Results 41 to 50 of about 4,243 (238)

Enhanced Efficiency of GaAs Single-Junction Solar Cells with Inverted-Cone-Shaped Nanoholes Fabricated Using Anodic Aluminum Oxide Masks

open access: yesInternational Journal of Photoenergy, 2013
The GaAs solar cells are grown by low-pressure metalorganic chemical vapor deposition (LP-MOCVD) and fabricated by photolithography, metal evaporation, annealing, and wet chemical etch processes.
Kangho Kim   +3 more
doaj   +1 more source

Experiment Study on Displacement Damage Effect on GaInP/GaAs/Ge Triple Junction Solar Cell Irradiated by 100 MeV Proton

open access: yesYuanzineng kexue jishu, 2023
GaInP/GaAs/Ge triple junction solar cells have the advantages of high reliability, long life, and high photoelectric conversion efficiency, making them the core components of current spacecraft space power systems. However, the radiation particles in the
WANG Zujun1;YIN Liyuan2;WANG Xinghong3;ZHANG Qi4;TANG Ning5;GUO Xiaoqiang1;SHENG Jiangkun1;GOU Shilong1;YAN Shixing5;LI Chuanzhou5
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

High-efficiency LPE-grown concentrator GaAs solar cells [PDF]

open access: yes, 2022
S.57-60Different designs of concentrator solar cells are presented. The first structure is of p-AlGaAs/p-GaAs/n -GaAs(substrate) type and was grown by the LPE etchback-regrowth method.
Schetter, Christian   +4 more
core  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Homogeneity of the local carrier lifetime in GaAs solar cells [PDF]

open access: yes, 2022
S.1331 ffThe spatial homogeneity of GaAs solar cells was investigated by picosecond luminescence spectroscopy for the first time. The measured standard deviation from the mean lifetime was less than 5 percent indicating a good material homogeneity ...
Bett, Andreas W.   +3 more
core  

Stress Analysis of Flexible GaInP/GaAs/InGaAs Solar Cells Based on Cu Thin‐Film Substrates

open access: yesAdvanced Energy & Sustainability Research, 2023
The stress of GaInP/GaAs/InGaAs triple‐junction (3J) solar cells with different thicknesses of Cu thin‐film substrates is analyzed. X‐ray diffractometer and metallographic examination show that the unstable as‐deposited Cu film undergoes room‐temperature
Zhitao Chen   +10 more
doaj   +1 more source

The Evolution of Aerosol Jet Printing, A Review: Enhancing Material Versatility and Improvements for Next‐Generation Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee   +2 more
wiley   +1 more source

Raising the Efficiency Limit of the GaAs-based Intermediate Band Solar Cell Through the Implementation of a Mololithic Tandem with an AlGaAs top Cell. [PDF]

open access: yes, 2010
The high efficiency limit of the intermediate band solar cell (IBSC) corresponds to the case of using as intermediate band (IB) host material a semiconductor with gap in the range of 2 eV.
García-Linares Fontes, Pablo   +5 more
core   +1 more source

High efficiency AlxGa1-xAs/GaAs solar cells: Fabrication, irradiation and annealing effect [PDF]

open access: yes, 1996
High efficiency AlxGa1-xAs/GaAs heteroface solar cells have been fabricated by an improved multi-wafer squeezing graphite boat liquid phase epitaxy (LPE) technique, which enables simultaneous growth of twenty 2.3 X 2.3cm(2) epilayers in one run.
X.B. Xiang   +11 more
core   +1 more source

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