Reaction pathway insights into the solvothermal preparation of CuIn 1-xGaxSe2 nanocrystalline materials

Christopher L. Exstrom, Scott A. Darveau, Andrea L. Martinez-Skinner, Matt Ingersoll, Jiri Olejnicek, Anatole Mirasano, Adam T. Haussler, James Huguenin-Love, Chad Kamler, Martin Diaz, N. J. Ianno, R. J. Soukup

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

1 Scopus citations

Abstract

Reaction pathway investigations of the solvothermal preparation of nanocrystalline CuIn1-xGaxSe2 in triethylenetetramine reveal the early formation of a previously unreported Cu2-xSe(s) intermediate. Over 24 hours, this reacts with In and Se species to form CuInSe2(s). If Ga is present, the reaction proceeds over an additional 48 hours to form CuIn1-xGaxSe 2. Adding ammonium halide salts reduces the CuInSe2 formation time to as little as 30 minutes. It is proposed that in these cases, Cu2-xSe particle growth is limited via a competitive Cu-halide complex formation. The smaller Cu2-xSe particles may react and form CuInSe2 more rapidly. A reaction pathway scheme consistent with experimental results and previous literature reports is proposed.

Original languageEnglish (US)
Title of host publication33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
DOIs
StatePublished - 2008
Event33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 - San Diego, CA, United States
Duration: May 11 2008May 16 2008

Publication series

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

Other

Other33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
CountryUnited States
CitySan Diego, CA
Period5/11/085/16/08

ASJC Scopus subject areas

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

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    Exstrom, C. L., Darveau, S. A., Martinez-Skinner, A. L., Ingersoll, M., Olejnicek, J., Mirasano, A., Haussler, A. T., Huguenin-Love, J., Kamler, C., Diaz, M., Ianno, N. J., & Soukup, R. J. (2008). Reaction pathway insights into the solvothermal preparation of CuIn 1-xGaxSe2 nanocrystalline materials. In 33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 [4922729] (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2008.4922729