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Nanoscale. 2016 Aug 18;8(33):15132-6. doi: 10.1039/c6nr04773d.

Small molecule-assisted fabrication of black phosphorus quantum dots with a broadband nonlinear optical response.

Author information

1
State Key Laboratory of Applied Organic Chemistry (SKLAOC), Lanzhou University, Lanzhou, 730000, China. qiangwang@lzu.edu.cn haoli.zhang@lzu.edu.cn and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China and Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, China.
2
Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
3
State Key Laboratory of Applied Organic Chemistry (SKLAOC), Lanzhou University, Lanzhou, 730000, China. qiangwang@lzu.edu.cn haoli.zhang@lzu.edu.cn.
4
State Key Laboratory of Applied Organic Chemistry (SKLAOC), Lanzhou University, Lanzhou, 730000, China. qiangwang@lzu.edu.cn haoli.zhang@lzu.edu.cn and Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, China.

Abstract

Ultrathin BP QDs with a uniform size of ∼3.4 nm were prepared via small molecule-assisted liquid phase exfoliation and they exhibited superior broadband nonlinear saturable absorption promising for nonlinear optical applications. Laser photolysis measurement implied that the nonlinear response origin was related to the long-lived electron-hole pairs delocalized within the BP QDs.

PMID:
27491959
DOI:
10.1039/c6nr04773d

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