Hunting for Monolayer Boron Nitride: Optical and Raman Signatures

Hunting for Monolayer Boron Nitride: Optical and Raman Signatures

The identification of single‐ and few‐layer boron nitride is described. Its optical contrast is much smaller than that of graphene, but even monolayers are discernable by optimizing viewing conditions. The number of layers in thicker crystals can be counted by exploiting an integer‐step increase in...

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Veröffentlicht in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2011-02, Vol.7 (4), p.465-468
Hauptverfasser: Gorbachev, Roman V., Riaz, Ibtsam, Nair, Rahul R., Jalil, Rashid, Britnell, Liam, Belle, Branson D., Hill, Ernie W., Novoselov, Kostya S., Watanabe, Kenji, Taniguchi, Takashi, Geim, Andre K., Blake, Peter
Format: Artikel
Sprache:eng
Schlagworte:
Boron Compounds - chemistry
boron nitride
graphene
Microscopy
Nanostructures - chemistry
optical properties
Raman spectra
Spectrum Analysis, Raman - methods
two-dimensional crystals
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Zusammenfassung:The identification of single‐ and few‐layer boron nitride is described. Its optical contrast is much smaller than that of graphene, but even monolayers are discernable by optimizing viewing conditions. The number of layers in thicker crystals can be counted by exploiting an integer‐step increase in the Raman intensity and optical contrast.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.201001628