Transparent, Conductive, and Flexible Multiwalled Carbon Nanotube/Graphene Hybrid Electrodes with Two Three-Dimensional Microstructures

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• 作者：Luowen Peng ; Yiyu Feng ; Peng Lv ; Da Lei ; Yongtao Shen ; Yu Li ; Wei Feng
• 刊名：The Journal of Physical Chemistry C
• 出版年：2012
• 出版时间：March 1, 2012
• 年：2012
• 卷：116
• 期：8
• 页码：4970-4978
• 全文大小：659K
• 年卷期：v.116,no.8(March 1, 2012)
• ISSN：1932-7455

文摘

Transparent, conductive, and flexible multiwalled carbon nanotube (MWCNT)/graphene hybrids with two three-dimensional microstructures鈥攁n interconnected network and a double-layer structure鈥攚ere prepared. The conductivity and performance of MWCNT/graphene films can be controlled by different microstructures. A photoswitch using a layered heterostructure of a CdTe quantum dot on an interconnected MWCNT/graphene (IN-MWCNT/graphene) electrode shows an enhanced reversible photocurrent with a higher on/off ratio than that of double-layer structures(DL-MWCNT/graphene). Electrochemical capacitors using a IN-MWCNT/graphene network also exhibit an outstanding rate capability and good cycling stability due to a large surface area and high porosity. Results indicate that the IN-MWCNT/graphene hybrid with porous structures and strong 蟺-interaction is an excellent conductive network for multifunctional flexible devices. The performance of MWCNT/graphene hybrid films can be further optimized by the improved interface and microstructures.