Thermoelectric transport properties of Cu nanoprecipitates embedded Bi2 Te 2.7 Se0.3

Eunsil Lee, Jin Il Kim, Soon Mok Choi, Young Soo Lim, Won Seon Seo, Jong Young Kim, Kyu Hyoung Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We suggest a simple and scalable synthesis to prepare Cu-Bi2 Te 2.7 Se0.3 (Cu-BTS) nanocomposites. By precipitating Cu nanoparticle (NP) in colloidal suspension of as-exfoliated BTS, homogeneous mixtures of Cu NP and BTS nanosheet were readily achieved, and then the sintered nanocomposites were fabricated by spark plasma sintering technique using the mixed powder as a raw material. The precipitated Cu NPs in the BTS matrix effectively generated nanograin (BTS) and heterointerface (Cu/BTS) structures. The maximum Z T of 0.90 at 400 K, which is 15% higher compared to that of pristine BTS, was obtained in 3 vol% Cu-BTS nanocomposite. The enhancement of Z T resulted from improved power factor by carrier filtering effect due to the Cu nanoprecipitates in the BTS matrix.

Original languageEnglish
Article number820893
JournalJournal of Nanomaterials
Volume2015
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

Transport properties
Nanocomposites
Nanoparticles
Spark plasma sintering
Nanosheets
Powders
Suspensions
Raw materials

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Lee, Eunsil ; Kim, Jin Il ; Choi, Soon Mok ; Lim, Young Soo ; Seo, Won Seon ; Kim, Jong Young ; Lee, Kyu Hyoung. / Thermoelectric transport properties of Cu nanoprecipitates embedded Bi2 Te 2.7 Se0.3 In: Journal of Nanomaterials. 2015 ; Vol. 2015.
@article{2ac81f0f4c804ca2abe680c132b3e46f,
title = "Thermoelectric transport properties of Cu nanoprecipitates embedded Bi2 Te 2.7 Se0.3",
abstract = "We suggest a simple and scalable synthesis to prepare Cu-Bi2 Te 2.7 Se0.3 (Cu-BTS) nanocomposites. By precipitating Cu nanoparticle (NP) in colloidal suspension of as-exfoliated BTS, homogeneous mixtures of Cu NP and BTS nanosheet were readily achieved, and then the sintered nanocomposites were fabricated by spark plasma sintering technique using the mixed powder as a raw material. The precipitated Cu NPs in the BTS matrix effectively generated nanograin (BTS) and heterointerface (Cu/BTS) structures. The maximum Z T of 0.90 at 400 K, which is 15{\%} higher compared to that of pristine BTS, was obtained in 3 vol{\%} Cu-BTS nanocomposite. The enhancement of Z T resulted from improved power factor by carrier filtering effect due to the Cu nanoprecipitates in the BTS matrix.",
author = "Eunsil Lee and Kim, {Jin Il} and Choi, {Soon Mok} and Lim, {Young Soo} and Seo, {Won Seon} and Kim, {Jong Young} and Lee, {Kyu Hyoung}",
year = "2015",
month = "1",
day = "1",
doi = "10.1155/2015/820893",
language = "English",
volume = "2015",
journal = "Journal of Nanomaterials",
issn = "1687-4110",
publisher = "Hindawi Publishing Corporation",

}

Thermoelectric transport properties of Cu nanoprecipitates embedded Bi2 Te 2.7 Se0.3 . / Lee, Eunsil; Kim, Jin Il; Choi, Soon Mok; Lim, Young Soo; Seo, Won Seon; Kim, Jong Young; Lee, Kyu Hyoung.

In: Journal of Nanomaterials, Vol. 2015, 820893, 01.01.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Thermoelectric transport properties of Cu nanoprecipitates embedded Bi2 Te 2.7 Se0.3

AU - Lee, Eunsil

AU - Kim, Jin Il

AU - Choi, Soon Mok

AU - Lim, Young Soo

AU - Seo, Won Seon

AU - Kim, Jong Young

AU - Lee, Kyu Hyoung

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We suggest a simple and scalable synthesis to prepare Cu-Bi2 Te 2.7 Se0.3 (Cu-BTS) nanocomposites. By precipitating Cu nanoparticle (NP) in colloidal suspension of as-exfoliated BTS, homogeneous mixtures of Cu NP and BTS nanosheet were readily achieved, and then the sintered nanocomposites were fabricated by spark plasma sintering technique using the mixed powder as a raw material. The precipitated Cu NPs in the BTS matrix effectively generated nanograin (BTS) and heterointerface (Cu/BTS) structures. The maximum Z T of 0.90 at 400 K, which is 15% higher compared to that of pristine BTS, was obtained in 3 vol% Cu-BTS nanocomposite. The enhancement of Z T resulted from improved power factor by carrier filtering effect due to the Cu nanoprecipitates in the BTS matrix.

AB - We suggest a simple and scalable synthesis to prepare Cu-Bi2 Te 2.7 Se0.3 (Cu-BTS) nanocomposites. By precipitating Cu nanoparticle (NP) in colloidal suspension of as-exfoliated BTS, homogeneous mixtures of Cu NP and BTS nanosheet were readily achieved, and then the sintered nanocomposites were fabricated by spark plasma sintering technique using the mixed powder as a raw material. The precipitated Cu NPs in the BTS matrix effectively generated nanograin (BTS) and heterointerface (Cu/BTS) structures. The maximum Z T of 0.90 at 400 K, which is 15% higher compared to that of pristine BTS, was obtained in 3 vol% Cu-BTS nanocomposite. The enhancement of Z T resulted from improved power factor by carrier filtering effect due to the Cu nanoprecipitates in the BTS matrix.

UR - http://www.scopus.com/inward/record.url?scp=84926626721&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84926626721&partnerID=8YFLogxK

U2 - 10.1155/2015/820893

DO - 10.1155/2015/820893

M3 - Article

AN - SCOPUS:84926626721

VL - 2015

JO - Journal of Nanomaterials

JF - Journal of Nanomaterials

SN - 1687-4110

M1 - 820893

ER -