Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8160744 | Physica B: Condensed Matter | 2018 | 12 Pages |
Abstract
We have developed an easy and efficient method for exfoliating few-layer sheets of black phosphorus (BP) in N-methyl-2-pyrrolidone, using ultra-high pressure homogenization (UPH). The BP was first exfoliated into sheets that were a few atomic layers thick, using a homogenizer for only 30â¯min. Next, a double centrifugation procedure was used to separate the material into few-layer nanosheets that were examined by X-ray diffraction, atomic force microscopy (AFM), transmission electron microscopy (TEM), high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM), and energy-dispersive X-ray (EDX) spectroscopy. The results show that the products are specimens of phosphorene that are only a few-layer thick.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Qing-Qing Guan, Hua-Jing Zhou, Ping Ning, Pei-Chao Lian, Bo Wang, Liang He, Xin-Sheng Chai,