Strain-Enhanced Large-Area Monolayer MoS2 Photodetectors
In this study, we show a direct correlation between the applied mechanical strain and an increase in monolayer MoS2 photoresponsivity. This shows that tensile strain can improve the efficiency of monolayer MoS2 photodetectors. The observed high photocurrent and extended response time in our devices...
| Autores: | , , , , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/383726 |
| Acesso em linha: | http://hdl.handle.net/10261/383726 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85188099402&doi=10.1021%2facsami.4c00458&partnerID=40&md5=586d32311d0014892c4efd0fe273dc0a |
| Access Level: | acceso abierto |
| Palavra-chave: | atomic force microscopy MoS2 photocurrent spectroscopy photodetector PL spectroscopy strain strain sensor |
| Resumo: | In this study, we show a direct correlation between the applied mechanical strain and an increase in monolayer MoS2 photoresponsivity. This shows that tensile strain can improve the efficiency of monolayer MoS2 photodetectors. The observed high photocurrent and extended response time in our devices are indicative that devices are predominantly governed by photogating mechanisms, which become more prominent with applied tensile strain. Furthermore, we have demonstrated that a nonencapsulated MoS2 monolayer can be used in strain-based devices for many cycles and extensive periods of time, showing endurance under ambient conditions without loss of functionality. Such robustness emphasizes the potential of MoS2 for further functionalization and utilization of different flexible sensors. © 2024 The Authors. |
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