AUTHOR=Toprak Muhammet S. , Ballikaya Sedat , Celik Emrah TITLE=Editorial: Recent Advances in Waste-Heat Harvesting via Thermoelectrics: From Theory to Materials and Devices JOURNAL=Frontiers in Materials VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2021.685204 DOI=10.3389/fmats.2021.685204 ISSN=2296-8016