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Effect of crystal structure and concentration on luminescence in Er3+: ZrO2 nanocrystals

机译:晶体结构和浓度对Er3 +:ZrO2纳米晶体发光的影响

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摘要

The sol-emulsion-gel method is used for the preparation of Er3+ doped ZrO2 nanocrystals. The luminescence spectra and lifetime of the excited state I-4(13/2) of Er3+ ions in ZrO2 nanocrystals are found to be sensitive to the crystal structure and dopant concentration. It is found that the luminescence lifetimes of 1.0 mol% Er3+ doped ZrO2 nanocrystals are 1.94 and 3.36 ms for 800 and 1000 degreesC heat-treated samples, respectively. The analysis suggests that modification of relaxation mechanism is due to the crystal structure of the host and concentration of ions. (C) 2004 Elsevier B.V. All rights reserved. [References: 14]
机译:溶胶-凝胶法用于制备掺Er3 +的ZrO2纳米晶体。发现ZrO2纳米晶体中Er3 +离子的激发态I-4(13/2)的发光光谱和寿命对晶体结构和掺杂剂浓度敏感。已经发现,对于800和1000℃的热处理样品,1.0mol%的Er 3+掺杂的ZrO 2纳米晶体的发光寿命分别为1.94和3.36ms。分析表明,弛豫机理的改变归因于主体的晶体结构和离子浓度。 (C)2004 Elsevier B.V.保留所有权利。 [参考:14]

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