According to the researchers, the combination of these new materials led to improved performance of solar cells more efficient and cheaper than current solar cells made from silicon or thin-film. Quantum dots are tiny crystals measuring only a few nanometers has several times tried to replace the current traditional semiconductors.
Although quantum-dot-sensitized solar cells can be set to different wavelengths of light, but it has very low efficiency. The researchers tried to eliminate the weaknesses of quantum-dot-sensitized by adding an organic molecule using the semiconductor titanium oxide and cadmium sulfide quantum dots. In this way, the conversion of light into electricity can be improved and makes 3-fold increases in the efficiency of solar cells.