Te-doped Cu2Se nanoplates with a high average thermoelectric figure of merit

Yang, Lei, Chen, Zhi-Gang, Han, Guang, Hong, Min, Huang, Liqing and Zou, Jin (2016) Te-doped Cu2Se nanoplates with a high average thermoelectric figure of merit. Journal of Materials Chemistry A, 4 23: 9213-9219. doi:10.1039/c6ta02998a


Author Yang, Lei
Chen, Zhi-Gang
Han, Guang
Hong, Min
Huang, Liqing
Zou, Jin
Title Te-doped Cu2Se nanoplates with a high average thermoelectric figure of merit
Formatted title
Te-doped Cu2Se nanoplates with a high average thermoelectric figure of merit
Journal name Journal of Materials Chemistry A   Check publisher's open access policy
ISSN 2050-7496
2050-7488
Publication date 2016-06-21
Year available 2016
Sub-type Article (original research)
DOI 10.1039/c6ta02998a
Open Access Status Not yet assessed
Volume 4
Issue 23
Start page 9213
End page 9219
Total pages 7
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2017
Language eng
Formatted abstract
Understanding the impact of dopants can direct the design of high-performance thermoelectric nanomaterials. In this study, we use Te as a dopant to modify Cu2Se nanoplates. It has been found that Te can be uniformly doped and distributed in the synthesized products to form Cu2Se1-xTex nanoplates with controlled Te content. Also, a phase transition from the original β-phase Cu2Se nanoplates to α-phase Cu2Se1-xTex nanoplates was observed with increasing Te doping level. From the thermoelectric evaluation of the sintered pellets of Cu2Se1-xTex nanoplates, it was found that Te can effectively modify their thermoelectric properties, especially their electrical transport properties. Finally, a high average figure-of-merit value of ∼1.2 in the temperature range from 400 K to 850 K was observed for the Cu2Se0.98Te0.02 sample.
Keyword Impact of dopants
High-performance thermoelectric nanomaterials
Dopants
Cu2Se nanoplates
Te doping level
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Centre for Microscopy and Microanalysis Publications
 
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