Impact of photogenerated charge behaviors on luminescence of Eu^(3+) -incorporated microporous titanosilicate ETS-10  

作　　者：GUO XingXing WEI Xiao WANG KaiXue WANG JingFeng CHEN JieSheng 

机构地区：[1]School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University

出　　处：《Science China Chemistry》2013年第4期428-434,共7页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China (21201121, 21271128);the National Basic Research Program of China (2011CB808703)

摘　　要：A series of Eu3+ -incorporated ETS-10 samples were successfully prepared based on the traditional ion exchange method. The relationship between photogenerated charge behaviors and luminescent properties has been investigated in detail. It has been demonstrated that as a result of the charge transfer from the titanate quantum wires to Eu3+ crystal field states, the host matrix ETS-10 functions as the sensitizer of Eu3+ to enhance the red luminescence, while Eu3+ cations contribute to the recombination of photogenerated charges. The behavior of photogenerated charges has significant impact on the luminescent properties of Eu3+ -incorporated ETS-10 materials.A series of Eu3＋-incorporated ETS-10 samples were successfully prepared based on the traditional ion exchange method. The relationship between photogenerated charge behaviors and luminescent properties has been investigated in detail. It has been demonstrated that as a result of the charge transfer from the titanate quantum wires to Eu3＋ crystal field states, the host matrix ETS-10 functions as the sensitizer of Eu3＋ to enhance the red luminescence, while Eu3＋ cations contribute to the recombination of photogenerated charges. The behavior of photogenerated charges has significant impact on the luminescent properties of Eu3＋-incorporated ETS-10 materials.

关 键 词：ETS-IO ion exchange photoluminescence photogenerated charges PHOTOVOLTAGE SENSITIZATION 

分 类 号：TQ424.25[化学工程]