Enhanced power factor in flexible reduced graphene oxide/nanowires hybrid films for thermoelectrics

被引：30
作者：
Gao, Jie [1 ,2 ]
Liu, Chengyan [2 ]
Miao, Lei [2 ]
Wang, Xiaoyang [2 ]
Peng, Ying [2 ]
Chen, Yu [1 ]
机构：
[1] E China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China
[2] Guilin Univ Elect Technol, Guangxi Collaborat Innovat Ctr Struct & Property, Sch Mat Sci & Engn, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China
来源：
RSC ADVANCES | 2016年 / 6卷 / 38期
基金：
中国国家自然科学基金;
关键词：
OXIDE; PROGRESS; FIGURE;
D O I：
10.1039/c6ra00916f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Highly-flexible thermoelectric hybrid films based on reduced graphene oxide (RGO) and tellurium nanowire (Te NW) layered structure are fabricated via vacuum filtration. The electrical conductivity and Seebeck coefficient of the optimized hybrid film can reach 978 S m(-1) and 286 mu V K-1, respectively, pushing the power factor (PF) value up to 80 mu W (m K-2)(-1) at 40 degrees C, approximately 80 times larger than the pure Te NW film, possibly due to the combination of the high carrier concentration of RGO and high carrier mobility of Te NWs. Meanwhile, the transport characteristics of hybrid films were revealed by the measurements of electrical conductivity, Seebeck coefficient, and Hall effect. This article provides a possible access to high-performance and flexible TE films based on RGO sheets and inorganic semiconductors.
引用
收藏
页码：31580 / 31587
页数：8
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