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Thermoelectrics: Tuning Electrical and Thermal Transport in AlGaN/GaN Heterostructures via Buffer Layer Engineering (Adv. Funct. Mater. 22/2018)

Eric Pop, and co-workers describe the ability to manipulate electrical transport separately from thermal transport by leveraging the 2-dimensional electron gas in AlGaN/GaN heterostructures. The image shows the transport of electrons and phonons in the heterostructure, which, under a thermal gradient, can be used for on-chip thermal sensing and energy harvesting within power electronics modules. THERMOELECTRICS