▎ 摘　　要

Silver-reduced graphene oxide (Ag-rGO) composite films have been prepared via layer-by-layer spin coating method. The Ag-rGO samples were then employed as cathode in a dye-sensitized solar cell (DSSC). The main aim of this work is to study the relationship between spin coating cycle of Ag-rGO with the performance parameters of the device. Various spin coating cycles have been chosen, namely, 3,4,5,6 and 7 times. The highest transmittance of the sample is 7.5% corresponding with 3 spin-coating cycles. The highest ri of 0.840%, J(sc) of 4.404 mA cm(-2) and FF of 0.329 were obtained from the device with 4 spin-coating cycles. This is due to this device has the smallest charge transfer resistance at the interface of Ag-rGO/electrolyte (R-ct1) of 14.37 Omega.