Triphenylamine organic dye with gradient power supply group and application thereof

Abstract

The invention discloses a triphenylamine organic dye with a gradient power supply group. The organic dye has a chemical structural formula shown in the specifications, wherein R is the alkyl group of C1 to C12; Ar1 and Ar2 are aromatic heterocyclic groups of C4 to C20 or aromatic cyclic groups of C6 to C20 which contain S or O; and a triphenylamine compound can be applied to an organic dye-sensitized solar cell serving as a photosensitizer. The triphenylamine organic dye with the gradient power supply group is applied to the dye-sensitized solar cell so as to solve the problem of difficult popularization of a ruthenium-based bipyridyl composition dye sensitizer due to high price. A dye molecule has the structural characteristics of a plurality of power supply groups and gradient power supply, is easy to undergo oxidation and reduction reactions, has high electron supplying capability and can be reduced and regenerated by capturing electrons from an electrolyte. The organic dye has the advantages of easy preparation method, simple process, low cost and contribution to popularization and application.

Description

【Technical field】 The invention belongs to the technical field of organic dye-sensitized solar cells, and in particular relates to a triphenylamine organic dye with a gradient power supply group and its application. 【Background technique】 Since entering the 21st century, energy and the environment have increasingly become major issues to be solved urgently for future human beings. From a long-term point of view, the energy needed by human beings can only come from renewable energy sources, and solar energy has the most promising application prospects. Power generation through photoelectrochemical solar cells is considered to be the most effective way to utilize solar energy, and solar cells are clean and pollution-free, which can not only effectively alleviate the problem of energy shortage, but also meet the strategic goal of sustainable development in my country. Commercialized solar cells are mostly made of polysilicon and amorphous silicon materials, and the photoelect...

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Problems solved by technology

However, there are few reports on organic dye sensitizers based on Michler's ketone and triphenylamine as multi-donating groups (Zhijun Ning and He Tian.Triarylamine: a promising core unit for efficient photovoltaic materials, Chem.Commun., 2009 , 5483-5495.)

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