Phase diagrams and optical properties of phosphide, arsenide, and antimonide binary and ternary III-V nanoalloys

被引：28
|
作者：
Guisbiers, G. [1 ]
Wautelet, M. [2 ]
Buchaillot, L. [1 ]
机构：
[1] IEMN, CNRS, UMR8520, F-59652 Villeneuve Dascq, France
[2] Univ Mons, B-7000 Mons, Belgium
来源：
PHYSICAL REVIEW B | 2009年 / 79卷 / 15期
关键词：
aluminium compounds; energy gap; gallium compounds; III-V semiconductors; melting; nanostructured materials; phase diagrams; segregation; surface energy; thermo-optical effects; MELTING TEMPERATURE; SIZE DEPENDENCE; SEMICONDUCTOR NANOCRYSTALS; BIMETALLIC NANOPARTICLES; SMALL PARTICLES; SYSTEMS; SHAPE; NANOSTRUCTURES; SEGREGATION; MISCIBILITY;
D O I：
10.1103/PhysRevB.79.155426
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report a theoretical investigation, at the nanoscale, free of any adjustable parameters, concerning the size, shape, composition, and segregation effects on the melting temperature and energy band gap of zinc-blende III-V semiconductors. The corresponding nanophase diagram is established. From it, the composition and segregation effects on the energy band gap of the ternary semiconducting nanoalloy are deduced. Moreover, the liquid surface energies for AlP, GaP, AlAs, and AlSb have been calculated (0.566 +/- 0.060, 0.510 +/- 0.060, 0.506 +/- 0.060 J/m(2), and 0.441 +/- 0.060 J/m(2), respectively). The information obtained in this study can be used to tune the thermo-optical properties of III-V nanomaterials in nano-optoelectronics.
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页数：8
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