Layer Identification of Colorful Black Phosphorus. Issue 5 (18th November 2016)

• Record Type: Journal Article
• Authors: Chen, Hongye; Fei, Wenwen; Zhou, Jianxin; Miao, Chunyang; Guo, Wanlin
• Is Part Of: Small. Volume 13:Issue 5(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-11-18
• Subjects: black phosphorus -- colors -- layer numbers -- monochromatic light -- optical methods; Nanotechnology -- Periodicals; Nanoparticles -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1002/smll.201602336
• Languages: English
• ISSNs: 1613-6810

Abstract

Abstract : A quick method for estimating the layer number of black phosphorus is demonstrated by simple color‐comparison using optical microscope in this paper. A thickness‐dependent reflection model of black phosphorus/SiO2 /Si is constructed and a colorbar confirmed by experiments is obtained for quick identifying layer number. The enhanced visibility affected by substrates or wavelength of light is further verified by calculating the contrast.