期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 7, 页码 6306-6313出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b15327
关键词
layer-by-layer assembly; thermoelectric; power factor; carbon nanotubes; polymer nanocomposites; electrochemical polymerization
资金
- Direccion General de Investigacion Cientifica y Tecnica of the Programme Consolider Ingenio [CSD2010-0044]
- Direccion General de Investigacion Cientifica y Tecnica [MAT2015-63955-R]
- Spanish Ministry of Education through the FPU training programme
- U.S. Air Force Office of Scientific Research [FA9550-13-1-0085]
In an effort to produce effective thermoelectric nanocomposites with multiwalled carbon nanotubes (MWCNT), layer-by-layer assembly was combined with electrochemical polymerization to create synergy that would produce a high power factor. Nanolayers of MWCNT stabilized with poly(diallyldimethylammonium chloride) or sodium deoxycholate were alternately deposited from water. Poly(3,4-ethylene dioxythiophene) [PEDOT] was then synthesized electrochemically by using this MWCNT-based multilayer thin film as the working electrode. Microscopic images show a homogeneous distribution of PEDOT around the MWCNT. The electrical resistance, conductivity (sigma) and Seebeck coefficient (5) were measured before and after the PEDOT polymerization. A 30 bilayer MWCNT film (<1 mu m thick) infused with PEDOT is shown to achieve a power factor (PF = S-2 sigma) of 155 mu W/m K-2, which is the highest value ever reported for a completely organic MWCNT-based material and competitive with lead telluride at room temperature. The ability of this MWCNT-PEDOT film to generate power was demonstrated with a cylindrical thermoelectric generator that produced 5.5 mu W with a 30 K temperature differential. This unique nanocomposite, prepared from water with relatively inexpensive ingredients, should open up new opportunities to recycle waste heat in portable/ wearable electronics and other applications where low weight and mechanical flexibility are needed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据