Thin, free-standing Cu2O substrates via thermal oxidation for photovoltaic devices

Samantha S. Wilson, Chengxiang Xiang, Yulia Tolstova, Nathan S. Lewis, Harry A. Atwater

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

1 Citation (Scopus)

Abstract

Cu2O is a promising, earth-abundant alternative to traditional photovoltaic materials (CIGS, CdTe, etc.) because of its low cost, high availability, and straightforward processing. We report a method to fabricate Cu2O substrates with thicknesses of less than 20 microns which may be handled and processed into devices. Development of thinner Cu2O substrates is essential as extrinsic doping has been impossible thus far, and intrinsic Cu2O is highly resistive. Hall measurements indicate that the substrates had Hall mobilities of 10-20 cm2V-1s -1 and carrier concentrations on the order of 1014 cm 3. Current-voltage characteristics of these Cu2O substrates were derived from liquid junction Schottky barrier device measurements which indicate open circuit voltages of Voc 600 mV.

Original languageEnglish
Title of host publicationProgram - 38th IEEE Photovoltaic Specialists Conference, PVSC 2012
Pages3191-3194
Number of pages4
DOIs
Publication statusPublished - Nov 26 2012
Event38th IEEE Photovoltaic Specialists Conference, PVSC 2012 - Austin, TX, United States
Duration: Jun 3 2012Jun 8 2012

Publication series

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

Other

Other38th IEEE Photovoltaic Specialists Conference, PVSC 2012
CountryUnited States
CityAustin, TX
Period6/3/126/8/12

Keywords

  • copper compounds
  • materials handling
  • oxygen
  • photovoltaic cells and semiconductor materials

ASJC Scopus subject areas

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

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  • Cite this

    Wilson, S. S., Xiang, C., Tolstova, Y., Lewis, N. S., & Atwater, H. A. (2012). Thin, free-standing Cu2O substrates via thermal oxidation for photovoltaic devices. In Program - 38th IEEE Photovoltaic Specialists Conference, PVSC 2012 (pp. 3191-3194). [6318256] (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2012.6318256