Optical Identification of Single‐ and Few‐Layer MoS<sub>2</sub> Sheets

Abstract

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.

Keywords

Materials scienceIdentification (biology)Layer (electronics)NanotechnologyOptoelectronics

Affiliated Institutions

Nanyang Technological University SG

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Publication Info

Year: 2012
Type: article
Volume: 8
Issue: 5
Pages: 682-686
Citations: 314
Access: Closed

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APA Style

                            
                                
                                    Hai Li, 
                                
                                    Gang Lü, 
                                
                                    Zongyou Yin
                                
                                et al.
                            
                            (2012). 
                            Optical Identification of Single‐ and Few‐Layer MoS<sub>2</sub> Sheets. 
                            Small
                            , 8
                            (5)
                            , 682-686.
                            https://doi.org/10.1002/smll.201101958
                        

Identifiers

DOI: 10.1002/smll.201101958