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Search: WFRF:(Tian Fuyu)

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  • Wang, Heyong, 1989-, et al. (author)
  • Impacts of the Lattice Strain on Perovskite Light-Emitting Diodes
  • 2023
  • In: Advanced Energy Materials. - : Wiley-V C H Verlag GMBH. - 1614-6832 .- 1614-6840. ; 13:33
  • Journal article (peer-reviewed)abstract
    • The development of perovskite light-emitting diodes (PeLEDs) with both high efficiency and excellent stability remains challenging. Herein, a strong correlation between the lattice strain in perovskite films and the stability of resulting PeLEDs is revealed. Based on high-efficiency PeLEDs, the device lifetime is optimized by rationally tailoring the lattice strain in perovskite films. A PeLED with a high peak external quantum efficiency of 18.2% and a long lifetime of 151 h (T-70, under a current density of 20 mA cm(-2)) is realized with a minimized lattice strain in the perovskite film. In addition, an increase in the lattice strain is found during the long-time device stability test, indicating that the degradation of the local perovskite lattice structure could be one of the degradation mechanisms for long-term stable PeLEDs.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Zhang, Lijun (1)
Gao, Feng, 1981- (1)
Qin, Jiajun (1)
Zhang, Tiankai (1)
Chen, Zhan (1)
Liu, Xiaoke, 1988- (1)
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Wang, Heyong, 1989- (1)
Gao, Xingyu (1)
Zheng, Guanhaojie (1)
van Aken, Peter A. (1)
Tian, Fuyu (1)
Wang, Hongguang (1)
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University
Linköping University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2023 (1)

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