We have studied the contact resistance (R-C) between Au and a solution-processed film of carbon nanotubes (CNTs). The test element group of the contact chain is modeled as a simple periodic series of resistors, the R-C represents the resistor of the Au-CNT contact. The contact resistivity (pc) was evaluated from R-C by multiplying the contact area. When the sheet resistance (R-sh) of the CNT layer is 200 Omega/sq, the rho(C) is 27 mu Omega cm(2), which is similar to 30 times of that of the Au-IZO contact at the same Rh. This is mainly due to the three-dimensional shape of the CNT surface, resulting in a smaller contact area on the flat surface of the Au. (C) 2010 Elsevier Ltd. All rights reserved.