Xu Suo-cheng,Zheng Xi,Tian Hua,Lv Tian-shuai,Wang Peng,Wang Da-jian.Color tuning of Eu-Tb co-doped borophosphate glasses for white light through valence state adjustment[J].Optoelectronics Letters,2011,7(6):427-430 Color tuning of Eu-Tb co-doped borophosphate glasses for white light through valence state adjustment Author Name Affiliation Xu Suo-cheng  School of Materials Science and Engineering, Tianjin University of Technology；  Zheng Xi  Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education of China, Tianjin University of Technology；  Tian Hua  School of Materials Science and Engineering, Tianjin University of Technology；  Lv Tian-shuai  Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education of China, Tianjin University of Technology；  Wang Peng  School of Materials Science and Engineering, Tianjin University of Technology；  Wang Da-jian  School of Materials Science and Engineering, Tianjin University of Technology； Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education of China, Tianjin University of Technology； Tianjin Key Laboratory of Photoelectric Materials and Devices, Tianjin University of Technology；  Abstract:       The dependence of color points of white light on the composition of borophosphate glasses co-doped with europium (Eu) and terbium (Tb) has been investigated in terms of valence change of rare earth ions. Under ultraviolet (UV) excitation, the white light is observed to be from a combination of 4f65d→4f7 band transition emission at 425 nm for Eu2+, 5D0→7FJ (J=1, 2) line-emissions at 593 nm and 611 nm for Eu3+, and 5D4→7F5 band transition emission at 545 nm for Tb3+. By varying the glass compositi... Hits: 4674 Download times: 189 View Full Text    Download reader