Jpn. J. Appl. Phys. 36 (1997) pp. 7160-7161  |Next Article|  |Table of Contents|
|Full Text PDF (328K)| |Buy This Article|

Room-Temperature Photoreflectance of CuAlxGa 1-xSe 2 Alloys

Sho Shirakata, Shigefusa Chichibu1 and Shigehiro Isomura

Faculty of Engineering, Ehime University, Matsuyama, Ehime 790, Japan 1Faculty of Science and Technology, Science University of Tokyo, Noda, Chiba 278, Japan

(Received August 6, 1997; accepted for publication October 1, 1997)

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 =2.767 x + 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.

DOI: 10.1143/JJAP.36.7160
KEYWORDS:single crystal of CuAlxGa1-xSe2, alloy semiconductor, chalcopyrite semiconductor, photoreflectance, modulation spectroscopy

|Full Text PDF (328K)| |Buy This Article| Citation:

References | Citing Articles (10)

  1. S. Chichibu, H. Nakanishi, S. Shirakata, S. Isomura, Y. Harada, S. Matsumoto, H. Higuchi and T. Kariya: J. Appl. Phys. 80 (1996) 3338[AIP Scitation].
  2. S. Chichibu, M. Shishikura, J. Ino and S. Matsumoto: J. Appl. Phys. 70 (1991) 1648[AIP Scitation].
  3. K. Mochizuki, E. Niwa and K. Kimoto: Proc. 9th Int. Conf. Ternary and Multinary Compounds, Yokohama, 1993, Jpn. J. Appl. Phys. 32 (1993) Suppl. 32-3, p. 168[JSAP].
  4. S. Shirakata, S. Chichibu, R. Sudo, A. Ogawa, S. Matsumoto and S. Isomura: Jpn. J. Appl. Phys. 32 (1993) L1304[JSAP].
  5. S. Shirakata and S. Chichibu: J. Appl. Phys. 79 (1996) 2043[AIP Scitation].
  6. M. Bettini: Solid State Commun. 13 (1973) 599.
  7. J. L. Shay, B. Tell, H. M. Kasper and L. M. Schiavone: Phys. Rev. B 5 (1972) 5003[APS].
  8. S. Asami and A. Ebina: Res. Rep. Sendai Natl. Coll. Technol. 19 (1989) 123.
  9. S. Wei and A. Zunger: Cryst. Res. Technol. 31 (1996) 81.
  10. J. L. Shay and J. H. Wernick: Ternary Chalcopyrite Semiconductors: Growth, Electronic Properties, and Applications (Pergamon Press, Oxford, 1975).
  11. S. Shirakata and S. Isomura: J. Appl. Phys. 70 (1991) 7051[AIP Scitation].
  12. L. P. Bicelli: J. Appl. Phys. 62 (1987) 4523[AIP Scitation].

|TOP|  |Next Article|  |Table of Contents| |JJAP Home|
Copyright © 2013 The Japan Society of Applied Physics
Contact Information