Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes

Mubing Yu; Tingxiao Qin; Gang Gao; Kelei Zu; Dongming Zhang; Nan Chen; Dengke Wang; Yong Hua; Hong Zhang; Yong-Biao Zhao; Jiaqi Zhu

doi:10.1038/s41377-025-01768-3

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Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes

Original Articles

- Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes
- Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes
- LSA 2025年14卷第4期页码：1041-1050
- Affiliations：
  
  1.National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, 150080 Harbin, China
  2.Zhengzhou Research Institute, Harbin Institute of Technology, 450046 Zhengzhou, China
  3.Beijing Academy of Quantum Information Sciences, 100193 Beijing, China
  4.Center for Optoelectronics Engineering Research, School of Physics and Astronomy, Yunnan University, 650500 Kunming, China
  5.Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, 650500 Kunming, China
  6.Key Laboratory of Micro-systems and Micro-structures Manufacturing Ministry of Education, Harbin Institute of Technology, 150080 Harbin, China
- Author bio：
  
  Gang Gao (gaogang@hit.edu.cn)
  Yong-Biao Zhao (yzhao@ynu.edu.cn)
  Jiaqi Zhu (zhujq@hit.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-01768-3
  中图分类号：
- 收稿日期：2024-09-26，
  
  修回日期：2025-01-16，
  
  录用日期：2025-01-25，
  
  网络出版日期：2025-02-26，
  
  纸质出版日期：2025-04-30
- Accepted：
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Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes[J]. LSA, 2025,14(4):1041-1050.

Yu, M. B. et al. Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes. Light: Science & Applications, 14, 1041-1050 (2025).
Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes[J]. LSA, 2025,14(4):1041-1050. DOI： 10.1038/s41377-025-01768-3.

Yu, M. B. et al. Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes. Light: Science & Applications, 14, 1041-1050 (2025). DOI： 10.1038/s41377-025-01768-3.

摘要

Abstract

Deep-blue perovskite light-emitting diodes (PeLEDs) based on reduced-dimensional perovskites (RDPs) still face a few challenges including severe trap-assisted nonradiative recombination

sluggish exciton transfer

and undesirable bathochromic shift of the electroluminescence spectra

impeding the realization of high-performance PeLEDs. Herein

an in situ chlorination (isCl) post-treatment strategy was employed to regulate phase reconstruction and renovate multiple defects of RDPs

leading to superior carrier cooling of 0.88 ps

extraordinary exciton binding energy of 122.53 meV

and higher photoluminescence quantum yield of 60.9% for RDP films with deep-blue emission at 450 nm. The phase regulation is accomplished via fluorine-derived hydrogen bonds that suppress the formation of small-

phases. Multiple defects

including halide vacancies (shallow-state defects) and lead-chloride antisite defects (deep-state defects)

are renovated via C=O coordination and hydroxy-group-derived hydrogen bonds. Consequently

deep-blue PeLEDs with a record maximum external quantum efficiency of 6.17% and stable electroluminescence at 454 nm were demonstrated

representing the best-performing deep-blue Pe

LEDs.

关键词

Keywords

references

Deng, S. B. et al. Long-range exciton transport and slow annihilation in two-dimensional hybrid perovskites. Nat. Commun. 11 , 664 (2020)..

Chu, Z. M. et al. Blue light-emitting diodes based on quasi-two-dimensional perovskite with efficient charge injection and optimized phase distribution via an alkali metal salt. Nat. Electron. 6 , 360–369 (2023)..

Yang, F. et al. Rational adjustment to interfacial interaction with carbonized polymer dots enabling efficient large-area perovskite light-emitting diodes. Light Sci. Appl. 12 , 119 (2023)..

Yu, Y. et al. Red perovskite light-emitting diodes: recent advances and perspectives. Laser Photon. Rev. 17 ,2200608 (2023)..

Yu, Y. et al. Regulating perovskite crystallization through interfacial engineering using a zwitterionic additive potassium sulfamate for efficient pure-blue light-emitting diodes. Angew. Chem. Int. Ed. 136 , e202319730 (2024)..

