 demonstrated a 72.16 % degradation rate of 300 mg/L fluorene over a period of three days.
Jiajun Ma   +6 more
doaj   +1 more source

Analysis of Chromatic Aberration Effects in Triple-Junction Solar Cells Using Advanced Distributed Models

open access: yes, 2011
The consideration of real operating conditions for the design and optimization of a multijunction solar cell receiver-concentrator assembly is indispensable.
Espinet González, Pilar   +8 more
core   +1 more source

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