Importance of Long-lifetime n-GaInP for High-efficiency GaInP Solar Cells Grown by MBE

Yukun Sun, Brian D. Li, Ryan D. Hool, Shizhao Fan, Mijung Kim, Minjoo Larry Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a systematic photoluminescence (PL) study on the effects of doping and rapid thermal annealing (RTA) conditions on n- and p-GaInP double-heterostructures (DHs) grown by molecular beam epitaxy (MBE). The steady-state photoluminescence (SSPL) intensity of lightly doped n- and p-GaInP both improve significantly after RTA, while in contrast, heavily doped n-GaInP degrades sharply with RTA. Front-junction (FJ) GaInP cells with this heavily doped n-GaInP emitter were severely damaged after RTA, as expected. Replacing the emitter with lightly doped n-GaInP may help to alleviate the degradation and lead to improved MBE-grown GaInP solar cells.

Original languageEnglish (US)
Title of host publication2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages11-13
Number of pages3
ISBN (Electronic)9781728161150
DOIs
StatePublished - Jun 14 2020
Event47th IEEE Photovoltaic Specialists Conference, PVSC 2020 - Calgary, Canada
Duration: Jun 15 2020Aug 21 2020

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
Volume2020-June
ISSN (Print)0160-8371

Conference

Conference47th IEEE Photovoltaic Specialists Conference, PVSC 2020
Country/TerritoryCanada
CityCalgary
Period6/15/208/21/20

Keywords

  • GaInP
  • MBE
  • double-hetero structures
  • rapid thermal annealing

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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