Improved Long-Term Reliability of a Silica-Encapsulated Perovskite Quantum-Dot Light-Emitting Device with an Optically Pumped Remote Film Package

采用光泵远程薄膜封装的二氧化硅封装钙钛矿量子点发光装置的长期可靠性得到提高

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作者:Shun-Chieh Hsu, Yu-Ming Huang, Chung-Ping Huang, Ting-Yu Lee, Yu-Yun Cho, Yin-Hsin Liu, Arumugam Manikandan, Yu-Lun Chueh, Teng-Ming Chen, Hao-Chung Kuo, Chien-Chung Lin

Abstract

In this study, inorganic perovskite (CsPbBr3) quantum dots are wrapped in SiO2 to provide better performance against external erosion. Long-term storage (250 days) is demonstrated with very little changes in the illumination capability of these quantum dots. While in the continuous aging procedure, different package architectures can achieve very different lifetimes. As long as 6000 h of lifetime can be expected from these quantum dots, but the blue shift of emission wavelength still needs more investigation.

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