TY - JOUR
T1 - Improved Thermoelectric Performance in Flexible Tellurium Nanowires/Reduced Graphene Oxide Sandwich Structure Hybrid Films
AU - Gao, Jie
AU - Liu, Chengyan
AU - Miao, Lei
AU - Wang, Xiaoyang
AU - Peng, Ying
AU - Chen, Yu
N1 - Funding Information:
This work was supported by the Guangxi Natural Science Foundation of China (Grant No. 2015GXN SFFA139002) and the National Natural Science Foundation of China (Grant No. 51572049, 515 62005).
Publisher Copyright:
© 2016, The Minerals, Metals & Materials Society.
PY - 2017/5/1
Y1 - 2017/5/1
N2 - With a high flexibility and an adjustable electronic structure, reduced graphene oxide (RGO) is a potential candidate for flexible thermoelectric materials. Here, we report that flexible RGO/tellurium nanowires (Te NWs)/RGO sandwich structure hybrid films are prepared on glass fabrics through the drop-cast method. The addition of 20 wt.% Te NWs into a RGO matrix remarkably improves the Seebeck coefficient from 15.2 μV/K to 89.7 μV/K while maintaining relatively high electrical conductivity, thus resulting in a one order of magnitude higher power factor value compared with the Te NWs. According to the values of carrier mobility and concentration of hybrid films, the improved thermoelectric properties are presented because of the energy filtering effect on the interfaces in hybrid films. This article suggests that RGO/Te NWs/RGO hybrid films would be promising for fabricating flexible energy sources.
AB - With a high flexibility and an adjustable electronic structure, reduced graphene oxide (RGO) is a potential candidate for flexible thermoelectric materials. Here, we report that flexible RGO/tellurium nanowires (Te NWs)/RGO sandwich structure hybrid films are prepared on glass fabrics through the drop-cast method. The addition of 20 wt.% Te NWs into a RGO matrix remarkably improves the Seebeck coefficient from 15.2 μV/K to 89.7 μV/K while maintaining relatively high electrical conductivity, thus resulting in a one order of magnitude higher power factor value compared with the Te NWs. According to the values of carrier mobility and concentration of hybrid films, the improved thermoelectric properties are presented because of the energy filtering effect on the interfaces in hybrid films. This article suggests that RGO/Te NWs/RGO hybrid films would be promising for fabricating flexible energy sources.
KW - Reduced graphene oxide
KW - flexible hybrid film
KW - tellurium nanowires
KW - thermoelectric
UR - http://www.scopus.com/inward/record.url?scp=84997673992&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84997673992&partnerID=8YFLogxK
U2 - 10.1007/s11664-016-5143-8
DO - 10.1007/s11664-016-5143-8
M3 - Article
AN - SCOPUS:84997673992
SN - 0361-5235
VL - 46
SP - 3049
EP - 3056
JO - Journal of Electronic Materials
JF - Journal of Electronic Materials
IS - 5
ER -