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

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

doi:10.1021/acsomega.0c05139

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

ACS Omega. 2021 Jan 21;6(4):2836-2845. doi: 10.1021/acsomega.0c05139. eCollection 2021 Feb 2.

Authors

Affiliations

¹ Institute of Photonic System, College of Photonics, National Chiao Tung University, No. 301, Gaofa 3rd Road, Guiren District, Tainan 71150, Taiwan.
² Department of Applied Chemistry, National Chiao Tung University, No. 1001, University Road, Hsinchu 30010, Taiwan.
³ Department of Material Science and Engineering, National Tsing Hua University, Delta Building 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, ROC.
⁴ Department of Photonics and Graduate Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, No. 1001, University Road, Hsinchu 30010, Taiwan.

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.