Cu-incorporation by melt-spinning in n-type Bi 2 Te 2.7 Se 0.3 alloys for low-temperature power generation

Minyoung Kim, Sang il Kim, Hyun joon Cho, Hyuna Mun, Hyun sik Kim, Jae Hong Lim, Sung Wng Kim, Kyu Hyoung Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Herein, we report the enhanced thermoelectric performance of Cu incorporated Bi 2 Te 2.7 Se 0.3 prepared by melt spinning. The electronic transport properties were significantly improved by Cu incorporation due to the synergetic effect of carrier tuning, band modification, and electron-phonon transport control. The steady dimensionless thermoelectric figure of merit higher than 0.90 was achieved in the wide range of temperature range of 350–450 K for Cu 0.008 Bi 2 Te 2.7 Se 0.3 , which is ~30% enhancement in comparison with pristine Bi 2 Te 2.7 Se 0.3 . This result can lead to high thermoelectric power generation efficiency 4.2% at ΔT = 180 K.

Original languageEnglish
Pages (from-to)120-125
Number of pages6
JournalScripta Materialia
Volume167
DOIs
Publication statusPublished - 2019 Jul 1

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thermoelectric power generation
melt spinning
Melt spinning
Thermoelectric power
figure of merit
Transport properties
Power generation
Tuning
transport properties
tuning
Electrons
augmentation
electronics
electrons
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

Cite this

Kim, Minyoung ; Kim, Sang il ; Cho, Hyun joon ; Mun, Hyuna ; Kim, Hyun sik ; Lim, Jae Hong ; Kim, Sung Wng ; Lee, Kyu Hyoung. / Cu-incorporation by melt-spinning in n-type Bi 2 Te 2.7 Se 0.3 alloys for low-temperature power generation In: Scripta Materialia. 2019 ; Vol. 167. pp. 120-125.
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abstract = "Herein, we report the enhanced thermoelectric performance of Cu incorporated Bi 2 Te 2.7 Se 0.3 prepared by melt spinning. The electronic transport properties were significantly improved by Cu incorporation due to the synergetic effect of carrier tuning, band modification, and electron-phonon transport control. The steady dimensionless thermoelectric figure of merit higher than 0.90 was achieved in the wide range of temperature range of 350–450 K for Cu 0.008 Bi 2 Te 2.7 Se 0.3 , which is ~30{\%} enhancement in comparison with pristine Bi 2 Te 2.7 Se 0.3 . This result can lead to high thermoelectric power generation efficiency 4.2{\%} at ΔT = 180 K.",
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Cu-incorporation by melt-spinning in n-type Bi 2 Te 2.7 Se 0.3 alloys for low-temperature power generation . / Kim, Minyoung; Kim, Sang il; Cho, Hyun joon; Mun, Hyuna; Kim, Hyun sik; Lim, Jae Hong; Kim, Sung Wng; Lee, Kyu Hyoung.

In: Scripta Materialia, Vol. 167, 01.07.2019, p. 120-125.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Cu-incorporation by melt-spinning in n-type Bi 2 Te 2.7 Se 0.3 alloys for low-temperature power generation

AU - Kim, Minyoung

AU - Kim, Sang il

AU - Cho, Hyun joon

AU - Mun, Hyuna

AU - Kim, Hyun sik

AU - Lim, Jae Hong

AU - Kim, Sung Wng

AU - Lee, Kyu Hyoung

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AB - Herein, we report the enhanced thermoelectric performance of Cu incorporated Bi 2 Te 2.7 Se 0.3 prepared by melt spinning. The electronic transport properties were significantly improved by Cu incorporation due to the synergetic effect of carrier tuning, band modification, and electron-phonon transport control. The steady dimensionless thermoelectric figure of merit higher than 0.90 was achieved in the wide range of temperature range of 350–450 K for Cu 0.008 Bi 2 Te 2.7 Se 0.3 , which is ~30% enhancement in comparison with pristine Bi 2 Te 2.7 Se 0.3 . This result can lead to high thermoelectric power generation efficiency 4.2% at ΔT = 180 K.

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