Fluorescence Associated with Impurities in Nanostructured Al_2O_3

作     者：Lide ZHANGt and GuoZhong WANG(Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China)Chimei MO(Dept. of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China)Tienan ZHAO(Institute 

作者机构：Institute of Solid State Physics Chinese Academy of Sciences Hefei 230031 China Dept. of Materials Science and Engineering University of Science and Technology of China Hefei 230026 China Institute of Physics Chinese Academy of Sciences Beijing 100080 China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：1996年第12卷第1期

页      面：19-24页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

主　　题：Al Cr der OO Fluorescence Associated with Impurities in Nanostructured Al2O3 

摘      要：The fluorescent spectra of nanostructured Al2O3 after heat-treating at different temperatureshave been systematically investigated. The results show that for η-Al2O3 and γ-Al2O3, two broadfluorescent bands P1 and P2 appear in the wavenumber range of 20000 cm-1 to 11500 cm-1,and P1 and P2 bands are located in the wavenumber range of 20000 cm-1 to 14500 cm-1 and14500 cm-1 to 11500 cm-1, respectively The P1 band can be attributed to the impurity Cr3+luminescence. This is consistent with other author s result for the Cr doped Al2O3. The P2band is a new fluorescent phenomenon, which has not been reported previously. In this paper,the condition of the appearance of P2 and its mechanism is discussed in detail.