Karlsson, M. et al. Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes. Nat. Commun. 12 , 361 (2021)..

Cheng, L. et al. Multiple-quantum-well perovskites for high-performance light-emitting diodes. Adv. Mater. 32 , 1904163 (2020)..

Zhang, L. J. et al. Manipulation of charge dynamics for efficient and bright blue perovskite light-emitting diodes with chiral ligands. Adv. Mater. 35 , 2302059 (2023)..

Xia, Y. et al. Reduced confinement effect by isocyanate passivation for efficient sky-blue perovskite light-emitting diodes. Adv. Funct. Mater. 32 , 2208538 (2022)..

Liu, S. C. et al. Zwitterions narrow distribution of perovskite quantum wells for blue light-emitting diodes with efficiency exceeding 15%. Adv. Mater. 35 , 2208078 (2023)..

Li, Y. H. et al. In situ hydrolysis of phosphate enabling sky-blue perovskite light-emitting diode with eqe approaching 16.32%. ACS Nano 18 , 6513–6522 (2024)..

Tong, Y. F. et al. In situ halide exchange of cesium lead halide perovskites for blue light-emitting diodes. Adv. Mater. 35 , 2207111 (2023)..

Wu, X. X. et al. Trap states in lead iodide perovskites. J. Am. Chem. Soc. 137 , 2089–2096 (2015)..

Yuan, S. et al. Efficient blue electroluminescence from reduced-dimensional perovskites. Nat. Photon. 18 , 425–431 (2024)..

Guan, X. et al. Targeted elimination of tetravalent-Sn-induced defects for enhanced efficiency and stability in lead-free NIR-II perovskite LEDs. Nat. Commun. 15 , 9913 (2024)..

Shen, Y. et al. Unveiling the carrier dynamics of perovskite light-emitting diodes via transient electroluminescence. J. Phys. Chem. Lett. 15 , 7916–7923 (2024)..

Ma, D. X. et al. Chloride insertion–immobilization enables bright, narrowband, and stable blue-emitting perovskite diodes. J. Am. Chem. Soc. 142 , 5126–5134 (2020)..

Zou, G. R. et al. Color-stable deep-blue perovskite light-emitting diodes based on organotrichlorosilane post-treatment. Adv. Funct. Mater. 31 , 2103219 (2021)..

Yuan, S. et al. Efficient and spectrally stable blue perovskite light-emitting diodes employing a cationic π-conjugated polymer. Adv. Mater. 33 , 2103640 (2021)..

Zheng, X. P. et al. Defect passivation in hybrid perovskite solar cells using quaternary ammonium halide anions and cations. Nat. Energy 2 , 17102 (2017)..

Zhang, C. C. et al. Perovskite films with reduced interfacial strains via a molecular-level flexible interlayer for photovoltaic application. Adv. Mater. 32 , 2001479 (2020)..

Wang, T. et al. Deep defect passivation and shallow vacancy repair via an ionic silicone polymer toward highly stable inverted perovskite solar cells. Energy Environ. Sci. 15 , 4414–4424 (2022)..

Luo, X. Y. et al. Effects of local compositional heterogeneity in mixed halide perovskites on blue electroluminescence. Matter 7 , 1054–1070 (2024)..

Zhang, J. et al. Sulfonic zwitterion for passivating deep and shallow level defects in perovskite light-emitting diodes. Adv. Funct. Mater. 32 , 2111578 (2022)..

Liu, Y. J. et al. A multifunctional additive strategy enables efficient pure-blue perovskite light-emitting diodes. Adv. Mater. 35 , 2302161 (2023)..

Qiu, J. M. et al. Robust molecular-dipole-induced surface functionalization of inorganic perovskites for efficient solar cells. J. Mater. Chem. A 10 , 1821–1830 (2022)..

Liu, X. X. et al. Full defects passivation enables 21% efficiency perovskite solar cells operating in air. Adv. Energy Mater. 10 , 2001958 (2020)..

Xie, L. L. et al. Highly efficient synthesis of 4, 4-dimethylsterol oleates using acyl chloride method through esterification. Food Chem. 364 , 130140 (2021)..

