Time-resolved spectroscopy of biexciton luminescence inZnxCd1 | Zendy

Yoichi Yamada | Zendy; Tomobumi Mishina | Zendy; Yasuaki Masumoto | Zendy; Yoichi Kawakami | Zendy; Shigeo Yamaguchi | Zendy; Kunio Ichino | Zendy; Shizυo Fujita | Zendy; Shigeo Fujita | Zendy; Tsunemasa Taguchi | Zendy

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Time-resolved spectroscopy of biexciton luminescence inZnxCd1

Author(s) -

Yoichi Yamada,

Tomobumi Mishina,

Yasuaki Masumoto,

Yoichi Kawakami,

Shigeo Yamaguchi,

Kunio Ichino,

Shizυo Fujita,

Shigeo Fujita,

Tsunemasa Taguchi

Publication year - 1995

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.51.2596

Subject(s) - luminescence , biexciton , physics , spectroscopy , excitation , atomic physics , exciton , radiative transfer , condensed matter physics , quantum mechanics , optics

The radiative lifetime of biexcitons in ZnxCd1-xSe-ZnSySe1-y multiple quantum wells has been studied by means of time-resolved luminescence spectroscopy under high-density excitation. It is shown that the rise of the biexciton luminescence becomes more rapid with increasing excitation energy density and that the biexciton luminescence decays with a double exponential form. It is found that the decay-time constant of the faster-decay component in the double-exponential decay corresponds to the radiative lifetime of the biexciton. Its value is about 6 ps at 2 K and is about one-seventh of that in bulk ZnSe (∼40 ps)

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