National Changhua University of Education Institutional Repository : Item 987654321/12434

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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/12434

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/12434

Title:	Band-Gap Bowing Parameter of the AlxGa1-xN Derived from Theoretical Simulation
Authors:	Kuo, Yen-Kuang;Lin, Wen-Wei
Contributors:	物理學系
Keywords:	AlGaN;Band-gap energy;Band-gap bowing parameter;Numerical study
Date:	2002-01
Issue Date:	2012-07-19T01:46:26Z
Publisher:	The Japan Society ofApplied Physics
Abstract:	The band-gap energy and band-gap bowing parameter of the wurtzite AlGaN alloys are investigated numerically with the CASTEP simulation program. The simulation results suggest that the unstrained band-gap bowing parameter of the wurtzite AlGaN alloys is b = 0.353 ±0.024 eV. The simulation results also show that the width of the AlxGa1-xN top valence band at the Γ point decreases when the aluminum composition increases and has a value of 7.331 eV for the GaN (x=0) and 6.132 eV for the AlN (x=1).
Relation:	Japanese Journal of Applied Physics, 41(1): 73-74
Appears in Collections:	[Department of Physics] Periodical Articles

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