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Perovskite quantum dots growth in situ in transparent medium for short wavelength shielding
Journal of the American Ceramic Society ( IF 3.5 ) Pub Date : 2020-03-31 , DOI: 10.1111/jace.17132
Ze Yang 1 , Lei Zhao 2 , Moxiang Li 3 , Qihua Yang 1 , Zhaohui Fang 1 , Liuli Yang 1 , Xue Yu 1 , Jianbei Qiu 1 , Yang Yang 3 , Xuhui Xu 1
Affiliation  

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, Eu3+‐doped CsPbBr3 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 CsPbBr3 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 Eu3+‐doped CsPbBr3 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.

中文翻译:

钙钛矿量子点在透明介质中原位生长,用于短波屏蔽

高能紫外线(UV)和蓝光(短波长)辐射被证明对人眼,皮肤和生物基因组有害。然而,开发有效的屏蔽材料以提供对短波长的保护仍然是巨大的挑战。在这里,事实证明,嵌入在透明玻璃介质中的Eu 3+掺杂的CsPbBr 3具有良好的性能,可通过便捷高效的熔融淬火技术屏蔽200至475 nm的短波长。来自透明玻璃基质的CsPbBr 3量子点(QDs)原位生长的均匀分布确保了在长波长(520-800 nm)处的高透射率(> 90%)。另外,Eu 3+具有出色的短波屏蔽能力掺杂的CsPbBr 3玻璃陶瓷(EGC)甚至经受了长达480小时的加速老化测试。此外,由于获得的EGC可以完全阻挡蓝光,因此可以很好地保留A549细胞的细胞活力,这清楚地证明了EGC作为短波长屏蔽材料的应用前景广阔。
更新日期:2020-03-31
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