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High-performance large-area quasi-2D perovskite light-emitting diodes

Author

Listed:
  • Changjiu Sun

    (Nankai University)

  • Yuanzhi Jiang

    (Nankai University)

  • Minghuan Cui

    (Henan Normal University)

  • Lu Qiao

    (Beijing Normal University)

  • Junli Wei

    (Nankai University)

  • Yanmin Huang

    (Nankai University)

  • Li Zhang

    (Nankai University)

  • Tingwei He

    (Nankai University)

  • Saisai Li

    (Nankai University)

  • Hsien-Yi Hsu

    (City University of Hong Kong)

  • Chaochao Qin

    (Henan Normal University)

  • Run Long

    (Beijing Normal University)

  • Mingjian Yuan

    (Nankai University)

Abstract

Serious performance decline arose for perovskite light-emitting diodes (PeLEDs) once the active area was enlarged. Here we investigate the failure mechanism of the widespread active film fabrication method; and ascribe severe phase-segregation to be the reason. We thereby introduce L-Norvaline to construct a COO−-coordinated intermediate phase with low formation enthalpy. The new intermediate phase changes the crystallization pathway, thereby suppressing the phase-segregation. Accordingly, high-quality large-area quasi-2D films with desirable properties are obtained. Based on this, we further rationally adjusted films’ recombination kinetics. We reported a series of highly-efficient green quasi-2D PeLEDs with active areas of 9.0 cm2. The peak EQE of 16.4% is achieved in = 3, represent the most efficient large-area PeLEDs yet. Meanwhile, high brightness device with luminance up to 9.1 × 104 cd m−2 has achieved in = 10 film.

Suggested Citation

  • Changjiu Sun & Yuanzhi Jiang & Minghuan Cui & Lu Qiao & Junli Wei & Yanmin Huang & Li Zhang & Tingwei He & Saisai Li & Hsien-Yi Hsu & Chaochao Qin & Run Long & Mingjian Yuan, 2021. "High-performance large-area quasi-2D perovskite light-emitting diodes," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22529-x
    DOI: 10.1038/s41467-021-22529-x
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    Cited by:

    1. Tian Tian & Meifang Yang & Yuxuan Fang & Shuo Zhang & Yuxin Chen & Lianzhou Wang & Wu-Qiang Wu, 2023. "Large-area waterproof and durable perovskite luminescent textiles," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Guangyi Shi & Zongming Huang & Ran Qiao & Wenjing Chen & Zhijian Li & Yaping Li & Kai Mu & Ting Si & Zhengguo Xiao, 2024. "Manipulating solvent fluidic dynamics for large-area perovskite film-formation and white light-emitting diodes," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    3. Zhenchao Li & Ziming Chen & Zhangsheng Shi & Guangruixing Zou & Linghao Chu & Xian-Kai Chen & Chujun Zhang & Shu Kong So & Hin-Lap Yip, 2023. "Charge injection engineering at organic/inorganic heterointerfaces for high-efficiency and fast-response perovskite light-emitting diodes," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    4. Yongjie Liu & Chen Tao & Yu Cao & Liangyan Chen & Shuxin Wang & Pei Li & Cheng Wang & Chenwei Liu & Feihong Ye & Shengyong Hu & Meng Xiao & Zheng Gao & Pengbing Gui & Fang Yao & Kailian Dong & Jiashua, 2022. "Synergistic passivation and stepped-dimensional perovskite analogs enable high-efficiency near-infrared light-emitting diodes," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    5. Kang Wang & Zih-Yu Lin & Zihan Zhang & Linrui Jin & Ke Ma & Aidan H. Coffey & Harindi R. Atapattu & Yao Gao & Jee Yung Park & Zitang Wei & Blake P. Finkenauer & Chenhui Zhu & Xiangeng Meng & Sarah N. , 2023. "Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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