The problems occurred during the development of quantum dot sensitized solar cell and the solution to them

The efficiency of the quantum dot sensitized solar cell have broken through 5% up to now. But there is a big distance between the efficiency of quantum dot sensitized solar cell with that of the dye sensitized solar cell which is 12%. Five points which are charge recombination, light harvesting, structure of the photoanode, the electrolyte and the counter electrode were put forward as the reasons for the low efficiency of the quantum dot sensitized solar cell. Meanwhile the solution to them by researchers in the field of quantum dot sensitized solar cell was also introduced.