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Multimodal Luminescent Yb 3+ /Er 3+ /Bi 3+ ‐Doped Perovskite Single Crystals for X‐ray Detection and Anti‐Counterfeiting
Author(s) -
Zeng Zhichao,
Huang Bolong,
Wang Xia,
Lu Lu,
Lu Qiuyang,
Sun Mingzi,
Wu Tong,
Ma Tengfei,
Xu Jun,
Xu Yueshan,
Wang Shuao,
Du Yaping,
Yan ChunHua
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202004506
Subject(s) - luminescence , materials science , doping , persistent luminescence , excitation , perovskite (structure) , photon upconversion , optoelectronics , thermal stability , nanotechnology , chemical engineering , crystallography , physics , chemistry , thermoluminescence , quantum mechanics , engineering
Abstract Anti‐counterfeiting techniques have become a global topic since they is correlated to the information and data safety, in which multimodal luminescence is one of the most desirable candidates for practical applications. However, it is a long‐standing challenge to actualize robust multimodal luminescence with high thermal stability and humid resistance. Conventionally, the multimodal luminescence is usually achieved by the combination of upconversion and downshifting luminescence, which only responds to the electromagnetic waves in a limited range. Herein, the Yb 3+ /Er 3+ /Bi 3+ co‐doped Cs 2 Ag 0.6 Na 0.4 InCl 6 perovskite material is reported as an efficient multimodal luminescence material. Beyond the excitation of ultraviolet light and near‐infrared laser (980 nm), this work extends multimodal luminescence to the excitation of X‐ray. Besides the flexible excitation sources, this material also shows the exceptional luminescence performance, in which the X‐ray detection limit reaches the level of nGy s −1 , indicating a great potential for further application as a colorless pigment in the anti‐counterfeiting field. More importantly, the obtained double perovskite features high stability against both humidity and temperature up to 400 °C. This integrated multifunctional luminescent material provides a new directional solution for the development of multifunctional optical materials and devices.