Expanded Graphite/Carbon Nanotube as Counter Electrode for DSSCs
A kind of carbon nanotube/expanded graphite (EG/CNT) was used as counter electrodes for the DSSCs following five different weight ratios of 1:0, 1:1, 1:2, 2:1, and 0:1. The impedance spectra and J-V curves were recorded using the Zahner Zennium CIMPS system based on an IM6x electrochemical workstation. The dynamic parameters of the cells were discussed with the intensity-modulated photo current spectroscopy (IMPS) and the intensity modulated photo voltage spectroscopy (IMVS) using white light-emitting diode (75w/m2, 604nm, LED) as the light source.
X. Li et al., "Expanded Graphite/Carbon Nanotube as Counter Electrode for DSSCs", Advanced Materials Research, Vols. 311-313, pp. 1246-1249, 2011