Optical And Thermoelectrical Studies On Band Edge Structure Of SnTe
2011
Optical transmission properties and Seebeck coefficient of SnTe were measured to study the energy band edge structures of the SnTe. Burstein‐Moss effect in the optical transmission spectra was very small owing to a bumped band edge structure with a large band‐edge density of states. The optical transmission spectra were simulated assuming the bumped band edge structure. Dependence of Seebeck coefficient on the carrier concentration was also calculated theoretically assuming the band edge structure. Experimental Seebeck coefficient of SnTe with relatively small hole concentration increased significantly and agreed well with the theoretical value.
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