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http://ir.ncue.edu.tw/ir/handle/987654321/12608
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| Title: | Investigation of Band Gaps and Bowing Parameters for Zincblende III-nitride Ternary Alloys |
| Authors: | Liou, Bo-Ting;Yen, Sheng-Horng;Kuo, Yen-Kuang |
| Contributors: | 物理學系 |
| Keywords: | III-nitride semiconductor;Lattice constant;Band gap bowing parameter |
| Date: | 2006-02
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| Issue Date: | 2012-07-19T01:50:24Z
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| Publisher: | SPIE--The International Society for Optical Engineering |
| Abstract: | The zincblende InxGa1-xN, AlxGa1-xN, and AlxIn1-xN alloys are studied by numerical analysis based on first-principles calculations. The results show that the lattice constant of the three alloys obeys the Vegard's law. For InxGa1-xN the direct band gap bowing parameter obtained with the equilibrium lattice constant is 1.890 � 0.097 eV. For AlxGa1-xN the direct and indirect bowing parameters of 0.574 � 0.034 eV and 0.055 � 0.038 eV are obtained, and there is a direct-indirect crossover near x = 0.56. For AlxIn1-xN the direct and indirect bowing parameters of 3.5694 � 0.028 eV and 0.1953 � 0.054 eV are obtained, and there is a direct-indirect crossover near x = 0.807 |
| Relation: | Proceedings of SPIE, 6121: 189-197 (GaN Materials and Devices) |
| Appears in Collections: | [物理學系] 會議論文
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