Improved conduction in transparent single walled carbon nanotube networks drop-cast from volatile amine dispersions
作者： Shrividya Ravi , Alan B. Kaiser , Christopher W. Bumby
DOI: 10.1016/J.CPLETT.2010.06.084
关键词: Carbon nanotube 、 Drop (liquid) 、 Conductivity 、 Nanotechnology 、 Solvent 、 Variable-range hopping 、 Materials science 、 Annealing (metallurgy) 、 Chemical engineering 、 Metal 、 Thermal conduction
摘要: Abstract Thin single walled carbon nanotube (SWNT) films have been fabricated by drop-casting from SWNT dispersions in the volatile organic solvent, n -butylamine. This solvent can be removed a simple annealing step which leads to substantial improvements both transparency and conductivity of films. The key factor this increase is reduction barriers networks upon surfactant removal, leading enhanced conduction variable range hopping. Contributions increased also arise thermally activated current at temperatures above ∼225 K small metallic contribution visible below ∼3 K.
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