Nanoscale heterophase regulation enables sunlight-like full-spectrum white electroluminescence
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)<sub>3</sub> at the nanoscale for uniform heterophase distribution, balanced flow of charges and tunable spectrum. Then, γ/δ-CsPb(I/Cl)<sub>3</sub> 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<sup>-4</sup>, 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 R<sub>9</sub>), 99.5%, 99.97% and 99.6%, respectively, far ahead of as-fabricated commercial white light-emitting diodes.
Authors
- Dongxin Ma (ORCID: https://orcid.org/0000-0002-9790-5951)
- Xingyue Ma (ORCID: https://orcid.org/0000-0002-4307-2667)
- Yurong Yang (ORCID: https://orcid.org/0000-0002-6529-3583)
- Xiufeng Song (ORCID: https://orcid.org/0000-0002-7179-1431)
- Yu‐Hsien Chiang (ORCID: https://orcid.org/0000-0003-2767-3056)
- Affan N. Iqbal (ORCID: https://orcid.org/0000-0002-7582-9011)
- Zhongzheng Yu (ORCID: https://orcid.org/0000-0003-0941-3357)
- Renjun Guo (ORCID: https://orcid.org/0000-0003-1116-3334)
- Miguel Anaya (ORCID: https://orcid.org/0000-0002-0384-5338)
- Jian Wang (ORCID: https://orcid.org/0000-0002-4515-9782)
- Alessandro J. Mirabelli (ORCID: https://orcid.org/0000-0001-7101-4926)
- Hengyang Xiang (ORCID: https://orcid.org/0000-0001-5614-9275)
- Zhiyong Fan (ORCID: https://orcid.org/0000-0002-5397-0129)
- Yalong Shen
- Linjie Dai (ORCID: https://orcid.org/0000-0002-1467-3041)
- Kangyu Ji (ORCID: https://orcid.org/0000-0002-1278-3212)
- Lian Duan (ORCID: https://orcid.org/0000-0003-2750-0972)
- Weijin Li (ORCID: https://orcid.org/0000-0002-5850-1241)
- Samuel D. Stranks (ORCID: https://orcid.org/0000-0002-8303-7292)
- Yuanzhuang Cheng (ORCID: https://orcid.org/0009-0009-9577-1580)
- Xiyu Luo (ORCID: https://orcid.org/0000-0003-4767-6457)
- Jiawei Chen (ORCID: https://orcid.org/0000-0003-3751-8367)
- Haibo Zeng (ORCID: https://orcid.org/0000-0002-0260-1059)
- Xinrui Chen (ORCID: https://orcid.org/0009-0009-9477-7454)
- Yang Lu (ORCID: https://orcid.org/0000-0002-2793-2065)
Institutions
- Hong Kong University of Science and Technology (HK)
- University of Cambridge (GB)
- Nanjing University of Science and Technology (CN)
- Collaborative Innovation Center of Advanced Microstructures (CN)
- Massachusetts Institute of Technology (US)
- Nanjing University (CN)
- University of Hong Kong (HK)
- Tsinghua University (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-04-16
- DOI
- https://doi.org/10.1038/s41467-025-58743-0
- Citations
- 17
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 12.42
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- Government of Jiangsu Province
- Tata Sons
- Engineering and Physical Sciences Research Council
- National Key Research and Development Program of China