Luminescence from KCl: I at Low Temperatures
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概要
- 論文の詳細を見る
In addition to the well-known three impurity emission bands (BG-, B-, andUV-emission), a new emission band is found at 5.88 eV in a KC[: I system underexcitation with UV-light, X-rays, or N. laser light. Its intensity and lifetime(0.52 jts at 9 K) fall off rapidly above 12 K with an activation energy of lE=2Imen. The intensities of the new emission and the BG emission are anti-correlatedwith varying temperature. Measurements of the excitation spectrum confirm thatthe 5.88 eV emission arises from de-excitation of localized excitons at I- monomernon sutes.Based on the small Stokes shift (0.82 eV) and small halfwidth (0.23 eV) of thisemission band, and the results obtained in an experiment of recombinationluminescence of X-rayed crystal, one-center model for relaxed excitons is suggestedas the origin of a relaxed excited state responsible for the 5.88 eV emission band.
- 社団法人日本物理学会の論文
- 1979-09-15
著者
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ITOH Minoru
Department of Animal Husbandry, Faculty of Agriculture Tohoku University
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NAKAI Yoshio
Department of Physics,Kyoto University
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Itoh Minoru
Department Of Animal Husbandry Faculty Of Agriculture Tohoku University:(present Adress) National In
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Nakai Yoshio
Department Of Physics Faculty Of Science Kyoto University
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Nakai Yoshio
Department Of Physics Faculty Of Scicncc Kyoto University
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Kan′no Ken-ichi
Department of Physics, Kyoto University
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