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1. 内蒙古大学 物理科学与技术学院
2. 内蒙古师范大学 物理与电子信息学院
3. 内蒙古农业大学 理学院
收稿:2008-11-13,
修回:1900-1-2,
网络首发:2009-08-30,
纸质出版:2009-08-30
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张 敏, 闫祖威. 压力下GaN/Ga1-xAlxN量子点中杂质态的界面效应[J]. 发光学报, 2009,30(4):529-534.
ZHANG Min, YAN Zu-wei. Interface Effect on the Impurity State in a GaN/Ga1-xAlxN Quantum Dot under Pressure[J]. Chinese Journal of Luminescence, 2009, 30(4): 529-534.
考虑界面处导带弯曲
流体静压力以及有效质量随量子点位置的依赖性
采用变分法以及简化相干势近似
研究了无限高势垒GaN/Ga
1-x
Al
x
N球形量子点中杂质态的界面效应
计算了杂质态结合能随量子点尺寸、电子面密度以及压力的变化关系。结果表明
结合能随压力的增大呈线性增加的趋势
有效质量位置的依赖性以及导带弯曲对结合能有不容忽视的影响。
paper
. Oyoko H O, Duque C A, Porras-Montenegro N. Uniaxial stress dependence of the binding energy of shallow donor impurities in GaAs(Ga,Al)As quantum dots [J]. J. Appl. Phys., 2001, 90 (2):819-823.
. Rosas R, Marin J L, Riera R. Hydrogenic impurities in spherical quantum dots in a magnetic field [J]. J. Appl. Phys., 2001, 90 (5):2333-2337.
. Zhang M, Ban S L. Impurity states in semiconductor GaAs/AlxGa1-xAs heterojunction with an external magnetic field [J]. Chin. J. Lumin. (发光学报), 2004, 25 (4):369-374 (in Chinese).
. Oshiro K, Akai K, Matsuura M. Exciton-optical phonon interaction in a spherical quantum dot embedded in nonpolar matrix [J]. Phys. Rev. B, 2002, 66 (15):153308-1-4.
. Kohn W. Shallow impurity states in silicon and germanium [J]. Solid State Phys., 1957, 5 :257-320.
. Qi X H, Kong X J, Liu J J. Effect of aspatially dependent effective mass on the hydrogenic impurity binding energy in a finite parabolic quantum well [J]. Phys. Rev. B, 1998, 58 (16):10578-10582.
. Rajashabala S, Navaneethakrishnan K. Effective masses for donor binding energies in quantum well systems [J]. Mod. Phys. Lett. B, 2006, 20 (24):1529-1541.
. Sing J. Quantum Mechanics [M]. A.Wiley-Inter Science Publication: John Wiley & Sons INC, 1997.
. Perlin P, Mattos L, Shapiro N A, et al. Reduction of the energy gap pressure coefficient of GaN due to the constraining presence of the sapphire substrate [J]. J. Appl. Phys., 1999, 85 (4):2385-2389.
. Vinet P, Ferrante J, Smith J R, et al. A universal equation of state for solids [J]. J. Phys. C, 1986, 19 (20):L467-L473.
. Christensen N E, Gorczyca I. Optical and structural properties of Ⅲ-V nitrides under pressure [J]. Phys. Rev. B, 1994, 50 (7):4397-4415.
. Goi A R, Syassen K, Cardona M. Effect of pressure on the refractive index of Ge and GaAs [J]. Phys. Rev. B, 1990, 41 (14):10104-10110.
. Wagner J M, Bechstedt F. Pressure dependence of the dielectric and lattice-dynamical properties of GaN and AlN [J]. Phys. Rev. B, 2000, 62 (7):4526-4534.
. Ban S L, Hasbun J E. Interface polarons in a realistic heterojunction potential [J]. Eur. Phys. J. B, 1999, 8 (3):453-461.
. Christensen N E, Gorczyca I. Optical and structural properties of Ⅰ -Ⅲ nitrides under pressure [J]. Phys. Rev. B, 1994, 50 (7):4397-4415.
. Fan W J, Li M F, Chong T C. Electronic properties of zinc-blende GaN,AlN and their alloys Ga1-xAlxN [J]. J. Appl. Phys., 1996, 79 (1):188-194.
. Vurgaftman I, Meyer J R, Ram-Mohan L R. Band parameters for Ⅲ-Ⅴ compound semiconductors and their alloys [J]. J. Appl. Phys., 2001, 89 (11):5815-5874.
. Karch K, Bechstedt F, Pletl T. Lattice dynamics of GaN: Effects of 3d electrons [J]. Phys. Rev. B, 1997, 56 (7):3560-3563.
. Karch K, Bechstedt F. Ab initio lattice dynamics of BN and AlN: Covalent versus ionic forces [J]. Phys. Rev. B, 1997, 56 (12):7404-7415.
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