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Layer Identification of Colorful Black Phosphorus
Author(s) -
Chen Hongye,
Fei Wenwen,
Zhou Jianxin,
Miao Chunyang,
Guo Wanlin
Publication year - 2017
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201602336
Subject(s) - black phosphorus , identification (biology) , phosphorus , layer (electronics) , nanotechnology , materials science , environmental science , optoelectronics , biology , botany , metallurgy
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/SiO 2 /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.