Improved thermoelectric power of HgTe nanoparticle thin films embedded with Ag nanoparticles

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

doi:10.1166/jnn.2016.13196

Improved thermoelectric power of HgTe nanoparticle thin films embedded with Ag nanoparticles

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

School of Electrical Engineering

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

Abstract

In this study, we demonstrate an enhancement in the thermoelectric characteristics of a HgTe nanoparticle (NP) thin film with a Ag NP layer. For a thermoelectric HgTe NP thin film, the Seebeck coefficient is reduced from 1950 to 1690 μV/K with the formation of an Ag NP layer in the middle of the film, but the electrical conductivity is significantly enhanced. The reduction of the Seebeck coefficient is attributed to an increase in the carrier concentration caused by the presence of the metal NP layer. Owing to the enhancement in electrical conductivity, the thermoelectric power of the HgTe NP thin film embedded with Ag NPs is improved tenfold as compared to that of a HgTe NP thin film without any Ag NPs.

Original language	English
Pages (from-to)	10566-10568
Number of pages	3
Journal	Journal of Nanoscience and Nanotechnology
Volume	16
Issue number	10
DOIs	https://doi.org/10.1166/jnn.2016.13196
Publication status	Published - 2016 Oct

Keywords

Nanoparticle
Thermoelectric
Thin film

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Biomedical Engineering
Materials Science(all)
Condensed Matter Physics

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title = "Improved thermoelectric power of HgTe nanoparticle thin films embedded with Ag nanoparticles",

abstract = "In this study, we demonstrate an enhancement in the thermoelectric characteristics of a HgTe nanoparticle (NP) thin film with a Ag NP layer. For a thermoelectric HgTe NP thin film, the Seebeck coefficient is reduced from 1950 to 1690 μV/K with the formation of an Ag NP layer in the middle of the film, but the electrical conductivity is significantly enhanced. The reduction of the Seebeck coefficient is attributed to an increase in the carrier concentration caused by the presence of the metal NP layer. Owing to the enhancement in electrical conductivity, the thermoelectric power of the HgTe NP thin film embedded with Ag NPs is improved tenfold as compared to that of a HgTe NP thin film without any Ag NPs.",

keywords = "Nanoparticle, Thermoelectric, Thin film",

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

note = "Funding Information: This research was supported by the Mid-Career Researcher Program (NRF-2013R1A2A1A03070750) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology, a Korea University Grant, and the Brain Korea 21 Plus Project in 2016. Publisher Copyright: Copyright {\textcopyright} 2016 American Scientific Publishers All rights reserved.",

year = "2016",

month = oct,

doi = "10.1166/jnn.2016.13196",

language = "English",

volume = "16",

pages = "10566--10568",

journal = "Journal of Nanoscience and Nanotechnology",

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AU - Yang, Seunggen

AU - Cho, Kyoungah

AU - Yun, Junggwon

AU - Choi, Jinyong

AU - Kim, Sangsig

N1 - Funding Information: This research was supported by the Mid-Career Researcher Program (NRF-2013R1A2A1A03070750) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology, a Korea University Grant, and the Brain Korea 21 Plus Project in 2016. Publisher Copyright: Copyright © 2016 American Scientific Publishers All rights reserved.

PY - 2016/10

Y1 - 2016/10

N2 - In this study, we demonstrate an enhancement in the thermoelectric characteristics of a HgTe nanoparticle (NP) thin film with a Ag NP layer. For a thermoelectric HgTe NP thin film, the Seebeck coefficient is reduced from 1950 to 1690 μV/K with the formation of an Ag NP layer in the middle of the film, but the electrical conductivity is significantly enhanced. The reduction of the Seebeck coefficient is attributed to an increase in the carrier concentration caused by the presence of the metal NP layer. Owing to the enhancement in electrical conductivity, the thermoelectric power of the HgTe NP thin film embedded with Ag NPs is improved tenfold as compared to that of a HgTe NP thin film without any Ag NPs.

AB - In this study, we demonstrate an enhancement in the thermoelectric characteristics of a HgTe nanoparticle (NP) thin film with a Ag NP layer. For a thermoelectric HgTe NP thin film, the Seebeck coefficient is reduced from 1950 to 1690 μV/K with the formation of an Ag NP layer in the middle of the film, but the electrical conductivity is significantly enhanced. The reduction of the Seebeck coefficient is attributed to an increase in the carrier concentration caused by the presence of the metal NP layer. Owing to the enhancement in electrical conductivity, the thermoelectric power of the HgTe NP thin film embedded with Ag NPs is improved tenfold as compared to that of a HgTe NP thin film without any Ag NPs.

KW - Nanoparticle

KW - Thermoelectric

KW - Thin film

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SP - 10566

EP - 10568

JO - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

SN - 1533-4880

IS - 10

ER -

Improved thermoelectric power of HgTe nanoparticle thin films embedded with Ag nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

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