Ultra-thin III-V photovoltaics for space power applications

用于空间电力应用的超薄 III-V 光伏电池

• 批准号: 2104603
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2104603
• 关键词: Ultra; thin; III; photovoltaics; space

The space industry has expanded rapidly in recent years, driven by increasing demand for communications, navigation, precision timing and satellite imagery. Most satellites are powered by III-V photovoltaics which have high solar energy conversion efficiency and are better able to survive the harsh radiation environments in space than their silicon counterparts.Ultra-thin (<200 nm) III-V photovoltaics are an emerging device concept, to increase W/kg while also enabling new fully flexible satellite form factors. This technology offers intrinsic radiation tolerance, to enable extended missions in challenging space environments such as polar earth orbits and Jovian exploration. In order to fully absorb incident solar illumination in an ultra-thin semiconductor film, advanced light management approaches are required such as the use of sub-wavelength nanophotonic scattering structures to couple light into laterally propagating modes. In this way, a device which is optically thick but electrically thin can be fabricated.This project involves the design and hands-on fabrication of semiconductor devices. Techniques will include wafer bonding, chemical etching and lithography (photo-, e-beam and nanoimprint).

近年来，由于对通信，导航，精确时机和卫星图像的需求不断增长，该空间行业迅速扩大。大多数卫星都由IIII-V光伏电动机提供动力，具有高太阳能转换效率，并且比硅在太空中更能生存在太空中的严峻辐射环境中。该技术具有内在的辐射公差，以在极具挑战的太空环境（例如极地地球轨道和Jovian探索）中进行扩展任务。为了完全吸收超薄半导体膜中的太阳照明，需要采用先进的光管理方法，例如使用亚波长纳米光散射结构将光融合到横向传播模式中。这样，可以制造出光学厚但电薄的设备。该项目涉及半导体设备的设计和动手制造。技术将包括晶圆粘结，化学蚀刻和光刻（照片，电子束和纳米印刷）。

项目成果

Ultra-thin GaAs solar cells with nanophotonic metal-dielectric diffraction gratings fabricated with displacement Talbot lithography

采用位移塔尔博特光刻技术制造的具有纳米光子金属电介质衍射光栅的超薄砷化镓太阳能电池

• DOI: 10.1002/pip.3463
• 发表时间: 2021
• 期刊: Research and Applications
• 作者: Sayre L

Design of photonic light-trapping structures for ultra-thin solar cells

• DOI: 10.1117/12.2550136
• 发表时间: 2020-03
• 作者: P. Pearce;L. Sayre;Andrew J. Johnson;L. Hirst;N. Ekins‐Daukes

Ultra-thin GaAs Photovoltaics for Space Applications

用于太空应用的超薄砷化镓光伏发电

• DOI: 10.17863/cam.93389
• 发表时间: 2022
• 作者: Sayre L

Ultra-thin Single-junction GaAs Solar Cells For Extreme Space Environments

适用于极端太空环境的超薄单结砷化镓太阳能电池

• DOI: 10.1109/pvsc45281.2020.9300596
• 发表时间: 2020
• 作者: Sayre L

Cathodoluminescence Study of 68 MeV Proton-Irradiated Ultra-Thin GaAs Solar Cells

68 MeV 质子辐照超薄砷化镓太阳能电池的阴极发光研究

• DOI: 10.1109/pvsc45281.2020.9300748
• 发表时间: 2020
• 作者: Barthel A