Light energy can be converted into electric energy, the main principle is the same as using dyes, but the conversion efficiency of quantum dots is theoretically higher than that of dyes, so there is a lot of research now.

Dye-sensitized solar cells can generate electricity only by ordinary indoor light, which is another choice for auxiliary power supply of electronic products.

For example, it can be directly built into mobile phones, watches and other products that consume less electricity, or an external folding charger. Another important application is to apply this dye-sensitized solar material to clothes in combination with textiles for portable power generation, which is expected to have great market potential in the application of mobile power supply in the future.

Structural composition

It is mainly composed of nano porous semiconductor film, dye sensitizer, redox electrolyte, counter electrode and conductive substrate. Nano-porous semiconductor films are usually metal oxides (TiO2 _ 2, SnO2 _ 2, ZnO, etc. ), which are gathered on the glass plate with transparent conductive film as the cathode of DSC. As a reduction catalyst, the counter electrode is usually plated with platinum on the glass with transparent conductive film. Sensitizing dyes are adsorbed on the surface of nano-porous titanium dioxide films. Electrolyte containing redox pairs is filled between the positive and negative electrodes, and KCl (potassium chloride) is the most commonly used one.

Refer to the above content: Baidu Encyclopedia-Dye-sensitized solar cells