Cathodoluminescence of YAG:Nd optical nanoceramics in the visible and UV ranges
作者： K.N. Orekhova , R. Tomala , D. Hreniak , W. Stręk , M.V. Zamoryanskaya
DOI: 10.1016/J.OPTMAT.2017.02.027
关键词:
摘要: Abstract Results of cathodoluminescence studies optical YAG:Nd nanoceramics with different microstructure are presented. The composition the samples was studied by electron-probe microanalysis. estimation average grain size performed use scanning electron microscopy and based on X-ray diffraction analysis. Local technique used to collect emission spectra decays in UV visible range. “memory effect” luminescence noticed discussed. In particular, it observed that initial beam irradiation sample leads increase efficiency ranges. It confirmed also effect is long-lasting remains for years. To understand mechanism effect, temperature annealing under continuous done. model memory involving trap states proposed
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