@article{8e158bed83b249c199bffa579a736ed8,
title = "Rare-Earth-Based Perovskite Cs2AgScCl6:Bi for Strong Full Visible Spectrum Emission",
abstract = "Most luminescent materials can only emit light with a particular wavelength. In general, various phosphors with complementary spectral ranges are mixed to realize full-spectrum lighting. Therefore, the integration of luminescence at different wavebands in the single component matrix to obtain white emission is the optimal strategy for designing lighting materials. Thus, Sc-based double perovskite Cs2AgScCl6:xBi with adjustable free exciton and self-trapped exciton luminescence is synthesized by the vacuum evaporation assisted synthetic method. This perovskite can be used as white phosphor to assemble a high-quality white lighting device. Density functional theory calculations have revealed that the introduction of Bi optimizes the electron transfer and suppresses the defects in Cs2AgScCl6, which leads to excellent luminescent performance in a broad wavelength range. This work provides a new concept and strategy for the design and preparation of rare-earth optical perovskites in the future.",
keywords = "exciton regulating, excitonic luminescence, full spectra, rare-earth perovskites, white emissions",
author = "Zhichao Zeng and Mingzi Sun and Shuai Zhang and Hongtu Zhang and Xiaomeng Shi and Shi Ye and Bolong Huang and Yaping Du and Yan, \{Chun Hua\}",
note = "Funding Information: The authors would like to gratefully acknowledge the financial support from the National Key R\&D Program of China (2021YFA1501101), National Natural Science Foundation of China (21971117, 21771156), Functional Research Funds for the Central Universities, Nankai University (63186005), Tianjin Key Lab for Rare Earth Materials and Applications (ZB19500202), the Open Funds (No. RERU2019001) of the State Key Laboratory of Rare Earth Resource Utilization, the National Key R\&D Program of China (No. 2017YFA0208000), 111 Project (No. B18030) from China, the Outstanding Youth Project of Tianjin Natural Science Foundation (20JCJQJC00130), the Key Project of Tianjin Natural Science Foundation (20JCZDJC00650), the NSFC/RGC Joint Research Scheme Project (N\_PolyU502/21), and the funding for Projects of Strategic Importance of The Hong Kong Polytechnic University (Project Code: 1‐ZE2V). The authors would like to thank Prof. Chunhai Wang from Northwestern Polytechnical University and Mingxing Chen at Analytical Instrumentation Center of Peking University for their support in structural analysis and spectral measurement. Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH.",
year = "2022",
month = may,
day = "22",
doi = "10.1002/adfm.202204780",
language = "English",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "John Wiley and Sons Inc.",
}