title: Surfactant-directed synthesis of branched bismuth telluride/sulfide core/shell nanorods.
abstract: Branched core/shell bismuth telluride/bismuth sulfide nanorod heterostructures are prepared by using a biomimetic surfactant, L-glutathionic acid. Trigonal nanocrystals of bismuth telluride are encapsulated by nanoscopic shells of orthorhombic bismuth sulfide. Crystallographic twinning causes shell branching. Such heteronanostructures are attractive for thermoelectric power generation and cooling applications.
authors.affiliation: Department of Materials Science and Engineering Rensselaer Polytechnic Institute Troy, NY 12180 (USA).
authors.forename: Arup
authors.initials: A
authors.lastname: Purkayastha
authors.forename: Qingyu
authors.initials: Q
authors.lastname: Yan
authors.forename: Makala S
authors.initials: MS
authors.lastname: Raghuveer
authors.forename: Darshan D
authors.initials: DD
authors.lastname: Gandhi
authors.forename: Huafang
authors.initials: H
authors.lastname: Li
authors.forename: Zhong W
authors.initials: ZW
authors.lastname: Liu
authors.forename: Raju V
authors.initials: RV
authors.lastname: Ramanujan
authors.forename: Theodorian
authors.initials: T
authors.lastname: Borca-Tasciuc
authors.forename: Ganapathiraman
authors.initials: G
authors.lastname: Ramanath
keywords: core/shell materials; inorganic nanostructures; surfactants; tellurides