Laser & Optoelectronics Progress, Volume. 60, Issue 15, 1500004(2023)
Research Progress in Surface Modification Engineering and Application of PbSe Quantum Dots
Lead selenide colloidal quantum dots (PbSe QDs) have huge application prospects in room temperature infrared optoelectronic devices due to their excellent properties such as enhanced multiple exciton generation, large exciton Bohr radius, wide range of the tunable wavelength, and high photoluminescence quantum yield. However, the problems of poor photoluminescence stability and low efficiency of PbSe QDs synthesized via the solution method further limit their development owing to the oxidation of quantum dot surfaces and poor carrier transport performance. Therefore, a systematic discussion of the effects of the surface modification engineering of PbSe QDs on its mobility, trap states, energy level shift, photoluminescence efficiency, and stability modification is presented in this paper. Additionally, a summary of the application of surface modification engineering in PbSe QDs solar cells, light-emitting diodes, and photodetectors is provided. Finally, the problems existing in the practical application of optoelectronic devices and future research directions are outlined.
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Dan Yang, Dengkui Wang, Xuan Fang, Dan Fang, Li Yang, Chao Xiang, Jinhua Li, Xiaohua Wang. Research Progress in Surface Modification Engineering and Application of PbSe Quantum Dots[J]. Laser & Optoelectronics Progress, 2023, 60(15): 1500004
Category: Reviews
Received: Jun. 16, 2022
Accepted: Aug. 4, 2022
Published Online: Aug. 11, 2023
The Author Email: Wang Dengkui (wangdk@cust.edu.cn), Fang Xuan (fangxuan110@126.com)