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

doi:10.1002/adma.201203764

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

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

215 Scopus citations

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 language	English
Pages (from-to)	1425-1429
Number of pages	5
Journal	Advanced Materials
Volume	25
Issue number	10
DOIs	https://doi.org/10.1002/adma.201203764
State	Published - 13 Mar 2013

Keywords

Bi Te
heterostructures
nanocomposites
nanograins
surfactant-free nanomaterials
thermoelectric materials

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10.1002/adma.201203764

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title = "Surfactant-free scalable synthesis of Bi2Te3 and Bi2Se3 nanoflakes and enhanced thermoelectric properties of Their Nanocomposites",

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.",

keywords = "Bi Te, heterostructures, nanocomposites, nanograins, surfactant-free nanomaterials, thermoelectric materials",

author = "Yuho Min and Roh, {Jong Wook} and Heeseung Yang and Minwoo Park and Kim, {Sang Il} and Sungwoo Hwang and Lee, {Sang Mock} and Lee, {Kyu Hyoung} and Unyong Jeong",

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T1 - Surfactant-free scalable synthesis of Bi2Te3 and Bi2Se3 nanoflakes and enhanced thermoelectric properties of Their Nanocomposites

AU - Min, Yuho

AU - Roh, Jong Wook

AU - Yang, Heeseung

AU - Park, Minwoo

AU - Kim, Sang Il

AU - Hwang, Sungwoo

AU - Lee, Sang Mock

AU - Lee, Kyu Hyoung

AU - Jeong, Unyong

PY - 2013/3/13

Y1 - 2013/3/13

N2 - 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.

AB - 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.

KW - Bi Te

KW - heterostructures

KW - nanocomposites

KW - nanograins

KW - surfactant-free nanomaterials

KW - thermoelectric materials

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JO - Advanced Materials

JF - Advanced Materials

IS - 10

ER -

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

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Keywords

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