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Magnetoluminescence studies in ordered InGaP{sub 2}

Conference ·
OSTI ID:164928
;  [1];  [2]
  1. Sandia National Labs., Albuquerque, NM (United States)
  2. National Renewable Energy Laboratory, Golden, CO (United States)

Photouminescence measurements on ordered InGap{sub 2} were studied as a function of temperature, laser power density, and magnetic field. The temperature varied between 1.4 and 300 K, the laser power densities ranged from 10 nW/cm{sup 2} to 20 W/cm{sup 2}, and the maximum magnetic field was 13.6 T. The data show both excitonic and band-to-band behavior, depending upon the incident laser power density. A consistent interpretation of all data leads to a type-II valence-band offset between the ordered domains. Finally, a charge transfer model between domains which provides an explanation for intensity dependent energy shifts is discussed.

Research Organization:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC04-94AL85000
OSTI ID:
164928
Report Number(s):
SAND--95-1578C; CONF-951155--10; ON: DE96003072
Country of Publication:
United States
Language:
English