Improving the Efficiency of Quantum Dots Sensitized Solar Cell by Using Pt Counter Electrode

A novel Pt electrode was obtained when Pt was deposited on the rough surface of the sand-blasted slide by sputtering. The photovoltaic properties of CdSe quantum dots sensitized solar cell (QDSC) based on this novel Pt counter electrode was reported for the first time. The results show that the efficiency of QDSC based on the novel Pt counter electrode was improved by 63% in comparison with the cell based on the conventional Pt /FTO counter electrode because of the lower charge transfer resistance at the interface between the polysulfide electrolyte and the counter electrode.