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Surfactant‐Directed Synthesis of Branched Bismuth Telluride/Sulfide Core/Shell Nanorods
Author(s) -
Purkayastha Arup,
Yan Qingyu,
Raghuveer Makala S.,
Gandhi Darshan D.,
Li Huafang,
Liu Zhong W.,
Ramanujan Raju V.,
BorcaTasciuc Theodorian,
Ramanath Ganapathiraman
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200702572
Subject(s) - materials science , bismuth telluride , nanorod , bismuth , nanocrystal , telluride , sulfide , nanotechnology , chemical engineering , orthorhombic crystal system , thermoelectric materials , crystallography , crystal structure , metallurgy , composite material , chemistry , thermal conductivity , engineering
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.