Optical identification of single- and few-layer MoS2 sheets

A simple approach is developed to identify the layer number of 2D MoS2 sheets. By using an optical imaging method combined with image analysis software, a high-contrast image of the MoS2 sheets can be extracted from the red (R) channel of the color optical microscopy image. The value of the intensit...

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Main Authors: Zhang, Qing, Zhang, Hua, Li, Hai, Lu, Gang, Yin, Zongyou, He, Qiyuan, Li, Hong
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/96610
http://hdl.handle.net/10220/10358
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-966102020-06-01T10:21:13Z Optical identification of single- and few-layer MoS2 sheets Zhang, Qing Zhang, Hua Li, Hai Lu, Gang Yin, Zongyou He, Qiyuan Li, Hong School of Materials Science & Engineering School of Electrical and Electronic Engineering A simple approach is developed to identify the layer number of 2D MoS2 sheets. By using an optical imaging method combined with image analysis software, a high-contrast image of the MoS2 sheets can be extracted from the red (R) channel of the color optical microscopy image. The value of the intensity difference in the grayscale image of the R channel between MoS2 sheets (1–3 layers) and the SiO2 substrate can be used to identify the layer number of the sheet. 2013-06-13T07:38:20Z 2019-12-06T19:32:59Z 2013-06-13T07:38:20Z 2019-12-06T19:32:59Z 2012 2012 Journal Article Li, H., Lu, G., Yin, Z., He, Q., Li, H., Zhang, Q., et al. (2012). Optical Identification of Single- and Few-Layer MoS2 Sheets. Small, 8(5), 682-686. 1613-6810 https://hdl.handle.net/10356/96610 http://hdl.handle.net/10220/10358 10.1002/smll.201101958 en Small © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
description A simple approach is developed to identify the layer number of 2D MoS2 sheets. By using an optical imaging method combined with image analysis software, a high-contrast image of the MoS2 sheets can be extracted from the red (R) channel of the color optical microscopy image. The value of the intensity difference in the grayscale image of the R channel between MoS2 sheets (1–3 layers) and the SiO2 substrate can be used to identify the layer number of the sheet.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Zhang, Qing
Zhang, Hua
Li, Hai
Lu, Gang
Yin, Zongyou
He, Qiyuan
Li, Hong
format Article
author Zhang, Qing
Zhang, Hua
Li, Hai
Lu, Gang
Yin, Zongyou
He, Qiyuan
Li, Hong
spellingShingle Zhang, Qing
Zhang, Hua
Li, Hai
Lu, Gang
Yin, Zongyou
He, Qiyuan
Li, Hong
Optical identification of single- and few-layer MoS2 sheets
author_sort Zhang, Qing
title Optical identification of single- and few-layer MoS2 sheets
title_short Optical identification of single- and few-layer MoS2 sheets
title_full Optical identification of single- and few-layer MoS2 sheets
title_fullStr Optical identification of single- and few-layer MoS2 sheets
title_full_unstemmed Optical identification of single- and few-layer MoS2 sheets
title_sort optical identification of single- and few-layer mos2 sheets
publishDate 2013
url https://hdl.handle.net/10356/96610
http://hdl.handle.net/10220/10358
_version_ 1681058786893103104