The role of hydrogen- and hydroxyl-doping in CsBr:Eu |
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| Authors: | Jia Meng |
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| Institution: | The key Laboratory of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Science, 1295 Dingxi Road, 200050 Shanghai, China |
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| Abstract: | Hydrogen- and hydroxyl-doped CsBr:Eu2+ storage phosphors were investigated by photostimulated luminescence (PSL) spectra, absorption spectra and PSL lifetime spectra. Hydrogen- and hydroxyl-doping plays an active role related to the trap centers in CsBr:Eu2+ storage phosphors. A sharp increase in the PSL yield was observed for non-hydroxyl-doped CsBr:Eu2+ annealed in 5%H2+95%Ar atmosphere. For hydroxyl-doped CsBr:Eu2+, the PSL lifetime (361 ns) is obviously shorter than that of typical CsBr:Eu2+ storage phosphors. |
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| Keywords: | 71 55 Ht 78 55 Fv 78 40 Ha 78 47 cd |
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