2026-09-21T13:40:41Zhttps://ecommons.cornell.edu/server/oai/requestoai:ecommons.cornell.edu:1813/568612026-05-15T19:41:56Zcom_1813_35col_1813_47
Lien, Huai-Hsun
Jena, Debdeep
Xing, Huili Grace
2018-04-26T14:16:53Z
2018-04-26T14:16:53Z
2017-08-30
ProQuest Submission ID: 10138
ProQuest Publication ID: 10604124
https://hdl.handle.net/1813/56861
https://doi.org/10.7298/X4RR1WD6
10361538
Niobium diselenide (NbSe2) possess a high electrical conductivity and low thermal conductivity, making it a candidate for thermoelectric devices. While the electronic properties of (NbSe2) has been relatively explored, the lateral thermal conductivity for (NbSe2) has remained unknown. In this report, we present the lateral thermal conductivity of (NbSe2) determined by nondestructive opto-thermo method utilizing micro-Raman spectroscopy. The thermal conductivity k=15(+4/-4) W/mK was obtained at room temperature and we further verified by hall measurements that (NbSe2) conducts heat mostly through electrons. The results shed lights on the potential of Niobium diselenide as a thermoelectric device.
en_US
Hall measurement
niobium diselenide
thermal conductivity
Raman
transitional metal dichacogenides
Physics
Materials Science
Electrical engineering
thin film
THERMAL CONDUCTIVITY OF THIN FILM NIOBIUM DISELENIDE FROM TEMPERATURE-DEPENDENT RAMAN
dissertation or thesis
application/pdf
Materials Science and Engineering
Cornell University
Master of Science
M.S., Materials Science and Engineering
https://hdl.handle.net/1813/59810
Publication
Cornell Theses and Dissertations
Lien, Huai-Hsun
5893a6ea-7af3-41d7-abc6-04bcd26ab5df
open.access
open.access
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<Title>THERMAL CONDUCTIVITY OF THIN FILM NIOBIUM DISELENIDE FROM TEMPERATURE-DEPENDENT RAMAN</Title>
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<Keyword>Hall measurement</Keyword>
<Keyword>niobium diselenide</Keyword>
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<Abstract>Niobium diselenide (NbSe2) possess a high electrical conductivity and low thermal conductivity, making it a candidate for thermoelectric devices. While the electronic properties of (NbSe2) has been relatively explored, the lateral thermal conductivity for (NbSe2) has remained unknown. In this report, we present the lateral thermal conductivity of (NbSe2) determined by nondestructive opto-thermo method utilizing micro-Raman spectroscopy. The thermal conductivity k=15(+4/-4) W/mK was obtained at room temperature and we further verified by hall measurements that (NbSe2) conducts heat mostly through electrons. The results shed lights on the potential of Niobium diselenide as a thermoelectric device.</Abstract>
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