Design study of a nanowire three-terminal heterojunction bipolar transistor solar cell

Marius H. Zehender, Yang Chen, Enrique Barrigon, Antonio Marti, Magnus T. Borgstrom, Elisa Antolin

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingResearchpeer-review

Abstract

We present an optical design study on a nanowire heterojunction bipolar transistor solar cell. The simple structure of this novel architecture of double-junction solar cell, allows for independent power extraction from the two junctions and makes the nanowire growth easier than in current-matched double-junction solar cells as there is no need for tunnel junctions and only three main semiconductor regions must be grown. We show that the nanowire heterojunction bipolar transistor solar cell design results in an optical performance similar to comparable planar devices, with the nanowires only covering 1/3 of the substrate area. Furthermore, it allows for the growth of lattice-mismatched semiconductor combinations, which increases the detailed balance efficiency limit.

Original languageEnglish
Title of host publication48th IEEE Photovoltaic Specialists Conference, PVSC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1254-1257
Number of pages4
ISBN (Electronic)9781665419222
DOIs
Publication statusPublished - 2021 Jun 20
Event48th IEEE Photovoltaic Specialists Conference, PVSC 2021 - Fort Lauderdale, United States
Duration: 2021 Jun 202021 Jun 25

Publication series

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

Conference

Conference48th IEEE Photovoltaic Specialists Conference, PVSC 2021
Country/TerritoryUnited States
CityFort Lauderdale
Period2021/06/202021/06/25

Subject classification (UKÄ)

  • Nano Technology
  • Condensed Matter Physics

Keywords

  • heterojunction bipolar transistor solar cell
  • multijunction solar cell
  • nanowire
  • three-terminal heterojunction

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