Exciton Luminescence of CuCl, CuBr and CuI Single Crystals
スポンサーリンク
概要
- 論文の詳細を見る
Emission, absorption and reflection spectra have been studied on single crystals of cuprous halides. Three types of emission are observed: 1) resonance emission due to the annihilation of the lowest energy intrinsic exciton, 2) narrow lines due to bound excitons at defects or impurities, 3) broad bands and overlapping equidistant narrow bands. In the excitation spectrum for the resonance emission a structure of equal spacing, which corresponds to the longitudinal optical (LO) phonon energy, is found in the exciton absorption band region at low temperatures below 40°K. The resonance emission bands in CuBr and emission lines belonging to the type 2) in CuI are accompanied by the LO phonon assisted satellite bands. The LO phonon energies are obtained as $210\pm 12$, $166\pm 7$ and $151\pm 8$ cm-1 in CuCl, CuBr and CuI crystals, respectively.
- Physical Society of Japanの論文
- 1968-02-05
著者
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Goto Takenari
Department Of Physics Faculty Of Science Tohoku University
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TAKAHASHI Tadatoshi
Department of Physics Tohoku University
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Ueta Masayasu
Department Of Physics Faculity Of Science Tohoku University
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Takahashi Tadatoshi
Department of Physics, Faculty of Science, Tohoku University, Sendai
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