Thermoelectric characteristics of γ-Ag2Te nanoparticle thin films on flexible substrates

Seunggen Yang; Kyoungah Cho; Junggwon Yun; Jinyong Choi; Sangsig Kim

doi:10.1016/j.tsf.2017.01.068

Thermoelectric characteristics of γ-Ag₂Te nanoparticle thin films on flexible substrates

Seunggen Yang, Kyoungah Cho, Junggwon Yun, Jinyong Choi, Sangsig Kim

School of Electrical Engineering

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

18 Citations (Scopus)

Abstract

In this study, we synthesized Ag₂Te nanoparticles (NPs) in an aqueous solution and investigated the thermoelectric characteristics of Ag₂Te NP thin films on bendable substrates. The Ag₂Te NPs have an average size of 6 nm and a body-centered cubic γ-phase (or, γ-Ag₂Te), and they exhibit typical p-type thermoelectric behaviors. The Seebeck coefficient and electrical conductivity of a γ-Ag₂Te NP thin film are 1330 μV/K and 0.037 S/m, respectively, and the power factor is calculated to be 0.66 μW/mK². Furthermore, our bending study shows the stability of the thermoelectric characteristics of γ-Ag₂Te NP thin films after the bending cycles.

Original language	English
Pages (from-to)	65-68
Number of pages	4
Journal	Thin Solid Films
Volume	641
DOIs	https://doi.org/10.1016/j.tsf.2017.01.068
Publication status	Published - 2017 Nov 1

Keywords

Flexible thermoelectrics
Nanoparticles
Seebeck coefficient
Silver telluride
Thin film

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.tsf.2017.01.068

Cite this

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title = "Thermoelectric characteristics of γ-Ag2Te nanoparticle thin films on flexible substrates",

abstract = "In this study, we synthesized Ag2Te nanoparticles (NPs) in an aqueous solution and investigated the thermoelectric characteristics of Ag2Te NP thin films on bendable substrates. The Ag2Te NPs have an average size of 6 nm and a body-centered cubic γ-phase (or, γ-Ag2Te), and they exhibit typical p-type thermoelectric behaviors. The Seebeck coefficient and electrical conductivity of a γ-Ag2Te NP thin film are 1330 μV/K and 0.037 S/m, respectively, and the power factor is calculated to be 0.66 μW/mK2. Furthermore, our bending study shows the stability of the thermoelectric characteristics of γ-Ag2Te NP thin films after the bending cycles.",

keywords = "Flexible thermoelectrics, Nanoparticles, Seebeck coefficient, Silver telluride, Thin film",

author = "Seunggen Yang and Kyoungah Cho and Junggwon Yun and Jinyong Choi and Sangsig Kim",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government ( MSIP ) ( NRF-2016R1E1A1A02920171 , NRF-2015R1A5A7037674 ), and the Brain Korea 21 Plus Project in 2016. Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

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doi = "10.1016/j.tsf.2017.01.068",

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T1 - Thermoelectric characteristics of γ-Ag2Te nanoparticle thin films on flexible substrates

AU - Yang, Seunggen

AU - Cho, Kyoungah

AU - Yun, Junggwon

AU - Choi, Jinyong

AU - Kim, Sangsig

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government ( MSIP ) ( NRF-2016R1E1A1A02920171 , NRF-2015R1A5A7037674 ), and the Brain Korea 21 Plus Project in 2016. Publisher Copyright: © 2017 Elsevier B.V.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - In this study, we synthesized Ag2Te nanoparticles (NPs) in an aqueous solution and investigated the thermoelectric characteristics of Ag2Te NP thin films on bendable substrates. The Ag2Te NPs have an average size of 6 nm and a body-centered cubic γ-phase (or, γ-Ag2Te), and they exhibit typical p-type thermoelectric behaviors. The Seebeck coefficient and electrical conductivity of a γ-Ag2Te NP thin film are 1330 μV/K and 0.037 S/m, respectively, and the power factor is calculated to be 0.66 μW/mK2. Furthermore, our bending study shows the stability of the thermoelectric characteristics of γ-Ag2Te NP thin films after the bending cycles.

AB - In this study, we synthesized Ag2Te nanoparticles (NPs) in an aqueous solution and investigated the thermoelectric characteristics of Ag2Te NP thin films on bendable substrates. The Ag2Te NPs have an average size of 6 nm and a body-centered cubic γ-phase (or, γ-Ag2Te), and they exhibit typical p-type thermoelectric behaviors. The Seebeck coefficient and electrical conductivity of a γ-Ag2Te NP thin film are 1330 μV/K and 0.037 S/m, respectively, and the power factor is calculated to be 0.66 μW/mK2. Furthermore, our bending study shows the stability of the thermoelectric characteristics of γ-Ag2Te NP thin films after the bending cycles.

KW - Flexible thermoelectrics

KW - Nanoparticles

KW - Seebeck coefficient

KW - Silver telluride

KW - Thin film

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