Spin-polarized localized exciton photoluminescence dynamics in GaInNAs quantum wells

Shulong Lu, Hidetaka Nosho, Atsushi Tackeuchi, Lifeng Bian, Jianrong Dong, Zhichuan Niu

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    We have investigated spin polarization-related localized exciton photoluminescence (PL) dynamics in GaInNAs quantum wells by timeresolved PL spectroscopy. The emission energy dependence of PL polarization decay time as well as polarization-independent PL decay time suggests that the acoustic phonon scattering in the process of localized exciton transfer from the high-energy localized states to the low-energy ones dominates the PL polarization relaxation. By increasing the excitation power from 1 to 10mW, the PL polarization decay time is changed from 0.17 to more than 1 ns, which indicates the significant effect of the trapping of localized electrons by nonradiative recombination centers. These experimental findings indicate that the spin-related PL polarization in diluted nitride semiconductors can be manipulated through carrier scattering and recombination process.

    Original languageEnglish
    Pages (from-to)1002061-1002063
    Number of pages3
    JournalJapanese Journal of Applied Physics
    Volume48
    Issue number10 Part 1
    DOIs
    Publication statusPublished - 2009

    Fingerprint

    Excitons
    Semiconductor quantum wells
    Photoluminescence
    excitons
    quantum wells
    photoluminescence
    Polarization
    polarization
    decay
    Spin polarization
    Phonon scattering
    Photoluminescence spectroscopy
    Nitrides
    Electron energy levels
    scattering
    nitrides
    Acoustics
    energy
    Scattering
    Semiconductor materials

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

    Cite this

    Spin-polarized localized exciton photoluminescence dynamics in GaInNAs quantum wells. / Lu, Shulong; Nosho, Hidetaka; Tackeuchi, Atsushi; Bian, Lifeng; Dong, Jianrong; Niu, Zhichuan.

    In: Japanese Journal of Applied Physics, Vol. 48, No. 10 Part 1, 2009, p. 1002061-1002063.

    Research output: Contribution to journalArticle

    Lu, Shulong ; Nosho, Hidetaka ; Tackeuchi, Atsushi ; Bian, Lifeng ; Dong, Jianrong ; Niu, Zhichuan. / Spin-polarized localized exciton photoluminescence dynamics in GaInNAs quantum wells. In: Japanese Journal of Applied Physics. 2009 ; Vol. 48, No. 10 Part 1. pp. 1002061-1002063.
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    AU - Tackeuchi, Atsushi

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    AU - Dong, Jianrong

    AU - Niu, Zhichuan

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