Indexed by:Journal paper First Author:Seung Hee Jeong Correspondence Author:Seung Hee Jeong Co-author:Seung Hee Jeong*, Francisco Javier Cruz, Si Chen, Laurent Gravier, Johan Liu, Zhigang Wu, Klas Hjort, Shi-Li Zhang,Zhi-Bin Zhang Journal:ACS Appl. Mater. Interfaces Included Journals:SCI Discipline:Engineering First-Level Discipline:Mechanical Engineering Document Type:J Volume:2017 Issue:9 Page Number:15791−15797 ISSN No.:1944-8244 Key Words:stretchability, flexibility, thermoelectric generator, liquid alloy, interconnect, contact resistanc Date of Publication:2017-04-13 Abstract:Conventional thermoelectric generators (TEGs) are normally hard, rigid, and flat. However, most objects havecurvy surfaces, which require soft and even stretchable TEGs for maximizing efficiency of thermal energy harvesting. Here, soft and stretchable TEGs using conventional rigid Bi2Te3 pellets metallized with a liquid alloy is reported. The fabrication is implemented by means of a tailored layer-by-layer fabrication process. The STEGs exhibit an output power density of 40.6 μW/ cm2 at room temperature. The STEGs are operational after being mechanically stretched-and-released more than 1000 Links to published journals:https://pubs.acs.org/doi/abs/10.1021/acsami.7b04752