| Full text | |
| Author(s): Show less - |
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.
;
Lopez-Richard, Victor
;
Teodoro, Marcio D.
Total Authors: 13
|
| Document type: | Journal article |
| Source: | ACS APPLIED MATERIALS & INTERFACES; v. N/A, p. 9-pg., 2025-02-13. |
| Abstract | |
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 by using these monolayers atop dielectric substrates. The successful realization of such devices heavily depends on the selection of the optimal substrate. Here, we report a pronounced memory effect in a MoSe2/clinochlore device, evidenced by an electric hysteresis in the intensity and energy of MoSe2 monolayer emissions. This demonstrates both population- and transition-rate-driven Mem-emitter abilities. Our theoretical approach correlates these memory effects with internal state variables of the substrate, emphasizing that a 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 alternate insulators in the fabrication of van der Waals heterostructures. (AU) | |
| FAPESP's process: | 23/10905-2 - Magneto-polaron and non-linear Zeeman effect in 2D semiconductors |
| Grantee: | Gilmar Eugenio Marques |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 22/10340-2 - Scientific MUE: acquisition of a high temporal, spatial and spectral resolution fluorescence system operating over a wide temperature range |
| Grantee: | Gilmar Eugenio Marques |
| Support Opportunities: | Research Infrastructure Program - Scientific |