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Perovskite quantum dots growth in situ in transparent medium for short wavelength shielding
Author(s) -
Yang Ze,
Zhao Lei,
Li Moxiang,
Yang Qihua,
Fang Zhaohui,
Yang Liuli,
Yu Xue,
Qiu Jianbei,
Yang Yang,
Xu Xuhui
Publication year - 2020
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17132
Subject(s) - materials science , wavelength , transmittance , electromagnetic shielding , optoelectronics , quantum dot , perovskite (structure) , ultraviolet , doping , chemical engineering , composite material , engineering
High energy ultraviolet (UV) and blue light (short wavelength) radiation is proved to be harmful to human eyes, skin, and biological genomes. However, developing effective shielding materials providing protect from short wavelength is still a great challenge. Here, Eu 3+ ‐doped CsPbBr 3 embedded in a transparent glass medium is proved to shield the short wavelength from 200 to 475 nm with high performance, which is prepared by a facile and efficient melting‐quenching technique. The uniform distribution of the CsPbBr 3 quantum dots (QDs) growth in situ from the transparent glass matrix ensures the high transmittance (>90%) at the long wavelength (520‐800 nm). In addition, the excellent short wavelength shielding ability of the Eu 3+ ‐doped CsPbBr 3 glass ceramics (EGC) is demonstrated even suffered with accelerated weathering tests as long as 480 hours. Moreover the cell viability of A549 cells is well preserved thanks to the completely blocked blue light by the as‐obtained EGC, which unambiguously demonstrates the promising application of EGC as short wavelength shielding materials.