Evaluation of the Electrical Behavior of Polydisperse and Monodisperse Carbon Nanotube Networks

In order to fully realize the potential of single wall carbon nanotube (SWNT) networks in organic electronic devices, it may be necessary to utilize monodisperse networks that leverage the homogeneity of the film to achieve optimal device performance. Therefore, the optoelectronic characteristics of SWNTs in homogeneous and heterogeneous electronic type compositions are evaluated in this report. In particular, sources of film to film conductivity variation and the effect of moderate and heavy charge carrier doping are elucidated. The electrical conductivity analysis is supported by corroborative optical absorption spectra and SWNT electronic band structure theory.