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HVPE-Grown GaAs//Si Tandem Device Performance

  • Kaitlyn Vansant
  • , John Simon
  • , Manuel Schnabel
  • , John Geisz
  • , Kevin Schulte
  • , Aaron Ptak
  • , Michelle Young
  • , David Guiling
  • , Waldo Olavarria
  • , Michael Rienaecker
  • , Henning Schulte-Huxel
  • , Raphael Niepelt
  • , Sarah Kajari-Schroeder
  • , Rolf Brendel
  • , Robby Peibst
  • , Adele Tamboli

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Abstract

The performance of III-V//Si tandem devices has successfully exceeded the theoretical efficiency limit of single junction Si devices (29.4%) yet the costs associated with these high-efficiency tandem devices are still too high to compete with today's conventional Si solar cells. Recent cost modeling efforts suggest that hydride vapor phase epitaxy (HVPE) could be adopted as an alternative growth technique to metal-organic chemical vapor deposition (MOCVD) because the costs of HVPE are substantially lower and the performance of devices fabricated from HVPE materials are continuously improving. This study reports on our first results of a HVPE-grown GaAs top cell mechanically stacked on a Si bottom cell.

Original languageEnglish
Title of host publication2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2776-2778
Number of pages3
ISBN (Electronic)9781538685297
DOIs
Publication statusPublished - 26 Nov 2018
Externally publishedYes
Event7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States
Duration: 10 Jun 201815 Jun 2018

Conference

Conference7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Country/TerritoryUnited States
CityWaikoloa Village
Period10 Jun 201815 Jun 2018

UN Sustainable Development Goals (SDGs)

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • HVPE
  • MOCVD
  • multi-junction solar cells
  • photovoltaic cells
  • Solar energy
  • tandems

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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