The project aims to investigate local thermal and thermoelectric properties of atomically-layered TMD based nanostructures with a few nanometres lateral resolution. The efficiency of the thermoelectric materials can be significantly increased by means of nanostructuration and dimensionality confinement. The latter, which is pronounced in atomic-thin TMD materials, modifies the transport properties of heat (mainly phonons) and charge carriers due to the enhanced phonon scattering and the shortening of the effective electron mean free path, respectively. Understanding and finally spatially controlling the transport of phonons and electrons in TMD based nanostructures will lead to multiple breakthroughs (e.g., high figure of merit, improved energy efficiency). Therefore, the aim of the project is two-fold:

- The main scientific objective is to evaluate the impact of electrical contacts, local defects and interfaces of TMD based nanostructures and devices on nanoscale thermal and thermoelectric transport, and understand the underlying mechanisms.
- The main technological objective consists in developing of high interface quality van der Waals (vdW) TMD heterostructures and lateral spatially-confined TMD-graphene heterojunctions for novel structures with improved heat dissipation and energy efficiency.

The project targets the investigation of specific TMDs with promising thermoelectric performance and anisotropic physical properties (PdSe2, MoSe2 and SnSe2) and sub-micrometre lateral graphene-TMD heterojunctions that possibly can be used as an important heat-transfer pathway in future TMD devices.