Room-temperature photoreflectance of CuAlxGa1-xSe2 alloys

Sho Shirakata, Shigefusa Chichibu, Shigehiro Isomura

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Photoreflectance (PR) spectra have been measured at room temperature for single crystals of CuAlxGa1-xSe2 alloys grown by the chemical vapor transport method. Exciton transition energies related to valence-to-conduction bands at room temperature (EA, EB and EC in eV) have been determined as a function of composition as EA = 2.654x + 1.674(1 - x) - 0.22x(1 - x), EB = 2.767x + 1.749(1 - x) - 0.17x(1 - x) and EC = 2.923x + 1.972(1 - x) - 0.32x(1 - x). The PR results are discussed in terms of PL spectra.

Original languageEnglish
Pages (from-to)7160-7161
Number of pages2
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume36
Issue number12 A
DOIs
Publication statusPublished - 1997 Dec
Externally publishedYes

Keywords

  • Alloy semiconductor
  • Chalcopyrite semiconductor
  • Modulation spectroscopy
  • Photoreflectance
  • Single crystal of CuAlGaSe

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Access to Document

Fingerprint Dive into the research topics of 'Room-temperature photoreflectance of CuAl<sub>x</sub>Ga<sub>1-x</sub>Se<sub>2</sub> alloys'. Together they form a unique fingerprint.

Cite this