Optical properties of Ga2Se3:Co2+ single crystals
β Scribed by Kwang-Ho Park; Hyung-Gon Kim; Wha-Tek Kim; Chang-Dae Kim; Hae-Mun Jeong; Kie-Jin Lee; Byong-Hyuok Lee
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 294 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0038-1098
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Bi 2 Se 3-x As x single crystals with the As content of c As = 0 to 2.0x10 19 atoms/cm 3 prepared from the elements of 5N purity by means of a modified Bridgman method were characterized by measurements of infrared reflectance and transmittance. Values of the plasma resonance frequency Ο p , optica
The optical absorption spectrum of b-Ga 2 Se 3 has been measured at pressures up to 7 GPa using a diamond anvil cell. The exciton absorption is observed in the optical absorption spectrum at ambient pressure. With increasing pressure, the exciton line shifts to the higher energy region. From the shi