Distinguishing Field Effects from Charge Effects in the Optoelectronic Properties of Carbon Nanotube Films
Figure 2
SEM images of nanotube films used in this study. (a) Pure, conductive SWNT film used for CA. (b) Insulating SWNT composite with PVA used for EA. The bright flecks in the PVA composite image are thought to be PVA aggregates that did not fully dissolve during processing. The lower contrast and increased streaking in the PVA composite image are due to charging in the sample.
