Abstract

Inorganic halogen perovskite quantum dots not only have high fluorescence quantum efficiency, but also can emit polarized light in solution or thin film. These excellent performances make perovskite quantum dots promising to be used in next-generation displays. In this study, we develop laser direct writing technology to improve the emitted light polarization of ${\rm{CsPbClB}}{{\rm{r}}_2}$ quantum dot film. Without using an additional polarizer, we prove that the polarization degree is maximumly increased by about 56%, and the reasons are analyzed from three perspectives: laser scanning space, laser power, and film thickness. In addition, the lifetime of the fluorescence is also greatly improved after laser treatment. The results we obtain provide the possibility for production of a new generation of displays.

© 2021 Optical Society of America

Broadband absorption mechanism based on quantum dot glass for filtering field

Panpan Li, Yongmin Duan, Yang Lu, Shiqing Xu, and Junjie Zhang
Opt. Lett. 46(6) 1213-1216 (2021)

Pure green emission self-crystallization CsPbBr₃ quantum dot glass with Ag⁺ doping for stable light-emitting devices

Yang Lu, Panpan Li, Wenqing Xie, Yongmin Duan, Shiqing Xu, and Junjie Zhang
Opt. Lett. 46(11) 2597-2600 (2021)

Deep-ultraviolet photodetector based on pulsed-laser-deposited Cs₃Cu₂I₅ films/n-Si heterojunction

Xiaoxuan Li, Lichun Zhang, Xiaoyu Zhou, Cheng Wang, Zhiying Zhou, Shunli He, Dan Tian, Zhichao Ren, Chuanlu Yang, and Fengzhou Zhao
Opt. Lett. 46(17) 4252-4255 (2021)

Highly stable CsPbBr₃ perovskite quantum dot-doped tellurite glass nanocomposite scintillator

Luyue Niu, Sikai Wang, Zexuan Sui, Yushou Song, Lei Zhao, Lu Liu, Jing Ren, and Jianzhong Zhang
Opt. Lett. 46(14) 3448-3451 (2021)

Multiphoton upconversion and non-resonant optical nonlinearity in perovskite quantum dot doped glasses

Chenyang Zhu, Lin Wang, Di Zhao, Yuting Yang, Xiaofeng Liu, Beibei Xu, Zhousu Xu, and Jianrong Qiu
Opt. Lett. 46(20) 5216-5219 (2021)