Optical properties of SiAs single crystals
- 1 April 1973
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 44 (4) , 1895-1896
- https://doi.org/10.1063/1.1662471
Abstract
Single crystals of silicon arsenide have been grown by the Bridgman technique. SiAs was found to have an optical energy gap of 2.18±0.05 eV at room temperature and seemed to exhibit a direct optical transition. The temperature coefficient of the energy gap was about −(2.8±0.5)×10−4 eV/K. From the multiple interference fringes of some SiAs samples, the refractive index was calculated. Over a wavelength equal to infinity, it had a value of 3.1±0.1, thus leading to a value of 9.6±0.6 for the high‐frequency dielectric constant. The extinction coefficient near the absorption edge has also been deduced.This publication has 8 references indexed in Scilit:
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