Surfactant-free scalable synthesis of Bi2Te3 and Bi2Se3 nanoflakes and enhanced thermoelectric properties of Their Nanocomposites

Yuho Min, Jong Wook Roh, Heeseung Yang, Minwoo Park, Sang Il Kim, Sungwoo Hwang, Sang Mock Lee, Kyu Hyoung Lee, Unyong Jeong

Research output: Contribution to journalArticle

138 Citations (Scopus)

Abstract

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% Bi 2Se3 in the nanocomposites.

Original languageEnglish
Pages (from-to)1425-1429
Number of pages5
JournalAdvanced Materials
Volume25
Issue number10
DOIs
Publication statusPublished - 2013 Mar 13

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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