| Autor: |
Ames, Alessandra, Sousa, Frederico B., Souza, Gabriel A. D., de Oliveira, Raphaela, Silva, Igor R. F., Rodrigues, Gabriel L., Watanabe, Kenji, Taniguchi, Takashi, Marques, Gilmar E., Barcelos, Ingrid D., Cadore, Alisson R., López-Richard, Victor, Teodoro, Marcio D. |
| Rok vydání: |
2024 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
Two-dimensional heterostructures have been crucial in advancing optoelectronic devices utilizing van der Waals materials. Semiconducting transition metal dichalcogenide monolayers, known for their unique optical properties, offer extensive possibilities for light-emitting devices. Recently, a memory-driven optical device, termed a Mem-emitter, was proposed using these monolayers atop dielectric substrates. The successful realization of such devices heavily depends on selecting the optimal substrate. Here, we report a pronounced memory effect in a MoSe$_2$/clinochlore device, evidenced by electric hysteresis in the intensity and energy of MoSe$_2$ monolayer emissions. This demonstrates both population-driven and transition-rate-driven Mem-emitter abilities. Our theoretical approach correlates these memory effects with internal state variables of the substrate, emphasizing that clinochlore layered structure is crucial for a robust and rich memory response. This work introduces a novel two-dimensional device with promising applications in memory functionalities, highlighting the importance of alternative insulators in fabricating van der Waals heterostructures. |
| Databáze: |
arXiv |
| Externí odkaz: |
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