The electrode-less method, based on microwave dielectric spectroscopy, allows to measure conductivity due to local-scale motions of charge carriers, and is not limited by deep traps of charges at grain boundaries. A drop-cast film of CTPR8Y 16 -C 60 A was photoexcited by 355 nm pulses, allowing to record time-dependent conductivity (Fig. ) from transiently photo-generated charge carriers (electrons and holes); the decay of the curve indicates the extinction of charges due to charge trapping and/or recombination processes. As expected, the maximum values of the transients are linearly dependent on the absorbed photon density, with slight deviation from a perfectly linear relationship caused by more frequent charge recombination as a result of high concentration of generated charges in the conductive material. (Photoconductivity measurements of protein alone could not produce credible data using the current method, as the excitation light at 355 nm has very little interaction with the protein sample.) Thus, the observed photoconductivity for CTPR8Y 16 -C 60 A originates from charge transport through protein-immobilised fullerene contacts.