Electronic and Vibrational Properties of GeSn and SiGeSn Alloys
Vijay D'Costa
Broschiertes Buch

Electronic and Vibrational Properties of GeSn and SiGeSn Alloys

Electronic Properties of GeSn, Vibrational Properties of GeSn, Electronic Properties of SiGeSn,Vibrational Properties of SiGeSn

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GeSn and SiGeSn alloys posses an intriguing potential for IR optoelectronics and photovoltaic applications. This book reports a detailed compositional study of the electronic and vibrational properties of GeSn and SiGeSn alloys. The various optical transition energies in the electronic band structure of the alloys are obtained by spectroscopic ellipsometry and photoreflectance. From the analysis, GeSn alloys are predicted to be a direct gap material for Sn concentration as low as 6-11 %. The bowing of optical transitions in GeSn and SiGeSn alloys is found to scale with the atomic size mismatch...