Growth of single-phase Cu(In,Al)Se2 photoabsorbing films by selenization using diethylselenide

M. Sugiyama, A. Umezawa, T. Yasuniwa, A. Miyama, H. Nakanishi, S. F. Chichibu

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Selenization growth of purely single-phase, polycrystalline CuIn1 - xAlxSe2 (0 ≤ x ≤ 0.26) alloy films was demonstrated using a less-hazardous metal-organic selenide, diethylselenide [(C2H5)2Se: DESe], by simple thermal annealing of metal precursor. Approximately 2.0 μm thick alloy films exhibited X-ray diffraction peaks originating exclusively from the chalcopyrite structure. Transitions seen in the low temperature photoluminescence spectra were attributed to characteristic donor-acceptor pair emissions of the state-of-the-art CuIn1 - xAlxSe2 photoabsorbing layers.

Original languageEnglish
Pages (from-to)2175-2177
Number of pages3
JournalThin Solid Films
Volume517
Issue number7
DOIs
Publication statusPublished - 2009 Feb 2

Keywords

  • CIAS
  • Diethylselenide
  • Selenization
  • Solar cell materials

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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