Synthesis of Chalcopyrite Nanoparticles via Thermal Decomposition of Metal-Thiolate

• Kino Takamitsu

  Department of Materials Science and Engineering, Nagoya Institute of Technology

• Kuzuya Toshihiro

  Faculty of Urban Science, Meijo University

• Itoh Keiichi

  Department of Materials Science and Engineering, Nagoya Institute of Technology

• Sumiyama Kenji

  Department of Materials Science and Engineering, Nagoya Institute of Technology

• Wakamatsu Takahide

  Faculty of Urban Science, Meijo University

• Ichidate Minoru

  Faculty of Urban Science, Meijo University

Abstract

CuInS₂ nanoparticles (NPs) have been synthesized via thermal decomposition of metal-thiolate in high boiling temperature solvent. This method does not require toxic, unstable and expensive raw materials. Nearly monodispersed NPs with average diameter ranging from 1.8 to 2.8 nm are obtained. The NPs are found to be compositionally copper rich, Cu:In:S=1.6:1.0:1.3. They exhibit size-dependent optical properties such as photoluminescence (PL) and optical absorption, indicating quantum confinement effects. In PL spectra, the stokes-shifts (∼300 meV) from the absorption band edge and their broad PL spectra indicate that PL is ascribed to a donor-acceptor transition. These results demonstrate that chalcopyrite NPs are promising candidates for luminous and solar cell materials.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 49 (3), 435-438, 2008

  The Japan Institute of Metals and Materials

Keywords

• chalcopyrite
• copper indium sulfide
• nanoparticle
• dodecanethiol
• photoluminescence

Details

• CRID: 1390001204249655424
• NII Article ID: 10021144562
• NII Article ID: 130004453926
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.mbw200724
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 9412866
• Web Site: http://id.ndl.go.jp/bib/9412866
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9412866
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/49/3/49_MBW200724/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed