Quenching of Intrinsic Luminescence by Coloration in KI and RbI

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概要

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• The luminescence intensity measured under uv-excitation at low temperatures in X-irradiated Kl and Rbl has been compared with that measured in uncolored crystals.Reduction in the luminescence efficiency caused by the coloration is due to non-radiative annihilation of free excitons or conduction electron-hole pairs throughinteraction with F-centers. Change in the degree of the luminescence quenchingobserved with the increase in the photon energy of excitation from the exciton bandregion toward the interband transition region can be ascribed to the difference betweenthe relaxation probability of excitons and of electron-hole pairs to the self-trappedexciton state. The temperature dependence of the luminescence quenching suggests thata part of free excitons relax to the self-trapped exciton state through thermal activationprocess

• 社団法人日本物理学会の論文
• 1977-11-15

著者

• Hayashi Tetsusuke

  Physics Laboratory School Of General Education Kyoto University

関連論文

• Quenching of Intrinsic Luminescence by Coloration in KI and RbI

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