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PHOSPHOR FOR ELECTRON BEAM

2025-06-18 22:221890下载
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PROBLEM TO BE SOLVED : To provide a single white light emitting phosphor without a color shift due to color mixing. SOLUTION : A phosphor for an electron beam has a composition represented by the general formula (Lu1-x-y, Tbx, Ry)2O2S, where R is at least one rare-earth element selected from Ce, Pr, Sm, Eu and Dy. In addition, x and y in the specified general formula are in the ranges of 0.0001
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