Filler, M. A. et al. Formation of surface-bound acyl groups by reaction of acyl halides on Ge (100)-2×1. J. Phys. Chem. B 110 , 4115–4124 (2006)..

Han, D. Y. et al. Tautomeric mixture coordination enables efficient lead-free perovskite LEDs. Nature 622 , 493–498 (2023)..

Schmidt, T., Lischka, K. & Zulehner, W. Excitation-power dependence of the near-band-edge photoluminescence of semiconductors. Phys. Rev. B 45 , 8989–8994 (1992)..

Wang, L. et al. Regulated perovskite crystallization for efficient blue light-emitting diodes via interfacial molecular network. Adv. Funct. Mater. 34 , 2401297 (2024)..

Li, X. Y. et al. Bright colloidal quantum dot light-emitting diodes enabled by efficient chlorination. Nat. Photon. 12 , 159–164 (2018)..

Li, M. H. et al. High-efficiency perovskite solar cells with improved interfacial charge extraction by bridging molecules. Adv. Mater. 36 , 2406532 (2024)..

Dong, J. C. et al. Deep-blue electroluminescence of perovskites with reduced dimensionality achieved by manipulating adsorption-energy differences. Angew. Chem. Int. Ed. 61 , e202210322 (2022)..

Wang, B. et al. Low-dimensional phase regulation to restrain non-radiative recombination for sky-blue perovskite LEDs with EQE exceeding 15%. Angew. Chem. Int. Ed. 135 , e202219255 (2023)..

Wang, X. et al. Engineering fluorinated-cation containing inverted perovskite solar cells with an efficiency of > 21% and improved stability towards humidity. Nat. Commun. 12 , 52 (2021)..

Liu, Y. et al. Wide-bandgap perovskite quantum dots in perovskite matrix for sky-blue light-emitting diodes. J. Am. Chem. Soc. 144 , 4009–4016 (2022)..

Chu, Z. M. et al. Large cation ethylammonium incorporated perovskite for efficient and spectra stable blue light-emitting diodes. Nat. Commun. 11 , 4165 (2020)..

Mei, X. Y. et al. In situ ligand compensation of perovskite quantum dots for efficient light-emitting diodes. ACS Energy Lett. 8 , 4386–4396 (2023)..

Qi, Z. W. et al. Ligand-pinning induced size modulation of CsPbI 3 perovskite quantum dots for red light-emitting diodes. Adv. Funct. Mater. 34 , 2405679 (2024)..

Qiu, J. M. et al. Dipola r chemical bridge induced CsPbI 3 perovskite solar cells with 21.86% efficiency. Angew. Chem. Int. Ed. 63 , e202401751 (2024)..

Fu, Y. X. et al. Insight into diphenyl phosphine oxygen-based molecular additives as defect passivators toward efficient quasi-2D perovskite light-emitting diodes. ACS Appl. Mater. Interfaces 15 , 10877–10884 (2023)..

Shen, Y. et al. Interfacial potassium-guided grain growth for efficient deep-blue perovskite light-emitting diodes. Adv. Funct. Mater. 31 , 2006736 (2021)..

Sun, M. N. et al. Mixed 2D/3D perovskite with fine phase control modulated by a novel cyclopentanamine hydrobromide for better stability in light-emitting diodes. Chem. Eng. J. 393 , 124787 (2020)..

Ma, D. X. et al. Distribution control enables efficient reduced-dimensional perovskite LEDs. Nature 599 , 594–598 (2021)..

Yu, M. B. et al. Modulating phase distribution and passivating surface defects of quasi-2D perovskites via potassium tetrafluoroborate for light-emitting diodes. Chem. Eng. J. 450 , 138021 (2022)..

Zhang, F. J. et al. High-performance blue perovskite light-emitting diodes enabled by synergistic effect of additives. Nano Lett. 24 , 1268–1276 (2024)..

Wang, C. H. et al. Dimension control of in situ fabricated CsPbClBr 2 nanocrystal films toward efficient blue light-emitting diodes. Nat. Commun. 11 , 6428 (2020)..

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