Photoreduction and emission of solid europium(III) chloride in KBr by laser irradiation at 308nm.
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概要
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The emission and transient absorption spectra of solid europium irradiated with laser light at 308 nm were measured. EuCl<SUB>3</SUB>·6H<SUB>2</SUB>O in a KBr disk was photoreduced to form excited Eu<SUP>2+</SUP>, and the emission from excited Eu<SUP>2+</SUP> was observed directly after a reduction of Eu<SUP>3+</SUP>. Since Eu<SUP>2+</SUP> was not stabilized in the KBr disk sample, it oxidized rapidly to form Eu<SUP>3+</SUP>. From a discussion concerning the temperature dependence of the rate constants of the reduction and deexcitation, it is shown that the reduction rate increases at higher temperature.
- 公益社団法人 日本化学会の論文
著者
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Yamada Yasuhiro
Department Of Agricultural Chemistry Faculty Of Agriculture University Of Tokyo
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Ohno Shin-ichi
Department of Chemistry, Japan Atomic Energy Research Institute
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