Energy Transfer and Relaxation Mechanism among Exciton States in Layered Crystal BiI_3. I. Energy Transfer by Triplet Excitons

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概要

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• Energy transfer from the triplet state of the bulk exciton to the exciton states localized at a stacking fault interface (stacking fault exciton ; SFE) in BiI_3 crystals is investigated by observing the temporal behavior and space-resolved spectra of their resonant luminescence. The recombination luminescence with decay time constant of 1.5 nsec from the triplet exciton appears in the sample having the SFE transition, by taking the SFE states as intermediate states. For the excitation at the indirect exciton region, one of the SFE luminescence shows a slow decay with the same time constant as that of the triplet state in addition to an intrinsic fast decay component with the time constant of 40 psec. The space-resolved luminescence spectra indicate that the triplet excitons transport their energy far from the exciting light spot and transfer it to the SFE states efficiently.

• 社団法人日本物理学会の論文
• 1993-02-15

著者

• Kawai T

  Tokyo Univ. Sci. Tokyo

• KOMATSU Teruo

  Department of Physics, Osaka City University

• KARASAWA Tsutomu

  Department of Physics, Graduate School of Science, Osaka City University

• Komatsu Tokutaro

  Graduate School Of Arts & Sciences The University Of Tokyo

• Komatsu Tokutaro

  Department Of Chemistry Graduate School Of Science Kyoto University

• Karasawa Tsutomu

  Department Of Physics Faculty Of Science Osaka City University

• Ichida Masao

  Department Of Physics Osaka City University:department Of Applied Physics Nagoya University

• Ichida Masao

  Department Of Physics Konan University

• Komatsu T

  Osaka Univ. Osaka

• Komatsu Teruo

  Department Of Physics Faculty Of Science Osaka City University

• KAWAI Taketoshi

  Department of Natural Science,Osaka Women's University

• Kawai Taketoshi

  Deparment Of Environmental Sciences Faculty Of Science Osaka Women's University

• Karasawa Tsutomu

  Department Of Applied Physics Nagoya University

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