Intersystem Conversion between Singlet and Triplet Exciton States in ZnP2
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概要
- 論文の詳細を見る
Detailed excitation spectra for singlet and triplet luminescence in ZnP2 are observed at 2 K by using a Ti:sapphire laser.When a singlet exciton is excited, conversion to a triplet exciton occurs over a wide excitation energy range.The spin memory of the exciton is easily lost under the band-to-band excitation condition.When the triplet exciton is excited, the excitation spectrum for the triplet luminescence shows a clear hydrogen-like series up to n=9, which reflects the absorption spectrum of a spin triplet exciton series with s-d doublet structure for n≥3.The excitation spectrum for the singlet luminescence under the excitation of the triplet exciton is observed for the first time as a new exciton series appearing only for n≥3.The new exciton series results from the contribution of the d-envelope function of the exciton, and the s-envelope function alone does not give rise to the singlet luminescence.
- Physical Society of Japanの論文
- 1996-01-15
著者
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Arimoto Osamu
Department Of Physics Faculty Of Science Okayama University
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Nakamura Kaizo
Department Of Physics Faci4ty Of Science Kyoto University
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Sugisaki Mitsuru
Department Of Physics Faculty Of Science Okayama University
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Sugisaki Mitsuru
Department of Physics, Faculty of Science, Okayama University, Okayama 700
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Arimoto Osamu
Department of Physics, Faculty of Science, Okayama University, Okayama 700
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