Study of the sub-bandgap absorption and the optical transitions in CuInSe2 polycrystalline thin films

Kavcar N.

SOLAR ENERGY MATERIALS AND SOLAR CELLS, cilt.52, ss.183-195, 1998 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 52
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1016/s0927-0248(97)00287-0
  • Dergi Adı: SOLAR ENERGY MATERIALS AND SOLAR CELLS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.183-195
  • Anahtar Kelimeler: optical transitions, CuInSe2, absorption coefficient, photon energy, SOLAR-CELLS
  • Dokuz Eylül Üniversitesi Adresli: Hayır

Özet

Optical transitions near the fundamental band edge are studied for CuInSe2 films having various Cu/In ratios by analysing the variations of the absorption coefficient with incident photon energy. The results indicate different transitions depending upon the Cu/In ratio. There are sub-bandgap absorption for near stoichiometric and Cu-rich films. The results are compared to some literature data. (C) 1998 Elsevier Science B.V. All rights reserved.