Spontaneous and stimulated emission in ZnCdSe/ZnSe asymmetrical double quantum wells
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作者:
Fan, XW
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Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Lab Excited State Proc, Changchun 130021, Peoples R ChinaChinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Lab Excited State Proc, Changchun 130021, Peoples R China
Fan, XW
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Yu, GY
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Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Lab Excited State Proc, Changchun 130021, Peoples R ChinaChinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Lab Excited State Proc, Changchun 130021, Peoples R China
Yu, GY
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Zhang, JY
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Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Lab Excited State Proc, Changchun 130021, Peoples R ChinaChinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Lab Excited State Proc, Changchun 130021, Peoples R China
Zhang, JY
[1
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Shen, DZ
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Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Lab Excited State Proc, Changchun 130021, Peoples R ChinaChinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Lab Excited State Proc, Changchun 130021, Peoples R China
Shen, DZ
[1
]
机构:
[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Lab Excited State Proc, Changchun 130021, Peoples R China
The spontaneous and stimalated emission in ZnCdSe/ZnSe asymmetric doule quantum wells have been studied. The exciton photoluminescence both in the nanow well and in the wide well is influenced by two factors, the exciton tunneling and the thermal dissociation processes. The change of the emission intensity is determined by the stronger one. The carrier tunneling through the thin barrier is conductive to the stimulated emission from the wide well, and the threshold can be lowered by optimizing the structure.