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Small. 2013 Oct 11;9(19):3253-8. doi: 10.1002/smll.201300049. Epub 2013 Apr 2.

Seeing two-dimensional sheets on arbitrary substrates by fluorescence quenching microscopy.

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  • 1Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA.

Abstract

Fluorescence quenching microscopy (FQM) is demonstrated as a low-cost and high-throughput technique for seeing graphene-like 2D sheets such as MoS2 . FQM provides high contrast and layer resolution comparable to those of scanning electron microscopy, but allows the imaging of samples deposited on arbitrary substrates, including non-conductive substrates such as quartz. Solution fluorescence quenching studies suggest that FQM should be feasible for many other 2D materials such as WS2 , Bi2 Te3 , MoSe2 , NbSe2 , and TaS2 .

Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

KEYWORDS:

2D materials; Förster resonance energy transfer; fluorescence quenching microscopy; graphene; molybdenum disulfide

[PubMed - indexed for MEDLINE]
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