Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 8, Pages 5735-5743Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am5002772
Keywords
Bi2Te3; poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate); thermoelectric properties; composite films
Funding
- 973 Project [2013CB632500]
- National Natural Science Foundation of China [51271133]
- Doctoral Program of Higher Education of China
- foundations of State Key Lab of Advanced Technology for Materials Synthesis and Processing (Wuhan University of Technology)
- State Key Lab of Silicon Materials (Zhejiang University)
- Deakin University
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Bi2Te3 based alloy nanosheet (NS)/poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PE-DOT:PSS) composite films were prepared separately by spin coating and drop casting techniques. The drop cast composite film containing 4.10 wt % Bi2Te3 based alloy NSs showed electrical conductivity as high as 1295.21 S/cm, which is higher than that (753.8 S/cm) of a dimethyl sulfoxide doped PEDOT:PSS film prepared under the same condition and that (850-1250 S/cm) of the Bi2Te3 based alloy bulk material. The composite film also showed a very high power factor value, similar to 32.26 mu Wm(-1) K-2. With the content of Bi2Te3 based alloy NSs increasing from 0 to 4.10 wt %, the electrical conductivity and Seebeck coefficient of the composite films increase simultaneously.
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