欢迎登录材料期刊网

材料期刊网

高级检索

考虑了纤锌矿结构材料的各向异性造成的内建电场的作用以及各向异性造成的应变张量和静压形变势与各向同性材料的差别.在此基础上计算了GaN/GaAIN量子阱内电子的激发态极化.研究了压力(应变)对电子激发态极化的影响.结果表明,电子势垒高度、电子有效质量和电子激发态极化均随压力线性下降,但由于内建电场的作用造成电子波函数高度局域化,上述变化的幅度不大.

参考文献

[1] Im Jin Seo, Kollmer H, Off J, et al. Reduction of oscillator strength duo to piezoelectric fields in GaN/AlxGa1-xN quantum wells [J]. Phys. Rev. B, 1998, 57(16): R9435-R9438.
[2] Lerous M, Grandjean N, Laugt M, et al. Quantum confined stark effect duo to build-in internal polarization fields in (Al,Ga)N/GaN quantum wells [J]. Phys. Rev. B, 1998, 58(20): R13371-R13374.
[3] Ambacher O, Juant J, Sherly J R, et al. Two-dimensional electron gases induced by spontaneous and piezoelectric polarization charges in N-and Ga-face AlGaN/GaN heterostructures [J]. J. Appl. Phys., 1999, 85(6): 3222.-3233.
[4] Ambacher O, Dimitrov R, Stutzmann M, et al. Role of spontaneous and piezoelectric polarization induced effects in group- Ⅲ nitride based heterostructures and devices [J]. Phys. Stat. Sol. (b), 1999, 216: 381-389.
[5] Bigenwald P, Lefebvre P, Bretagnon T, et al. Confined excitons in GaN-AlGaN quantum wells [J]. Phys. Stat.Sol. (b), 1999, 216: 371-374.
[6] Guo Zizheng, Liang Xixia, et al. Type-Ⅱ excitonic characteristcs of the GaN/GaAlN vide quantum well [J].Chinese Journal of Optoelectronics · Laser (光电子·激光), 2002, 13(12): 1303-1310 (in Chinese).
[7] Qin Guoyi. The asymptonic transfer method in the envelope function approximation [J]. J. Phys: Condens Matter, 1989, 1: 7335-7345.
[8] Guo Z Z, Liang X X, Ban S L. Pressure-induced increase of exciton-LO-phonon coupling a ZnCdSe/ZnSe quantum well [J]. Phys. Stat. Sol. (b), 2003, 238(1): 173-179.
[9] Guo Zizheng, Liang Xixia, Ban Shiliang. Excitons and transition energies of ZnCdSe/ZnSe narrow quantum wells under hydrostatic pressure [J]. Acta Photonica Sinica (光子学报), 2002, 31(8): 946-950 (in Chinese).
[10] Surkumar B, Navaneethkrishnan K. Effect of the dielectric function and pressure on the binding energies of excitons in GaAs and GaAs/Ga1-xAlxAs superlattices [J]. Solid State Commun., 1990, 76(4): 561-564.
[11] 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): 5815-5875.
[12] Yu Yongqin, Huang Baibiao, Wei Jiying, et al. Quantum confinement effect on PL spectrum of InGaAs/AlGaAs multi-quantum wells [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2003, 20(3): 345-349 (in Chinese).
[13] Yue Y L. Study of theory and simulation on semiconductor InGaAsP quantum wells intermixing technique [J].Chinese Journal of Quantum Electronics (量子电子学报), 2003, 20(3): 350-357 (in Chinese).
[14] Shan W, Hauenstein R J, et al. Strain effects on excitonic transitions in GaN:deformation potentials [J]. Phys.Rev. B, 1996, 54(19): 13460-13463.
[15] Young P M, Runge E, et al. Optical absorption and exciton linewidth of Zn1-xCdxSe quantum wells [J]. Phys.Rev. B, 1994, 49(11): 7424-7431.
[16] Willardson R K, Weber E R, et al. High pressure in semiconductor physics I (in: Semiconductor and Semimetal,55) [M]. New York: Academic Press, 1998. 273, 283.
[17] Ban S L, Hasbun J E. Interface polarons in a realistic heterojunction potential [J]. Eur. Phys. J. B, 1999, 8(3):453-461.
[18] Zhu Jialin, Tang Daohua, Xiong Jiajiong. Subbands and excitons in GaAs/Ga1-xAlxAs quantum wells with different shapes in an electric field [J]. Phys. Rev. B, 1989, 39(12): 8609-8615.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%