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Surfactant‐Free Scalable Synthesis of Bi 2 Te 3 and Bi 2 Se 3 Nanoflakes and Enhanced Thermoelectric Properties of Their Nanocomposites (Adv. Mater. 10/2013)
Author(s) -
Min Yuho,
Roh Jong Wook,
Yang Heeseung,
Park Minwoo,
Kim Sang Il,
Hwang Sungwoo,
Lee Sang Mock,
Lee Kyu Hyoung,
Jeong Unyong
Publication year - 2013
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.201370066
Subject(s) - materials science , nanocomposite , thermoelectric effect , pulmonary surfactant , nanomaterials , chemical engineering , nanotechnology , thermoelectric materials , scalability , optoelectronics , composite material , thermal conductivity , physics , engineering , thermodynamics , database , computer science
Nanomaterial‐based thermoelectric devices request scalable production and compositional tolerance for reliable device performance. On page 1425 Unyong Jeong and co‐workers suggest a large‐quantity synthesis of surfactant‐free nanoflakes of Bi 2 Te 3 and Bi 2 Se 3 . The chemical composition of the heterostructured nanocomposites is precisely controlled by mixing the nanoflake suspensions. A maximum ZT (0.7 at 400 K) is achieved with a broad content of 10–15% Bi 2 Se 3 in the nanocomposites.