title: Silver-based intermetallic heterostructures in Sb2Te3 thick films with enhanced thermoelectric power factors.
abstract: In this work, Ag(x)Te(y)-Sb(2)Te(3) heterostructured films are prepared by ligand exchange using hydrazine soluble metal chalcogenide. Because of the created interfacial barrier, cold carriers are more strongly scattered than hot ones and thereby an over 50% enhanced thermoelectric power factor (~2 μW/(cm·K(2))) is obtained at 150 °C. This shows the possibility of engineering multiphases to further improve thermoelectric performance beyond phonon scattering through a low-temperature solution processed route.
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, USA.
authors.forename: Yichi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Matthew L
authors.initials: ML
authors.lastname: Snedaker
authors.forename: Christina S
authors.initials: CS
authors.lastname: Birkel
authors.forename: Syed
authors.initials: S
authors.lastname: Mubeen
authors.forename: Xiulei
authors.initials: X
authors.lastname: Ji
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Shi
authors.forename: Deyu
authors.initials: D
authors.lastname: Liu
authors.forename: Xiaonao
authors.initials: X
authors.lastname: Liu
authors.forename: Martin
authors.initials: M
authors.lastname: Moskovits
authors.forename: Galen D
authors.initials: GD
authors.lastname: Stucky
mesh_terms: D000965:Antimony / Q000737:chemistry*; D004560:Electricity; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties; D013691:Tellurium / Q000737:chemistry*; D013696:Temperature
chemical_list: D008567:Membranes, Artificial; D012834:Silver; D000965:Antimony; D013691:Tellurium