2D Materials: A Tunable Materials Platform for Electronics and Optoelectronics

CFM Seminars

Speaker

M. Reyes Calvo
BCMaterials, Basque Center for Materials, Applications and Nanostructures; IKERBASQUE, Basque Foundation for Science

When

2024/11/15
12:00

Place

CFM Auditorium

Host

Daniel Hernangomez, Julen Ibanez

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2D materials exhibit unique electronic and optical properties, and with cost-effective preparation methods and remarkable mechanical flexibility, they are promising candidates for next-generation optical, electronic, and optoelectronic devices. Furthermore, 2D materials are highly tunable systems, creating exciting opportunities to engineer their properties. In this talk, I will introduce various methods for fine-tuning the properties of 2D materials. I will then present two examples of strategies for tailoring these properties: (i) integrating single-layer semiconductors in hybrid structures with polymers and active molecular materials to enhance their optical performance [1], and (ii) modulating the quantum properties of 2D materials at low temperatures through strain engineering [2,3]. The first approach holds significant promise for developing flexible optoelectronic devices that incorporate active 2D materials, while the second provides a cost-effective means of adjusting phase transitions and quantum properties in 2D materials.

[1] M. Gadea et al. Enhancing Single-Layer WSe2 Light Emission in Perylene-Doped Polymer Films through Efficient Energy Transfer. Advanced Functional Materials 2024, 34 (36), 2401896.
[2] E. Henríquez-Guerra et al., Large Biaxial Compressive Strain Tuning of Neutral and Charged Excitons in Single-Layer Transition Metal Dichalcogenides. ACS Applied Materials & Interfaces 2023 15 (49), 57369-57378.
[3] E. Henríquez-Guerra et al. Modulation of the Superconducting Phase Transition in Multilayer 2H-NbSe2 Induced by Uniform Biaxial Compressive Strain. Nano Letters 2024 24 (34), 10504-10509