Energy Transfer from Sn super(2+) to RE super(3+) Cations in ZnO-P sub(2) O sub(5) Glass

• Published in: Bulletin of the Chemical Society of Japan Vol. 87; no. 4; pp. 556 - 563
• Main Authors: Masai, Hirokazu, Hino, Yusuke, Yanagida, Takayuki, Fujimoto, Yutaka, Yoko, Toshinobu
• Format: Journal Article
• Language: English
• Published: 15.04.2014
• Subjects: Cations; Decay; Emission; Energy transfer; Exchange; Glass; Photoluminescence; Rare earth metals
• ISSN: 0009-2673; 1348-0634
• DOI: 10.1246/bcsj.20130281

The photoluminescence (PL) properties of rare earth (RE)-doped SnO-ZnO-P sub(2) O sub(5)(RE-SZP) glass were examined in the visible region. RE-SZP glass, except for those doped with Ce super(3+), exhibited similar optical band edges because of the s-p transition in Sn super(2+). The RE super(3+) PL excitation bands in RE-SZP glass were red-shifted compared to the bands in Sn-free glass because of the energy transfer from the Sn super(2+) center. In addition, the emission intensity in a few RE-SZP glass systems was remarkably enhanced by Sn super(2+) addition. Emission decays of Sn super(2+) in the glass were typically independent of the RE super(3+), and suggest the exchange interaction between Sn super(2+) and RE super(3+). This indicated that the RE super(3+) cation is generally located close to the Sn super(2+) center in order to allow energy transfer.