Improved electrical conductivity of a non-covalently dispersed graphene–carbon nanotube film by chemical p-type doping

Surface Chemical Modification of Carbon Nanowalls for Wide-Range Control of Surface Wettability

“…In the case of polymeric films CO and CCOOH bond peaks, carbonyl group (CO) and epoxy bridges (OCO) ones, and COOH/R ones are generally found at around 286.5, 287.0, and 289.4 eV, respectively. On the other hand, in the case of GO or oxidized single‐wall carbon nanotube (SWCNT), CO and CO bonds of C 1s spectra are reported to appear around 286.5 and 288.5 eV, respectively . This means that there are various types of oxygen‐related components in the CNWs after the Ar plasma surface treatment, although components related to the oxidized graphene are small.…”

Graphene and Carbon Nanotube Hybrid Structure: A Review

“…Early researches on GNHS family compounds are focused on the assembly of GNHS with ordered structure for specific application. Generally, the synthesis/fabrication approaches of GNHSs can be classified into four different categories, including solution processing/casting [7][8][9][10][11][12] , layer-by-layer deposition [13][14][15] , vacuum filtration 16,17 and chemical vapour deposition (CVD) 5,[18][19][20][21][22][23][24][25][26][27][28][29][30][31] . Among all these methods, CVD approach is shown to build hierarchical nanostructures with reasonable structure stability and mechanical strength 18,32 .…”

Printing Ink Formulations

“…Recently, nano-size carbon materials have been used in the conductive inks. Graphene nanosheets can be efficiently used alone, or as nanocomposites with different materials for modified electrical properties (Yang, Zhan, Zhao, & Liu, 2012), in combination with Ag (Zheng, Zhang, Zhang, Guo, & Liu, 2012), or carbon nanotubes (Jang, Chae, Lee, Song, & Baik, 2012, Kossyrev, 2012, or PEDOT: PSS (Karuwan et al, 2012;Sriprachuabwong et al, 2011) for improved conductivity. When carbon nanotubes are produced, the resulting material is a mixture of r s ¼ ðresistance of a rectangular region of the printed conductorÞ * ðwidth of regionÞ ðlength of regionÞ conductive and semiconductive nanotubes (Lu & Chen, 2005), and thus, it is necessary to separate these two types of nanotubes, which increases the cost of the material.…”