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A strategy for calibrating the actual quantum efficiency of quantum cutting in YVO4:Bi3+(Nd3+), Yb3+

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7 Author(s)
Xu, Sai ; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China ; Xu, Wen ; Zhu, Yongsheng ; Dong, Biao
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Recently, much attention has been paid to the quantum cutting (QC) through the energy transfer (ET) between Yb3+ and other RE ions and the theoretical quantum efficiency (QE) of QC was reported as high as 140%–195%. However, the practical measurement was rather rare. In this paper, we studied the ET and QC properties of YVO4: Bi3+ (5%)/Nd3+ (1%), Yb3+ (0%–20%) synthesized by the solvothermal method. And more, a strategy for calibrating the actual QE of QC was established. Through measurement, the highest QE of QC was determined to be 12.3% for YVO4: Bi3+,Yb3+, and 25.8% for YVO4: Nd3+,Yb3+, which was much lower than the prediction by luminescent dynamics. This work helps us to forecast the feasibility of potential application in enhancing the efficiency of Si-based solar cell via the Bi3+/RE3+ codoped with Yb3+ phosphors.

Published in:

Journal of Applied Physics  (Volume:113 ,  Issue: 7 )