Formation mechanisms of Cu(In0.7Ga0.3)Se2 nanocrystallites synthesized using hot-injection and heating-up processes

Wei Hsiang Hsu, Hsing I. Hsiang, Yu Lun Chang, Dah Tong Ray, Fu Su Yen

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Nearly monodispersed CuIn0.7Ga0.3Se2 (CIGS) nanocrystals were successfully prepared using the thermal decomposition of copper, indium (In), gallium (Ga), and selenium-oleylamine (OLA) complexes via the heating-up process. The phase formation sequence was CuSe→CuInSe2→CIGS. The CIGS nanocrystals synthesized using the heating-up process exhibited a single chalcopyrite phase and its chemical composition was close to stoichiometric. However, phase separation of the In-rich and Ga-rich phases was found using the hot-injection method due to the difference in reactivity between In-OLA and Ga-OLA complexes.

Original languageEnglish
Pages (from-to)3030-3034
Number of pages5
JournalJournal of the American Ceramic Society
Volume94
Issue number9
DOIs
Publication statusPublished - 2011 Sep

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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