Energy transfer and colour tunability in UV light induced Tm^{3 +}/Tb^{3 +}/Eu^{3 +}: ZnB glasses generating white light emission

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• 作者：V. Naresh^a ; ^d ; ^{varna.naresh@gmail.com} ; ^{naresh@gist.ac.kr} ; Kiran Gupta^b ; C. Parthasaradhi Reddy^c ; Byoung S. Ham^d ; ^{bham@gist.ac.kr}
• 关键词：Tm3&#xA0 ; +/Tb3&#xA0 ; +/Eu3&#xA0 ; +&#xA0 ; glasses ; Energy transfer ; Cross-relaxations ; White light emission
• 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：175
• 期：Complete
• 页码：43-50
• 全文大小：1322 K
• 卷排序：175

文摘

ZnB :Tm3 ++ Tb3 + + Eu3 + glasses were prepared by melt quench method. Energy transfer from Tm3 + → Tb3 +, Eu3 + is explained from Forster-Dexter theory. Energy transfer channels in Tm3 + → Tb3 +, Eu3 + are Tm3 +:1G4 → Tb3 +:5D4, Tm3 +:1D2, 1G4 → Eu3 +:5D1,0 & Tb3 +:5D3,4 → Eu3 +:5D1,0. White light emission is achieved by altering concentrations of Tb3 +/Eu3 + to Tm3 +: ZnB glass.