Artículo
Improved strain engineering of 2D materials by adamantane plasma polymer encapsulation
Autor/es | Carrascoso Plana, Félix
Li, Hao Obrero Pérez, José M. Aparicio Rebollo, Francisco Javier Borrás Martos, Ana Isabel Island, Joshua O. Barranco Quero, Ángel Castellanos-Gómez, Andrés |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2023-03 |
Fecha de depósito | 2023-05-02 |
Publicado en |
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Premios | Premio Mensual Publicación Científica Destacada de la US. Escuela Politécnica Superior |
Resumen | Two-dimensional materials present exceptional crystal elasticity and provide an ideal platform to tune electrical and optical properties through the application of strain. Here we extend recent research on strain engineering ... Two-dimensional materials present exceptional crystal elasticity and provide an ideal platform to tune electrical and optical properties through the application of strain. Here we extend recent research on strain engineering in monolayer molybdenum disulfide using an adamantane plasma polymer pinning layer to achieve unprecedented crystal strains of 2.8%. Using micro-reflectance spectroscopy, we report maximum strain gauge factors of −99.5 meV/% and −63.5 meV/% for the A and B exciton of monolayer MoS2, respectively, with a 50 nm adamantane capping layer. These results are corroborated with photoluminescence and Raman measurements on the same samples. Taken together, our results indicate that adamantane polymer is an exceptional capping layer to transfer substrate-induced strain to a 2D layer and achieve higher levels of crystal strain. |
Agencias financiadoras | Spanish Ministry of Science and Innovation AEI/10.13039/501100011033 grant PID2020-115566RB-I00 Spanish Ministry of Science and Innovation AEI/10.13039/501100011033 grant TED2021-132267B-I00 Spanish Ministry of Science and Innovation AEI/10.13039/501100011033 grant PID2019-110430GB-C21 EU ERDF (FEDER Operational Program (2014-2020) and the Consejería de Economía, Conocimiento, Empresas y Universidad de la Junta de Andalucía grant P18-RT-3480 EU ERDF (FEDER Operational Program (2014-2020) and the Consejería de Economía, Conocimiento, Empresas y Universidad de la Junta de Andalucía grant EMERGIA EU ERDF (FEDER Operational Program (2014-2020) and the Consejería de Economía, Conocimiento, Empresas y Universidad de la Junta de Andalucía grant US-1381057 |
Identificador del proyecto | PID2020-115566RB-I00
TED2021-132267B-I00 PID2019-110430GB-C21 P18-RT-3480 EMERGIA US-1381057 |
Cita | Carrascoso Plana, ., Li, H., Obrero Pérez, J.M., Aparicio Rebollo, F.J., Borrás Martos, A.I., Island, J.O.,...,Castellanos-Gómez, A. (2023). Improved strain engineering of 2D materials by adamantane plasma polymer encapsulation. npj 2D Materials and Applications, 7 (24). https://doi.org/10.1038/s41699-023-00393-1. |
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