Record number :
1786325
Title of article :
Optical energy gaps of undoped and Co-doped ZnIn2Se4 single crystals
Author/Authors :
Choe، نويسنده , , Sung-Hyu، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 2009
Pages :
3
From page :
1
To page :
3
Abstract :
Single crystals of undoped and Co-doped ZnIn2Se4 were grown by the vertical Bridgman technique. The optical energy gaps of the single crystals were investigated in the temperature range of 10–300 K from the optical absorption measurements. The indirect optical energy gaps of the single crystals were found to be 1.624 eV for undoped ZnIn2Se4 and 1.277 eV for Co-doped one at 300 K. Also, the direct optical energy gaps were given by 1.774 and 1.413 eV for undoped ZnIn2Se4 and co-doped one, respectively. The temperature dependence of the optical energy gaps was well fitted by the Varshni equation.
Keywords :
Temperature dependence of optical energy gap , Co-doped ZnIn2Se4 , Indirect energy gap , Optical energy gap
Journal title :
Current Applied Physics
Journal title :
Current Applied Physics
Serial Year :
2009
Link To Document :
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