Nanoscale heterophase regulation enables sunlight-like full-spectrum white electroluminescence

Jiawei Chen, Kangyu Ji, Linjie Dai, Hengyang Xiang, Zhongzheng Yu, Affan N. Iqbal, Jian Wang, Xingyue Ma, Renjun Guo, Miguel Anaya, Xiufeng Song, Yang Lu, Yu-Hsien Chiang, Weijin Li, Yalong Shen, Xiyu Luo, Alessandro Mirabelli, Yuanzhuang Cheng, Xinrui Chen, Dongxin Ma, Zhiyong Fan (), Yurong Yang (), Lian Duan (), Samuel D. Stranks () and Haibo Zeng ()
Additional contact information
Jiawei Chen: Nanjing University of Science and Technology
Kangyu Ji: 19 JJ Thomson Avenue
Linjie Dai: 19 JJ Thomson Avenue
Hengyang Xiang: Nanjing University of Science and Technology
Zhongzheng Yu: 19 JJ Thomson Avenue
Affan N. Iqbal: 19 JJ Thomson Avenue
Jian Wang: Nanjing University
Xingyue Ma: Nanjing University
Renjun Guo: 19 JJ Thomson Avenue
Miguel Anaya: 19 JJ Thomson Avenue
Xiufeng Song: Nanjing University of Science and Technology
Yang Lu: 19 JJ Thomson Avenue
Yu-Hsien Chiang: 19 JJ Thomson Avenue
Weijin Li: Nanjing University of Science and Technology
Yalong Shen: Nanjing University of Science and Technology
Xiyu Luo: Tsinghua University
Alessandro Mirabelli: 19 JJ Thomson Avenue
Yuanzhuang Cheng: Tsinghua University
Xinrui Chen: Nanjing University of Science and Technology
Dongxin Ma: Tsinghua University
Zhiyong Fan: The Hong Kong University of Science and Technology
Yurong Yang: Nanjing University
Lian Duan: Tsinghua University
Samuel D. Stranks: 19 JJ Thomson Avenue
Haibo Zeng: Nanjing University of Science and Technology

Nature Communications, 2025, vol. 16, issue 1, 1-11

Abstract: Abstract Traditional white light-emitting diodes operate by exciting phosphors using blue light-emitting diodes, leading to the absence of specific colour bands compared with the visible light region of the sunlight spectrum (400–780 nm), and excess blue light increases the risk of harmful effects on ecosystems and organisms. Here, we precisely design and regulate heterophase γ/δ-CsPb(I/Cl)3 at the nanoscale for uniform heterophase distribution, balanced flow of charges and tunable spectrum. Then, γ/δ-CsPb(I/Cl)3 directly excited by electricity shows full-spectrum white electroluminescence covering 400–780 nm with standard Commission Internationale de l’Eclairage coordinates of (0.33, 0.33), a Colour Rendering Index of 95, a Correlated Colour Temperature of 5829 K and a Delta u,v of −3 × 10−4, accompanied with balanced white light composition (Melanopic ratio = 1.004). The match indices of such five core indicators to standard sunlight reach 100%, 95% (97% for R9), 99.5%, 99.97% and 99.6%, respectively, far ahead of as-fabricated commercial white light-emitting diodes.

Date: 2025
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DOI: 10.1038/s41467-025-58743-0

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