Low-temperature direct conversion of Cu-In films to CuInSe 2 via selenization reaction in supercritical fluid

Takaaki Tomai, Dinesh Rangappa, Itaru Honma

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In this study, we achieve the direct conversion of metallic Cu-In films to compound semiconductor CuInSe 2 films, at quite low temperature around 300 °C using less hazardous metalorganic selenium source in supercritical fluid (SCF). We investigated the effects of temperature and fluid (ethanol) density, and found that supercritical ethanol plays a crucial role in this low-temperature selenization reaction. Such SCF-assisted direct conversion reactions can facilitate large-scale, low-temperature, and rapid synthesis of CuInSe 2 films, which can potentially lead to the low-cost production of solar cells.

Original languageEnglish
Pages (from-to)3268-3271
Number of pages4
JournalACS Applied Materials and Interfaces
Volume3
Issue number9
DOIs
Publication statusPublished - 2011 Sep 28

Keywords

  • CIS/CIGS solar cells
  • and supercritical fluid
  • compound semiconductor
  • conversion reaction

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Low-temperature direct conversion of Cu-In films to CuInSe <sub>2</sub> via selenization reaction in supercritical fluid'. Together they form a unique fingerprint.

Cite this