Effect of Single Crystallization on Thermoelectric Performance Improvement of Ba8CuxSi46−x Clathrate

Zilong Zhang; Chiho Inoue; Masahide Yasuda; Yuichiro Magami; Makoto Arita; Shinji Munetoh

doi:10.1007/s11664-020-08649-y

Effect of Single Crystallization on Thermoelectric Performance Improvement of Ba₈Cu_xSi_46−x Clathrate

Zilong Zhang, Chiho Inoue, Masahide Yasuda, Yuichiro Magami, Makoto Arita, Shinji Munetoh

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

抄録

The thermoelectric properties of single-crystalline and polycrystalline n-type Ba₈Cu_xSi_46−x type I clathrate were investigated and compared. Single-crystalline Ba₈Cu_xSi_46−x clathrate was synthesized by the Czochralski (CZ) method with a Cu content gradient, while spark plasma sintering (SPS) was used for the reorganization of polycrystalline materials. The same Cu content resulted in almost the same Seebeck coefficient in both single-crystalline and polycrystalline crystals, while the power factor (PF = S²/ ρ) of single-crystalline clathrate is twice that of polycrystalline clathrate. Thus, single crystallization is effective for the synthesis of high-efficiency thermoelectric materials in a type I Ba₈Cu_xSi_46−x clathrate ternary system.

本文言語	英語
ページ（範囲）	1146-1152
ページ数	7
ジャーナル	Journal of Electronic Materials
巻	50
号	3
DOI	https://doi.org/10.1007/s11664-020-08649-y
出版ステータス	出版済み - 3月 2021

!!!All Science Journal Classification (ASJC) codes

電子材料、光学材料、および磁性材料
凝縮系物理学
電子工学および電気工学
材料化学

文献へのアクセス

10.1007/s11664-020-08649-y

他のファイルとリンク

引用スタイル

@article{1bdf1c58c46e44e697dc50a22c7b5947,

title = "Effect of Single Crystallization on Thermoelectric Performance Improvement of Ba8CuxSi46−x Clathrate",

abstract = "The thermoelectric properties of single-crystalline and polycrystalline n-type Ba8CuxSi46−x type I clathrate were investigated and compared. Single-crystalline Ba8CuxSi46−x clathrate was synthesized by the Czochralski (CZ) method with a Cu content gradient, while spark plasma sintering (SPS) was used for the reorganization of polycrystalline materials. The same Cu content resulted in almost the same Seebeck coefficient in both single-crystalline and polycrystalline crystals, while the power factor (PF = S2/ ρ) of single-crystalline clathrate is twice that of polycrystalline clathrate. Thus, single crystallization is effective for the synthesis of high-efficiency thermoelectric materials in a type I Ba8CuxSi46−x clathrate ternary system.",

author = "Zilong Zhang and Chiho Inoue and Masahide Yasuda and Yuichiro Magami and Makoto Arita and Shinji Munetoh",

note = "Publisher Copyright: {\textcopyright} 2021, The Minerals, Metals & Materials Society.",

year = "2021",

month = mar,

doi = "10.1007/s11664-020-08649-y",

language = "English",

volume = "50",

pages = "1146--1152",

journal = "Journal of Electronic Materials",

issn = "0361-5235",

publisher = "Springer New York",

number = "3",

}

TY - JOUR

T1 - Effect of Single Crystallization on Thermoelectric Performance Improvement of Ba8CuxSi46−x Clathrate

AU - Zhang, Zilong

AU - Inoue, Chiho

AU - Yasuda, Masahide

AU - Magami, Yuichiro

AU - Arita, Makoto

AU - Munetoh, Shinji

PY - 2021/3

Y1 - 2021/3

N2 - The thermoelectric properties of single-crystalline and polycrystalline n-type Ba8CuxSi46−x type I clathrate were investigated and compared. Single-crystalline Ba8CuxSi46−x clathrate was synthesized by the Czochralski (CZ) method with a Cu content gradient, while spark plasma sintering (SPS) was used for the reorganization of polycrystalline materials. The same Cu content resulted in almost the same Seebeck coefficient in both single-crystalline and polycrystalline crystals, while the power factor (PF = S2/ ρ) of single-crystalline clathrate is twice that of polycrystalline clathrate. Thus, single crystallization is effective for the synthesis of high-efficiency thermoelectric materials in a type I Ba8CuxSi46−x clathrate ternary system.

AB - The thermoelectric properties of single-crystalline and polycrystalline n-type Ba8CuxSi46−x type I clathrate were investigated and compared. Single-crystalline Ba8CuxSi46−x clathrate was synthesized by the Czochralski (CZ) method with a Cu content gradient, while spark plasma sintering (SPS) was used for the reorganization of polycrystalline materials. The same Cu content resulted in almost the same Seebeck coefficient in both single-crystalline and polycrystalline crystals, while the power factor (PF = S2/ ρ) of single-crystalline clathrate is twice that of polycrystalline clathrate. Thus, single crystallization is effective for the synthesis of high-efficiency thermoelectric materials in a type I Ba8CuxSi46−x clathrate ternary system.

UR - http://www.scopus.com/inward/record.url?scp=85098594895&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85098594895&partnerID=8YFLogxK

U2 - 10.1007/s11664-020-08649-y

DO - 10.1007/s11664-020-08649-y

M3 - Article

AN - SCOPUS:85098594895

SN - 0361-5235

VL - 50

SP - 1146

EP - 1152

JO - Journal of Electronic Materials

JF - Journal of Electronic Materials

IS - 3

ER -