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Yuho Min, Jong Wook Roh, Heeseung Yang, Minwoo Park, Sang Il Kim, Sungwoo Hwang, Sang Mock Lee, Kyu Hyoung Lee and Unyong Jeong Surfactant-Free Scalable Synthesis of Bi2Te3 and Bi2Se3 Nanoflakes and Enhanced Thermoelectric Properties of Their Nanocomposites Advanced Materials 25

Version of Record online: 15 NOV 2012 | DOI: 10.1002/adma.201203764

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Surfactant-free nanoflakes of n-type Bi2Te3 and Bi2Se3 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% Bi2Se3 in the nanocomposites.

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