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- Title
Improving upconversion efficiency of NaLuF<sub>4</sub>:Yb,Er by doping Gd<sup>3+</sup> and application for perovskite solar cells.
- Authors
Ding, Yanli; Zhang, Xiaodan; Zhao, Ying
- Abstract
The use of upconversion (UC) materials is an effective strategy for harvesting the near-infrared (NIR) solar photons in perovskite solar cells. Hexagonal β-NaLuF4:Yb,Er submicron prisms were synthesized by a facile solvothermal method. Gd3+ doping is used to enhance the UC emission intensity. We investigated how the concentration of Gd3+ ions affected the morphological evolution, microstructure, and luminescence performance of NaLuF4:Yb,Er and explored the mechanism for improving luminescence at 980 nm excitation. By incorporating the optimized NaLuF4:Yb,Er,Gd into the perovskite solar cells' (PSCs) hole transport layer, the short-circuit density (Jsc) of UC-PSCs can be enhanced from 19.31 to 21.77 mA cm−2.
- Subjects
SOLAR cells; PHOTON upconversion; YTTERBIUM; PEROVSKITE; HARVESTING; LUMINESCENCE
- Publication
Journal of Materials Science: Materials in Electronics, 2022, Vol 33, Issue 31, p23880
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-021-07189-3