24% Single‐Junction GaAs Solar Cell Grown Directly on Growth‐Planarized Facets Using Hydride Vapor Phase Epitaxy

Author:

Braun Anna K.1ORCID,Boyer Jacob T.2,Schulte Kevin L.2ORCID,McMahon William E.2,Simon John2ORCID,Perna Allison N.1,Packard Corinne E.12ORCID,Ptak Aaron J.2ORCID

Affiliation:

1. Colorado School of Mines Golden CO 80401 USA

2. National Renewable Energy Laboratory Golden CO 80401 USA

Abstract

AbstractA 24%‐efficient single‐junction GaAs solar cell grown directly on a faceted, spalled (100) GaAs substrate after in situ planarization growth by hydride vapor phase epitaxy (HVPE) is achieved. Controlled spalling, a promising low‐cost substrate reuse technique, produces large facets in (100)‐oriented GaAs substrates due to the orientation of the fracture planes used for lift‐off. Planarization by HVPE offers a path toward direct use of these spalled substrates without costly polishing steps. Here, the growth rate anisotropy enabling planarization arising from diffusion and differences in the adsorption of growth species on {n11}B‐type facets relative to (100) is determined. Consecutive planarization and device growth that results in a solar cell with a minimal performance difference relative to a control cell grown on an epitaxy‐ready substrate are demonstrated. These results show that controlled spalling coupled with HVPE planarization is a viable pathway for lowering the cost of III‐V photovoltaics.

Funder

Solar Energy Technologies Office

National Science Foundation

Publisher

Wiley

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment

Reference39 articles.

1. Solar cell efficiency tables (Version 61)

2. T. J.Silverman M. G.Deceglie B.Marion S.Cowley B.Kayes S.Kurtz 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC) IEEE Tampa FL USA2013 103.

3. Performance of III–V Solar Cells as Indoor Light Energy Harvesters

4. Development of high‐efficiency and low‐cost solar cells for PV‐powered vehicles application

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3