Thermoelectric Properties of a Single Crystalline Ag2Te Nanowire

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/486205.do
DOI
10.1155/2017/4308968
Title
Thermoelectric Properties of a Single Crystalline Ag2Te Nanowire
Description
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government (MEST) (no.2014R1A2A1A11050401).
abstract
Silver chalcogenides have received much attention in potential thermoelectric materials research because of high carrier mobility and low effective mass. Among them, in Ag2Te, it was reported that the phase transition from monoclinic to cubic phase occurs at relatively low temperatures, so that extensive research for effective application using this material has been aroused. In this work, we investigated how 1-dimensional nanostructure affects the thermoelectric properties through as-synthesized single crystalline Ag2Te nanowires. Adopting well-defined thermoelectric MEMS device structure and transferring an individual Ag2Te nanowire, we measure electrical resistance and Seebeck coefficient as a function of temperature. When the phase changes frommonoclinic to cubic, the resistance increases, while absolute Seebeck coefficient value decreases. These results are compared with previous reports for Ag2Te bulk and film, suggesting the increased density of states of the carriers due to nanowire structure.
provenance
Made available in Cube on 2018-09-28T16:01:22Z (GMT). No. of bitstreams: 0
language
English
author
Lee, Sunghun
Shin, Ho Sun
Song, Jae Yong
Jung, Myung-Hwa
orcid
Lee, Sunghun/0000-0002-1974-8110
accessioned
2018-09-28T16:01:22Z
available
2018-09-28T16:01:22Z
issued
2017
citation
JOURNAL OF NANOMATERIALS
issn
1687-4110
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/486205.do
Funder
과학기술정보통신부
Funding Program
한국표준과학연구원연구운영비지원
Project ID
1711062930
Jurisdiction
Rep.of Korea
Project Name
저차원 소재게놈 평가기술 개발
rights
openAccess
type
article


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