Abstract
We used all-solution method to fabricate organic-inorganic perovskite solar cells. The device structure was ITO/PEDOT:PSS/Perovskite(CH3NH-3PbI3)/PCBM/Al.First,we used different type of PEDOT:PSS,AI4083 and PH1000 as hole transport layer to make two solar cells and compare the difference of measurement condition.We found highly conductive PEDOT:PSS-PH1000 significantly affects the observation results.Therefore,mask shadowing should be used to avoid getting wrong measurement result.In addition,scan rate and scan direction also affect measurement result.We found scan rate and scan direction have huge impact on measurement result due to hysteresis.In term of our device structure,the measurement result became stabilized with slow scan rate.Under slow scan rate,the measurement result is of valuable reference.