Enhanced Visibility of MoS2, MoSe2, WSe2 and Black Phosphorus: Making Optical Identification of 2D Semiconductors Easier
We explore the use of Si3N4/Si substrates as a substitute of the standard SiO2/Si substrates employed nowadays to fabricate nanodevices based on 2D materials. We systematically study the visibility of several 2D semiconducting materials that are attracting a great deal of interest in nanoelectronics...
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| Veröffentlicht in: | arXiv.org 2015-11 |
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| creator | Rubio-Bollinger, Gabino Guerrero, Ruben Perez de Lara, David Quereda, Jorge Vaquero-Garzon, Luis Agraït, Nicolas Bratschitsch, Rudolf Castellanos-Gomez, Andres |
| description | We explore the use of Si3N4/Si substrates as a substitute of the standard SiO2/Si substrates employed nowadays to fabricate nanodevices based on 2D materials. We systematically study the visibility of several 2D semiconducting materials that are attracting a great deal of interest in nanoelectronics and optoelectronics: MoS2, MoSe2, WSe2 and black phosphorus. We find that the use of Si3N4/Si substrates provides an increase of the optical contrast up to a 50%-100% and also the maximum contrast shifts towards wavelength values optimal for human eye detection, making optical identification of 2D semiconductors easier. |
| doi_str_mv | 10.48550/arxiv.1511.05474 |
| format | Article |
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| subjects | Molybdenum compounds Molybdenum disulfide Nanoelectronics Nanotechnology devices Optoelectronics Phosphorus Physics - Materials Science Physics - Mesoscale and Nanoscale Physics Semiconductors Silicon dioxide Silicon nitride Silicon substrates Two dimensional materials Visibility |
| title | Enhanced Visibility of MoS2, MoSe2, WSe2 and Black Phosphorus: Making Optical Identification of 2D Semiconductors Easier |
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