標題: | Charge Transfer Luminescence of Several Zirconium-Containing Compounds Using Synchrotron Radiation |
作者: | Wang, De-Yin Chen, Teng-Ming Cheng, Bing-Ming 應用化學系 Department of Applied Chemistry |
關鍵字: | barium compounds;calcium compounds;charge exchange;doping;europium;photoluminescence;radiation quenching;zirconium compounds |
公開日期: | 2011 |
摘要: | Photoluminescence properties of pristine and Eu(2+)-doped zirconates, viz. BaZr(PO(4))(2), BaZr(4)(PO(4))(6), Ba(2)Zr(2)Si(3)O(12), and Ca(3)ZrSi(2)O(9), excited by vacuum ultraviolet (VUV) light using synchrotron radiation were studied. The undoped zirconates show self-activated emission in the 300-340 nm region under VUV excitation, which is ascribed to the Zr(4+)-O(2-) charge transfer luminescence. Upon doping Eu(2+) into these compounds, no Eu(2+) emission was observed in the rest of compounds, except for a weak Eu(2+) emission observed in Ba(2)Zr(2)Si(3)O(12):Eu(2+). The quenching of Eu(2+) luminescence is rationalized as the presence of Zr(4+)-Eu(2+) metal-metal charge transfer. (C) 2011 The Electrochemical Society. [DOI: 10.1149/1.3605475] All rights reserved. |
URI: | http://hdl.handle.net/11536/25960 http://dx.doi.org/10.1149/1.3605475 |
ISSN: | 1099-0062 |
DOI: | 10.1149/1.3605475 |
期刊: | ELECTROCHEMICAL AND SOLID STATE LETTERS |
Volume: | 14 |
Issue: | 9 |
起始頁: | J61 |
結束頁: | J63 |
Appears in Collections: | Articles |