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静压下Zn_(1-x)Cd_xSe/ZnSe窄量子阱的激子和光跃迁 被引量:1

EXCITONS AND TRANSITION ENERGIES OF ZnCdSe/ZnSe NARROW QUANTUM WELLS UNDER HYDROSTATIC PRESSURE
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摘要 利用波恩公式近似建立了应变与介电常量的定量关系 考虑应变对介电常量、有效质量、晶格常量 (体积 )等诸多物理量的影响 ,用变分法计算了静压下Zn1 -xCdxSe/ZnSe窄量子阱中激子结合能和光跃迁能量随压力的变化 Using the Born formula,an approximate expression of the dielectric constant with pressure or strain is given.The exciton binding energies and the transition energies of ZnCdSe/ZnSe quantum wells under hydrostatic pressure are calculated using the variation method with consideration of the influence of pressure or strain on the dielectirc constant,effective masses,lattice constants and other physical quantities.The calculation results are discussed and compared with other author′s experimental and theoretical work.
出处 《光子学报》 EI CAS CSCD 北大核心 2002年第8期946-950,共5页 Acta Photonica Sinica
基金 国家自然科学基金资助项目 (6 0 16 6 0 0 2 )
关键词 Zn1-xCdxSe/ZnSe 窄量子阱 静压 介电常量 有效质量 激子 光跃迁 应变 半导体 超晶格 光致发光 Hydrostatic pressure Quantum well Dielectric constant Effective mass Exciton Transition energy
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参考文献13

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