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Definition of a Quantum Dot :

Optimized Quantum Dot Solar Cells:

Using quantum dot optomized solar cell materials has many benefits to current applications.

Unlike organic dye molecules of dye-sensitized solar cells, the absorbsion band of quantum dots can be tailored by changing the process variation (including material composition and particle type) to make the appropriate light absorption material.

Presently, there is always a high degree of instability when using organic dye molecules in outdoor environments due to light and heat effects. The biggest problem with molecule dye is the sun's ultraviolet radiation causing a decline in efficiency due to molecular cracking phenomenon. Instead, it is very stable to use the quantum dot solar cells.

Furthermore, the quantum dots have a higher extinction coefficient than the dye molecules. Not only can it reduce the dark current generation, but also increase the overall efficiency of the battery. In addition, the charge separation rate is faster.

Moreover, the quantum dots can produce multiple excitons due to the impact of ionization technology in each of the excitation processes. This can allow the efficiency to reach 200%-300%.

All of the above points show that quantum dots perform better than dye molecules.