Stable black phosphorus quantum dots for alkali PH sensor

OPTICS COMMUNICATIONS

卷:406

Article

Guo, Weilan¹  Song, Haizeng¹  Yan, Shancheng¹ 

[1] Nanjing Univ Posts & Telecommun, Sch Geog & Biol Informat, Nanjing 210023, Jiangsu, Peoples R China

关键词: Black phosphorus quantum dots;    Alkali sensor;    Liquid exfoliation method;    Functionalization treatment;   

DOI  :  10.1016/j.optcom.2017.05.081

来源: Elsevier

【 摘 要 】

Black phosphorus, as a new two-dimensional material has been widely used in sensors, photovoltaic devices, etc. However, thin layered black phosphorus chemically degrades rapidly under ambient and aqueous conditions, which hinders the application of it in the chemical sensors. In this work, stable black phosphorus quantum dots (BPQDs) in solution are successfully synthesized by functionalization with 4-nitrobenzene-diazonium (4-NBD). The stable BPQDs are investigated by TEM, AFM, Raman, and UV-absorption. As a potential application, the stable BPQDs are used as sensors in alkali solution, which exhibit outstanding performance. Our work paves the way towards a new application with BPQDs in solution. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free