中国物理B ›› 2023, Vol. 32 ›› Issue (1): 18507-018507.doi: 10.1088/1674-1056/aca7e8

所属专题: SPECIAL TOPIC — Physics in micro-LED and quantum dots devices

• • 上一篇    下一篇

Ion migration in metal halide perovskite QLEDs and its inhibition

Yuhui Dong(董宇辉)1,2, Danni Yan(严丹妮)1,2, Shuai Yang(杨帅)1,2, Naiwei Wei(魏乃炜)1,2, Yousheng Zou(邹友生)1,2,†, and Haibo Zeng(曾海波)1,2‡   

  1. 1 Institute of Optoelectronics&Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    2 Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
  • 收稿日期:2022-08-31 修回日期:2022-11-16 接受日期:2022-12-02 出版日期:2022-12-08 发布日期:2023-01-03
  • 通讯作者: Yousheng Zou, Haibo Zeng E-mail:yshzou75@njust.edu.cn;zeng.haibo@njust.edu.cn
  • 基金资助:
    This work was supported by the Natural Natural Science Foundation of China (Grant Nos. 61904081 and 51672132), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20190449), and the Postdoctoral Research Funding Program of Jiangsu Province, China (Grant No. 2020Z144).

Ion migration in metal halide perovskite QLEDs and its inhibition

Yuhui Dong(董宇辉)1,2, Danni Yan(严丹妮)1,2, Shuai Yang(杨帅)1,2, Naiwei Wei(魏乃炜)1,2, Yousheng Zou(邹友生)1,2,†, and Haibo Zeng(曾海波)1,2‡   

  1. 1 Institute of Optoelectronics&Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    2 Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
  • Received:2022-08-31 Revised:2022-11-16 Accepted:2022-12-02 Online:2022-12-08 Published:2023-01-03
  • Contact: Yousheng Zou, Haibo Zeng E-mail:yshzou75@njust.edu.cn;zeng.haibo@njust.edu.cn
  • Supported by:
    This work was supported by the Natural Natural Science Foundation of China (Grant Nos. 61904081 and 51672132), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20190449), and the Postdoctoral Research Funding Program of Jiangsu Province, China (Grant No. 2020Z144).

摘要: Benefiting from the excellent properties such as high photoluminescence quantum yield (PLQY), wide gamut range, and narrow emission linewidth, as well as low-temperature processability, metal halide perovskite quantum dots (QDs) have attracted wide attention from researchers. Despite tremendous progress has been made during the past several years, the commercialization of perovskite QDs-based LEDs (PeQLEDs) is still plagued by the instability. The ion migration in halide perovskites is recognized as the key factor causing the performance degradation of PeQLEDs. In this review, the elements species of ion migration, the effects of ion migration on device performance and stability, and effective strategies to hinder/mitigate ion migration in PeQLEDs are successively discussed. Finally, the forward insights on the future research are highlighted.

关键词: perovskite quantum dots, light-emitting diodes, ion migration, stability

Abstract: Benefiting from the excellent properties such as high photoluminescence quantum yield (PLQY), wide gamut range, and narrow emission linewidth, as well as low-temperature processability, metal halide perovskite quantum dots (QDs) have attracted wide attention from researchers. Despite tremendous progress has been made during the past several years, the commercialization of perovskite QDs-based LEDs (PeQLEDs) is still plagued by the instability. The ion migration in halide perovskites is recognized as the key factor causing the performance degradation of PeQLEDs. In this review, the elements species of ion migration, the effects of ion migration on device performance and stability, and effective strategies to hinder/mitigate ion migration in PeQLEDs are successively discussed. Finally, the forward insights on the future research are highlighted.

Key words: perovskite quantum dots, light-emitting diodes, ion migration, stability

中图分类号:  (Light-emitting devices)

  • 85.60.Jb
61.82.Rx (Nanocrystalline materials) 31.30.J- (Relativistic and quantum electrodynamic (QED) effects in atoms, molecules, and ions) 42.60.Lh (Efficiency, stability, gain, and other operational parameters)