Surfactant-Free Scalable Synthesis of Bi sub(2)Te sub(3) and Bi sub(2)Se sub(3) Nanoflakes and Enhanced Thermoelectric Properties of Their Nanocomposites

Surfactant-Free Scalable Synthesis of Bi sub(2)Te sub(3) and Bi sub(2)Se sub(3) Nanoflakes and Enhanced Thermoelectric Properties of Their Nanocomposites

Surfactant-free nanoflakes of n-type Bi sub(2)Te sub(3) and Bi sub(2)Se sub(3) are synthesized in high yields. Their suspensions are mixed to create nanocomposites with heterostructured nanograins. A maximum ZT (0.7 at 400 K) is achieved with a broad content of 10-15% Bi sub(2)Se sub(3) in the nanoc...

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Veröffentlicht in:Advanced materials (Weinheim) 2013-03, Vol.25 (10), p.1425-1429
Hauptverfasser: Min, Yuho, Roh, Jong Wook, Yang, Heeseung, Park, Minwoo, Kim, Sang Il, Hwang, Sungwoo, Lee, Sang Mock, Lee, Kyu Hyoung, Jeong, Unyong
Format: Artikel
Sprache:eng
Schlagworte:
Nanocomposites
Nanomaterials
Nanostructure
Synthesis
Thermoelectricity
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Zusammenfassung:Surfactant-free nanoflakes of n-type Bi sub(2)Te sub(3) and Bi sub(2)Se sub(3) are synthesized in high yields. Their suspensions are mixed to create nanocomposites with heterostructured nanograins. A maximum ZT (0.7 at 400 K) is achieved with a broad content of 10-15% Bi sub(2)Se sub(3) in the nanocomposites.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201203764