Results 51 to 60 of about 25,063 (315)

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf   +4 more
wiley   +1 more source

Passive solar-energy air-heating wall panels [PDF]

open access: yes, 1987
The development of products which enable passive solar-energy air-heating to be integrated into the heating strategies of public, commercial and industrial buildings is described. These buildings are, in general, only occupied significantly during the
Hobday, R. A.
core  

A Calculation Method of Average Fluid Temperature in Solar Collector

open access: yes发电技术, 2022
The solar collector is an important equipment for photo-thermal conversion. It can be used not only for centralized energy utilization by tower thermal power generation technology, but also for distributed energy utilization by disc thermal power ...
XU Li   +3 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

Study on the thermal collection performance of triangular solar air collector for rural residence heating

open access: yesXi'an Gongcheng Daxue xuebao
The solar air collectors used for heating rural residence are all flat plate types, which are usually installed on the outside of the south wall of rural residence, but the area that can be used to install collectors on the south wall of rural residence ...
JIANG Yan, ZHANG Huan, WAN Zhihao
doaj   +1 more source

Decreasing cost of heat pump heat supply systemby changing first circuit collector

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2020
The aim of this work is to reduce the cost of the heat pump heating system by using a solar collector in the primary circuit of the heat pump. It is known that the price of material and installation of the primary circuit collector is 30% of the total ...
I. Hallyyev, K. H. Gilfanov
doaj   +1 more source

Experimental and numerical study to develop TRANSYS model for an active flat plate solar collector with an internally serpentine tube receiver

open access: yesInternational Journal of Thermofluids, 2022
Flat solar collectors are extensively utilized in various domestic and industrial applications to reduce energy consumption. In this study, an-active flat plate solar collector (FPSC) with an internal absorber tube receiver was fabricated and tested in ...
Ahmed Al-Manea   +5 more
doaj   +1 more source

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

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

Advancing Tandem Organic Solar Cells With Ternary Acceptor Control for High‐Power Modules and Solar‐to‐Ammonia Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Tandem organic solar cells with optimized ternary acceptor engineering achieved a power conversion efficiency of 15.53% and enabled a high‐voltage mini‐module (Voc 6.11 V). Integration into a bias‐free PV‐EC system further demonstrated efficient solar‐to‐ammonia (STA) conversion (97% Faradaic Efficiency, 4± 2% STA efficiency), highlighting scalable ...
Seyeong Song   +11 more
wiley   +1 more source

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