Facile and efficient preparation of high-quality black phosphorus quantum dot films for sensing applications

Yan Zhao; Jie Huang; Ran Zhang; Yinzhou Yan; Yongzhe Zhang

doi:10.1039/c9ra10900e

Facile and efficient preparation of high-quality black phosphorus quantum dot films for sensing applications

RSC Adv. 2020 Apr 1;10(23):13379-13385. doi: 10.1039/c9ra10900e.

Authors

Yan Zhao^{1

2}, Jie Huang^{1

2}, Ran Zhang^{1

2}, Yinzhou Yan^{1

2}, Yongzhe Zhang³

Affiliations

¹ Beijing Engineering Research Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology Beijing 100124 China zhaoyan@bjut.edu.cn.
² Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Institute of Laser Engineering, Beijing University of Technology Beijing 100124 China.
³ College of Materials Science and Engineering, Beijing University of Technology Beijing 100124 China.

Abstract

In this study, black phosphorus quantum dots (BPQDs) are synthesized by improved ultrasonic-assisted liquid exfoliation. The as-prepared BPQDs are deposited on large-area conductive substrates by electrophoretic deposition, and exhibit high-sensitivity humidity sensing and excellent electrical properties. The results offer not only a facile and efficient method to synthesise stable BPQDs films, but also a new opportunity to develop humidity sensors and nano-electronic devices.