Editorial: Focus on waste-heat harvesting via thermoelectric conversion: Materials, devices and systems for sustainable energy technologies.

The Focus collection on Waste-Heat Harvesting via Thermoelectric Conversion: Materials, Devices and Systems for Sustainable Energy Technologies collates several research articles and a Roadmap highlighting the most recent advances in the field of thermoelectricity from the viewpoint of both basic and applied research, with a special eye on the work of the Italian community.