Thermoelectric characteristics of nanocomposites made of HgSe and Ag nanoparticles for flexible thermoelectric devices

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

doi:10.1007/s12274-016-1327-z

Thermoelectric characteristics of nanocomposites made of HgSe and Ag nanoparticles for flexible thermoelectric devices

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

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

7 Citations (Scopus)

Abstract

We synthesized thermoelectric nanocomposites by mixing HgSe nanoparticles (NPs) and Ag NPs in a solution and investigated the thermoelectric properties of the nanocomposite thin films on flexible plastic substrates. The X-ray diffraction patterns and the X-ray photoelectron spectra of the nanocomposites demonstrate that cation-exchange reactions occurred spontaneously in the mixed solution of HgSe and Ag NPs and that the HgSe NPs were completely converted to Ag₂Se when the Ag NP content was 20 vol.%. The maximum power factor and the thermoelectric figure of merit were obtained as 75 μW/mK² and 0.043 at 300 K, respectively, when the Ag NP content was 10 vol.%, which is 100 times higher than that of HgSe NP thin films. In addition, the mechanical stability of the thermoelectric nanocomposite film was confirmed through repeated bending tests. [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	683-689
Number of pages	7
Journal	Nano Research
Volume	10
Issue number	2
DOIs	https://doi.org/10.1007/s12274-016-1327-z
Publication status	Published - 2017 Feb 1

Bibliographical note

Funding Information:
This work was supported by the Mid-career Researcher Program (No. NRF-2013R1A2A1A03070750) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology, the National Research Foundation of Korea (NRF) Grant funded by the Korean Government (MSIP) (No. NRF-2015R1A5A7037674), and the Brain Korea 21 Plus Project in 2016.

Publisher Copyright:
© 2017, Tsinghua University Press and Springer-Verlag Berlin Heidelberg.

Keywords

AgSe
HgSe
Seebeck
flexible thermoelectric
nanocomposite
nanoparticles

ASJC Scopus subject areas

General Materials Science
Electrical and Electronic Engineering

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10.1007/s12274-016-1327-z

Cite this

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abstract = "We synthesized thermoelectric nanocomposites by mixing HgSe nanoparticles (NPs) and Ag NPs in a solution and investigated the thermoelectric properties of the nanocomposite thin films on flexible plastic substrates. The X-ray diffraction patterns and the X-ray photoelectron spectra of the nanocomposites demonstrate that cation-exchange reactions occurred spontaneously in the mixed solution of HgSe and Ag NPs and that the HgSe NPs were completely converted to Ag2Se when the Ag NP content was 20 vol.%. The maximum power factor and the thermoelectric figure of merit were obtained as 75 μW/mK2 and 0.043 at 300 K, respectively, when the Ag NP content was 10 vol.%, which is 100 times higher than that of HgSe NP thin films. In addition, the mechanical stability of the thermoelectric nanocomposite film was confirmed through repeated bending tests. [Figure not available: see fulltext.]",

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

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AU - Yun, Junggwon

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AU - Choi, Jinyong

AU - Kim, Sangsig

N1 - Funding Information: This work was supported by the Mid-career Researcher Program (No. NRF-2013R1A2A1A03070750) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology, the National Research Foundation of Korea (NRF) Grant funded by the Korean Government (MSIP) (No. NRF-2015R1A5A7037674), and the Brain Korea 21 Plus Project in 2016. Publisher Copyright: © 2017, Tsinghua University Press and Springer-Verlag Berlin Heidelberg.

PY - 2017/2/1

Y1 - 2017/2/1

N2 - We synthesized thermoelectric nanocomposites by mixing HgSe nanoparticles (NPs) and Ag NPs in a solution and investigated the thermoelectric properties of the nanocomposite thin films on flexible plastic substrates. The X-ray diffraction patterns and the X-ray photoelectron spectra of the nanocomposites demonstrate that cation-exchange reactions occurred spontaneously in the mixed solution of HgSe and Ag NPs and that the HgSe NPs were completely converted to Ag2Se when the Ag NP content was 20 vol.%. The maximum power factor and the thermoelectric figure of merit were obtained as 75 μW/mK2 and 0.043 at 300 K, respectively, when the Ag NP content was 10 vol.%, which is 100 times higher than that of HgSe NP thin films. In addition, the mechanical stability of the thermoelectric nanocomposite film was confirmed through repeated bending tests. [Figure not available: see fulltext.]

AB - We synthesized thermoelectric nanocomposites by mixing HgSe nanoparticles (NPs) and Ag NPs in a solution and investigated the thermoelectric properties of the nanocomposite thin films on flexible plastic substrates. The X-ray diffraction patterns and the X-ray photoelectron spectra of the nanocomposites demonstrate that cation-exchange reactions occurred spontaneously in the mixed solution of HgSe and Ag NPs and that the HgSe NPs were completely converted to Ag2Se when the Ag NP content was 20 vol.%. The maximum power factor and the thermoelectric figure of merit were obtained as 75 μW/mK2 and 0.043 at 300 K, respectively, when the Ag NP content was 10 vol.%, which is 100 times higher than that of HgSe NP thin films. In addition, the mechanical stability of the thermoelectric nanocomposite film was confirmed through repeated bending tests. [Figure not available: see fulltext.]

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Thermoelectric characteristics of nanocomposites made of HgSe and Ag nanoparticles for flexible thermoelectric devices

Abstract

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