Hierarchical Silver Indium Tungsten Oxide Mesocrystals with Morphology-, Pressure-, and Temperature-Dependent Luminescence Properties  

作　　者：Bo Hu Li-Heng Wu Zhi Zhao Meng Zhang Shao-Feng Chen Shu-Juan Liu Hong-Yan Shi Ze-Jun Ding Shu-Hong Yu 

机构地区：[1]Division of Nanomaterials and Chemistry,Hefei National Laboratory for Physical Sciences at the Microscale,Department of Chemistry,Department of Materials Science and Engineering,the National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230026,China [2]Division of Instruments Center for Physical Science,Hefei National Laboratory for Physical Sciences at the Microscale,University of Science and Technology of China,Hefei 230026,China [3]Department of Physics,Hefei National Laboratory for Physical Sciences at the Microscale,University of Science and Technology of China,Hefei 230026,China

出　　处：《Nano Research》2010年第6期395-403,共9页纳米研究（英文版）

基　　金：S.H.Y.acknowledges the special funding support from the National Basic Research Program of China(No.2010CB934700);the National Natural Science Foundation of China(NSFC,No.50732006);the Program of International S&T Cooperation(No.2010DFA41170);and the Principal Investigator Award by the National Synchrotron Radiation Laboratory at the University of Science and Technology of China.

摘　　要：Highly hierarchical structures of silver indium tungsten oxide(AgIn(WO_(4))_(2))mesocrystals can be rationally fabricated via the microwave-assisted synthesis method by tuning the initial concentrations of the precursors.Photoluminescence spectra of hierarchical AgIn(WO_(4))_(2) mesocrystals were measured to investigate the correlation between the morphology,pressure,and temperature and their luminescence properties.The materials showed interesting white emission when excited by visible light of wavelength 460 nm.AgIn(WO_(4))_(2) materials having different morphologies displayed notable differences in photogenerated emission performance.The emission was strongly correlated with the surface nanostructures of outgrowths,with larger amounts of outgrowths leading to stronger emission intensities.The pressure-and temperature-dependent photoluminescence properties of these materials have also been investigated under hydrostatic pressures up to 16 GPa at room temperature and in the temperature range from 10 to 300 K.

关 键 词：PHOTOLUMINESCENCE AgIn(WO_(4))_(2) mesocrystal MORPHOLOGY high-pressure temperature 

分 类 号：TG1[金属学及工艺—金属学]