The Transactions of the Korean Institute of Electrical Engineers P (전기학회논문지P)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Optical and Electrical Property of $\beta$-Phases $In_2Te_3$ Single Crystal by Vertical Bridgman Method

수직 Bridgman법으로 제작한 $\beta-In_2Te_3$ 단결정의 광학적 전기적 특성

  • Published : 2009.12.01
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Abstract

The $\beta-In_2Te_3$ single crystal was grown by vertical Bridgman method. The $\beta-In_2Te_3$ single crystal had a face centered cubic(fcc) structure. The lattice constants were found to be $a\;=\;0.617\;{\AA}$. The direct optical energy gap ($E_g$) was found to be 1.11 ev at 300 K. Raman spectra peak of $\beta-In_2Te_3$ single crystal showed the low $E_{LO}$ mode at $105\;cm^{-1}$. The electrical conduction type was measured by the thermal method and was p-type. The electrical conductivity was found to be $1.8\;{\times}\;10^{-2}\;{\Omega}^{-1}cm^{-1}$ at 300 K. The activation energy was found to be 0.51 eV.

Keywords

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