Effect of the annealing treatment on structural and transport properties of thermoelectric Smy (Fex Ni1−x )4Sb12 thin films

Giovanna Latronico; Paolo Mele; Chihiro Sekine; Pan Sian Wei; Saurabh Singh; Tsunehiro Takeuchi; Cédric Bourgès; Takahiro Baba; Takao Mori; Pietro Manfrinetti; Cristina Artini

doi:10.1088/1361-6528/aca980

Effect of the annealing treatment on structural and transport properties of thermoelectric Sm_y (Fe_x Ni_1−x)4Sb₁₂ thin films

Giovanna Latronico, Paolo Mele, Chihiro Sekine, Pan Sian Wei, Saurabh Singh, Tsunehiro Takeuchi, Cédric Bourgès, Takahiro Baba, Takao Mori, Pietro Manfrinetti, Cristina Artini

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

1 Citation (Scopus)

Abstract

The crystallographic and transport properties of thin films fabricated by pulsed laser deposition and belonging to the Sm_y(Fe_xNi_1-x)₄Sb₁₂ filled skutterudite system were studied with the aim to unveil the effect exerted by temperature and duration of thermal treatments on structural and thermoelectric features. The importance of annealing treatments in Ar atmosphere up to 523 K was recognized, and the thermal treatment performed at 473 K for 3 h was selected as the most effective in improving the material properties. With respect to the corresponding bulk compositions, a significant enhancement in phase purity, as well as an increase in electrical conductivity and a drop in room temperature thermal conductivity, were observed in annealed films. The low thermal conductivity, in particular, can be deemed as deriving from the reduced dimensionality and the consequent substrate/film interfacial stress, coupled with the nanometric grain size.

Original language	English
Article number	115705
Journal	Nanotechnology
Volume	34
Issue number	11
DOIs	https://doi.org/10.1088/1361-6528/aca980
Publication status	Published - 2023 Mar 12

Keywords

skutterudites
thermoelectric materials
thin films

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

Access to Document

10.1088/1361-6528/aca980

Cite this

@article{67974e892b124eb89e3f2c9a5236e1d0,

title = "Effect of the annealing treatment on structural and transport properties of thermoelectric Smy (Fex Ni1−x )4Sb12 thin films",

abstract = "The crystallographic and transport properties of thin films fabricated by pulsed laser deposition and belonging to the Smy(FexNi1-x )4Sb12 filled skutterudite system were studied with the aim to unveil the effect exerted by temperature and duration of thermal treatments on structural and thermoelectric features. The importance of annealing treatments in Ar atmosphere up to 523 K was recognized, and the thermal treatment performed at 473 K for 3 h was selected as the most effective in improving the material properties. With respect to the corresponding bulk compositions, a significant enhancement in phase purity, as well as an increase in electrical conductivity and a drop in room temperature thermal conductivity, were observed in annealed films. The low thermal conductivity, in particular, can be deemed as deriving from the reduced dimensionality and the consequent substrate/film interfacial stress, coupled with the nanometric grain size.",

keywords = "skutterudites, thermoelectric materials, thin films",

author = "Giovanna Latronico and Paolo Mele and Chihiro Sekine and Wei, {Pan Sian} and Saurabh Singh and Tsunehiro Takeuchi and C{\'e}dric Bourg{\`e}s and Takahiro Baba and Takao Mori and Pietro Manfrinetti and Cristina Artini",

note = "Funding Information: GL and PM acknowledge the partial financial support of the International Research Center for Green Electronics (IRCGE), Shibaura Institute of Technology. TM, CB, and TB acknowledge support from JST Mirai Program Grant Number JPMJMI19A1. Publisher Copyright: {\textcopyright} 2023 IOP Publishing Ltd.",

year = "2023",

month = mar,

day = "12",

doi = "10.1088/1361-6528/aca980",

language = "English",

volume = "34",

journal = "Nanotechnology",

issn = "0957-4484",

publisher = "IOP Publishing Ltd.",

number = "11",

}

TY - JOUR

T1 - Effect of the annealing treatment on structural and transport properties of thermoelectric Smy (Fex Ni1−x )4Sb12 thin films

AU - Latronico, Giovanna

AU - Mele, Paolo

AU - Sekine, Chihiro

AU - Wei, Pan Sian

AU - Singh, Saurabh

AU - Takeuchi, Tsunehiro

AU - Bourgès, Cédric

AU - Baba, Takahiro

AU - Mori, Takao

AU - Manfrinetti, Pietro

AU - Artini, Cristina

N1 - Funding Information: GL and PM acknowledge the partial financial support of the International Research Center for Green Electronics (IRCGE), Shibaura Institute of Technology. TM, CB, and TB acknowledge support from JST Mirai Program Grant Number JPMJMI19A1. Publisher Copyright: © 2023 IOP Publishing Ltd.

PY - 2023/3/12

Y1 - 2023/3/12

N2 - The crystallographic and transport properties of thin films fabricated by pulsed laser deposition and belonging to the Smy(FexNi1-x )4Sb12 filled skutterudite system were studied with the aim to unveil the effect exerted by temperature and duration of thermal treatments on structural and thermoelectric features. The importance of annealing treatments in Ar atmosphere up to 523 K was recognized, and the thermal treatment performed at 473 K for 3 h was selected as the most effective in improving the material properties. With respect to the corresponding bulk compositions, a significant enhancement in phase purity, as well as an increase in electrical conductivity and a drop in room temperature thermal conductivity, were observed in annealed films. The low thermal conductivity, in particular, can be deemed as deriving from the reduced dimensionality and the consequent substrate/film interfacial stress, coupled with the nanometric grain size.

AB - The crystallographic and transport properties of thin films fabricated by pulsed laser deposition and belonging to the Smy(FexNi1-x )4Sb12 filled skutterudite system were studied with the aim to unveil the effect exerted by temperature and duration of thermal treatments on structural and thermoelectric features. The importance of annealing treatments in Ar atmosphere up to 523 K was recognized, and the thermal treatment performed at 473 K for 3 h was selected as the most effective in improving the material properties. With respect to the corresponding bulk compositions, a significant enhancement in phase purity, as well as an increase in electrical conductivity and a drop in room temperature thermal conductivity, were observed in annealed films. The low thermal conductivity, in particular, can be deemed as deriving from the reduced dimensionality and the consequent substrate/film interfacial stress, coupled with the nanometric grain size.

KW - skutterudites

KW - thermoelectric materials

KW - thin films

UR - http://www.scopus.com/inward/record.url?scp=85145641669&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85145641669&partnerID=8YFLogxK

U2 - 10.1088/1361-6528/aca980

DO - 10.1088/1361-6528/aca980

M3 - Article

C2 - 36595242

AN - SCOPUS:85145641669

SN - 0957-4484

VL - 34

JO - Nanotechnology

JF - Nanotechnology

IS - 11

M1 - 115705

ER -