Efficient up-conversion Yb3+, Er3+ co-doped Na5Lu9F32 single crystal for photovoltaic application under solar cell spectrum excitation

被引：6
|
作者：
Zhou, Xiong [1 ]
Wang, Hui [1 ]
Xia, Haiping [1 ]
Song, Hongwei [2 ,3 ]
Chen, Xu [2 ,3 ]
Hu, Jianxu [1 ]
Chen, Baojiu [4 ]
机构：
[1] Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China
[2] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Jilin, Peoples R China
[3] Jilin Univ, Coll Phys, Changchun 130012, Jilin, Peoples R China
[4] Dalian Maritime Univ, Dept Phys, Dalian 116026, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2019年 / 17卷 / 09期
基金：
中国国家自然科学基金;
关键词：
LUMINESCENCE;
D O I：
10.3788/COL201917.091601
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Yb3+/Er3+ co-doped Na5Lu9F32 single crystals used as a spectral up-converter to improve the power conversion efficiency of perovskite solar cells are prepared via an improved Bridgman approach. Green and red up-conversion (UC) emissions under the excitation of near-infrared (NIR) bands of 900-1000 nm and 1400-1600 nm can be observed. The effectiveness of the prepared materials as a spectral converter is verified by the enhancement of power conversion efficiency of perovskite solar cells. The sample with a UC layer is 15.5% more efficient in converting sunlight to electricity compared to the UC layer-free sample due to the absorption of sunlight in the NIR range. The results suggest the synthesized Yb3+/Er3+ co-doped Na5Lu9F32 single crystals are suitable for enhancing the performance of perovskite solar cells.
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页数：5
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