Calculation of the thermodynamic voltage limit of CdSeTe solar cells

Arthur Onno, Adam Danielson, Carey Reich, Anna Kindvall, William Weigand, Amit Munshi, Siming Li, Darius Kuciauskas, Walajabad Sampath, Zachary Holman

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

Abstract

The first step to understand the origin of losses in any photovoltaic solar cell is to determine the fundamental thermodynamic efficiency and voltage limits of such a device. In this contribution, we detail techniques to calculate the voltage limit in the case of cadmium selenium telluride (CdSeTe) solar cells, and how approaches based on bandgap alone - i.e., the Shockley-Queisser approach with step-function absorptance - can overestimate the thermodynamic open-circuit voltage limit V_{oc,ideal}. This is particularly true for arsenic-doped samples, which tend to exhibit below-bandgap absorptance.

Original languageEnglish (US)
Title of host publication2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages535-537
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
CountryCanada
CityCalgary
Period6/15/208/21/20

Keywords

  • absorptance
  • cadmium selenium telluride
  • photoluminescence
  • thermodynamic voltage limit

ASJC Scopus subject areas

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

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