Absence of the Ex Luminescence in KI Crystals Grown from Aqueous Solution
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概要
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It is found that the Ex luminescence at 3.01 eV is absent in KI crystals grown from aqueous solution. This indicates that the Ex luminescence is extrinsic feature of KI and arises from the radiative annihilation of excitons localized near lattice imperfections. The Na^+-related luminescence at 2.60 eV in RbI is also confirmed to be absent if the crystals are prepared from solution. The present work opens a way to study the self-trapping of excitons in KI and RbI without being disturbed by the influence of imperfection-related luminescence.
- 社団法人日本物理学会の論文
- 1995-08-15
著者
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Itoh Minoru
Department Of Animal Husbandry Faculty Of Agriculture Tohoku University:(present Adress) National In
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Itoh Minoru
Department Of Applied Science Faculty Of Engineering Shinshu University
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