Electrolyte additive, electrolyte and solar cell thereof

Abstract

The invention provides an electrolyte additive. The electrolyte additive is a quaternary ammonium ionic liquid additive. The electrolyte additive has a following chemical formula: FORMULA, wherein R is an alkyl substituent of C1 to C16; and X<o-> is a negative ion, i.e. one ion of Cl<->, Br<->, I<->, BF4<->, PF6<->, CF3SO3<->, C2F5SO3<->, [N(SO2CF3)2]<->, [N(SO2C2F5)2]<->, [N(SO2C3F7)2]<->, SCN<->, N(CN)2<->, C(CN3)<->, SiF6<->, B(CN)4<->, CF3COO<->, C2F5COO<->, NO3<->, SO4<2->, ClO4<-> and PO4<->. The electrolyte additive provided by the invention and used for a dye sensitized solar cell is simple in steps of synthesizing, stable in property, low in price and difficult to volatize and leak, and causes no pollution to the environment. Since the electrolyte additive provided by the invention is added to an electrolyte, the prepared dye sensitized solar cell is caused to have excellent property and high stability, and further to be friendlier to the environment; and therefore, the unique advantage of the green energy is highlighted more obviously.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to an electrolyte additive for a dye-sensitized solar cell, an electrolyte and a solar cell thereof. Background technique [0002] Dye-sensitized Solar Cells (DSCs) is a new type of efficient and cheap organic thin film solar cells. The dye-sensitized solar cell includes transparent conductive substrates facing each other and used to prepare photoanodes and counter electrodes, a nanocrystalline porous film deposited on one of the transparent conductive substrates, and adsorbed on the nanocrystalline porous film. a dye sensitizer on the surface of the film, and an electrolyte disposed between the transparent conductive substrates. [0003] The working principle of the dye-sensitized solar cell is as follows: first, the dye sensitizer is irradiated by sunlight to generate electron-hole pairs; second, the photogenerated electrons are quickly injected into the nanocrystalline porou...

AI Technical Summary

Problems solved by technology

[0008] The invention aims at providing an electrolyte additive for the disadvantages of the prior art, such as the difficulty in the synthesis process of the traditional electrolyte additive and the high manufacturing cost.

[0009] Another object of the present invention is to provide a preparation method for electrolyte additives in view of defects such as the difficulty in the synthesis process of traditional electrolyte additives and the high manufacturing cost in the prior art

[0010] The third purpose of the present invention is to provide a method with simple synthesis steps, stable performance, low price, and not easy to volatilize and leak, and not easy to volatilize and leak, in view of the shortcomings of the traditional electrolyte additives such as difficult synthesis process and expensive manufacturing cost in the prior art. Electrolytes that pollute the environment

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