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

Xiong Zhou; Hui Wang; Haiping Xia; Hongwei Song; Xu Chen; Jianxu Hu; Baojiu Chen

doi:10.3788/COL201917.091601

Journals >Chinese Optics Letters >Volume 17 >Issue 9 >Page 091601 > Article

Chinese Optics Letters
Vol. 17, Issue 9, 091601 (2019)

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

Xiong Zhou¹, Hui Wang¹, Haiping Xia^1、*, Hongwei Song^2、**, Xu Chen², Jianxu Hu¹, and Baojiu Chen³

Author Affiliations

¹Key Laboratory of Photo-Electronic Materials, Ningbo University, Ningbo 315211, China

²State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering and College of Physics, Jilin University, Changchun 130012, China

³Department of Physics, Dalian Maritime University, Dalian 116026, China

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DOI: 10.3788/COL201917.091601 Cite this Article Set citation alerts

Xiong Zhou, Hui Wang, Haiping Xia, Hongwei Song, Xu Chen, Jianxu Hu, Baojiu Chen. Efficient up-conversion Yb³⁺, Er³⁺ co-doped Na₅Lu₉F₃₂ single crystal for photovoltaic application under solar cell spectrum excitation[J]. Chinese Optics Letters, 2019, 17(9): 091601 Copy Citation Text

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Abstract

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.