Layer Identification of Colorful Black Phosphorus

Layer Identification of Colorful Black Phosphorus

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 identi...

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Veröffentlicht in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2017-02, Vol.13 (5), p.np-n/a
Hauptverfasser: Chen, Hongye, Fei, Wenwen, Zhou, Jianxin, Miao, Chunyang, Guo, Wanlin
Format: Artikel
Sprache:eng
Schlagworte:
black phosphorus
colors
Estimating
layer numbers
Mathematical models
monochromatic light
Nanotechnology
optical methods
Optical microscopes
Phosphorus
Reflection
Silicon dioxide
Visibility
Wavelengths
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Beschreibung
Zusammenfassung: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.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.201602336