Optical Memory in a MoSe<sub>2</sub>/Clinochlore Device
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 MoSe<sub>2</sub>/clinochlore device, evidenced by an electric hysteresis in the intensity and energy of MoSe<sub>2</sub> 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.
Authors
- Ingrid D. Barcelos (ORCID: https://orcid.org/0000-0002-5778-7161)
- Victor Lopez‐Richard (ORCID: https://orcid.org/0000-0002-7897-3860)
- Gabriel Rodrigues (ORCID: https://orcid.org/0000-0002-0488-5040)
- Frederico B. Sousa (ORCID: https://orcid.org/0000-0001-7974-9548)
- Takashi Taniguchi (ORCID: https://orcid.org/0000-0002-1467-3105)
- Kenji Watanabe (ORCID: https://orcid.org/0000-0003-3701-8119)
- Alessandra Ames (ORCID: https://orcid.org/0000-0002-7996-8836)
- Alisson R. Cadore (ORCID: https://orcid.org/0000-0003-1081-0915)
- Marcio Daldin Teodoro (ORCID: https://orcid.org/0000-0002-3557-5555)
- Raphaela de Oliveira (ORCID: https://orcid.org/0000-0003-1391-6694)
- Gilmar Eugenio Marques
- Gabriel A. D. Souza
- Igor Ricardo Filgueira e Silva (ORCID: https://orcid.org/0009-0008-0581-822X)
Institutions
- Universidade Federal de São Carlos (BR)
- Universidade Estadual de Campinas (UNICAMP) (BR)
- National Institute for Materials Science (JP)
- Universidade Federal de Mato Grosso (BR)
- Brazilian Synchrotron Light Laboratory (BR)
- Instituto de Física La Plata (AR)
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ)
- Brazilian Center for Research in Energy and Materials (BR)
- Laboratório Nacional de Nanotecnologia
Publication Details
- Journal
- ACS Applied Materials & Interfaces
- Published
- 2025-02-13
- DOI
- https://doi.org/10.1021/acsami.4c19337
- Citations
- 7
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 3.62
Funders
- Ministry of Education, Culture, Sports, Science and Technology
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Centro Nacional de Pesquisa em Energia e Materiais
- Japan Society for the Promotion of Science
- Laboratório Nacional de Luz Síncrotron
- Laboratório Nacional de Nanotecnologia