A novel ambient solar energy harvester based on sensitizing dyes

Abstract

The invention relates to a sensitized dye-based novel environmental solar energy acquisition device, and belongs to the technical field of new energy saving. Electrical contact is formed between one surface of a conductive glass layer of a photo anode and one surface of a nanometer porous semiconductor layer of the photo anode, the nanometer porous semiconductor layer is arranged on a lower surface of the conductive glass layer, a sensitized dye layer is arranged on a lower surface of the nanometer porous semiconductor layer, an oxidation-reduction electrolyte layer is arranged on a lower surface of the sensitized dye layer, and a counter electrode is arranged on a lower surface of the oxidization-reduction electrolyte layer. By means of the advantages of high strength and high carrying capability of graphene, a nanometer porous semiconductor film is prepared from the graphene and TiO2 under a certain process condition, and the photoelectric conversion efficiency is improved; and moreover, Pt is substituted by the graphene to fabricate the counter electrode, so that the manufacturing cost of the dye-sensitized nanocrystal solar acquisition device is further reduced, and the stability of the dye-sensitized nanocrystal solar acquisition device is further improved.

Description

technical field [0001] The invention relates to the technical field of new energy and energy saving, in particular to a novel ambient solar energy collector based on sensitizing dyes. Background technique [0002] How to develop and utilize solar energy is one of the effective means to solve current energy problems. At present, solar cells are devices that can better convert solar energy into electrical energy, and the more promising solar cells have two systems. One is a silicon polycrystalline silicon semiconductor solid-state battery module, and the other is a dye-sensitized solar cell containing a liquid electrolyte. At present, the most mature solar cell is a silicon-based solar cell. The efficiency of a monocrystalline silicon solar cell has reached more than 25%, but it has high requirements on the purity of the material, complicated manufacturing process, and high cost, which greatly limits its wide application. application. Another dye-sensitized nanocrystalline ...

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Problems solved by technology

[0008] In order to overcome the problems in the background technology, the present invention proposes a novel ambient solar energy harvester based on sensitizing dyes, which uses graphene and TiO 2 Preparation of nanoporous semiconductors to solve the problem that the photoelectric conversion efficiency of dye-sensitized nanocrystalline solar cells is not greatly improved by the coating process, and the corrosion problem caused by using graphene as a catalyst instead of platinum as a counter electrode

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