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...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/676444 |
| Acceso en línea: | http://hdl.handle.net/10486/676444 https://dx.doi.org/10.3390/electronics4040847 |
| Access Level: | acceso abierto |
| Palabra clave: | Black phosphorus Molybdenum diselenide (MoSe2) Molybdenum disulfide (MoS2) Optical identification Silicon nitride substrate Tungsten diselenide (WSe2) Two-dimensional semiconductors Física |
| Sumario: | 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 |
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