Polymer solar cell and preparation method thereof

Abstract

The invention relates to a polymer solar cell, which includes a transparent electrode, a donor material, an active layer material, a receptor material and a metal electrode, wherein a transparent base body which is covered by ITO (Indium Tin Oxide), FTO (Flouride-doped Tin Oxide), ATO (Arsenic Trioxide), graphene, carbon nanotubes or a conjugated polymer thin film is used by the transparent electrode; a nano composite material of conjugated polymer, a metal nanomaterial and a semiconductor quantum point nano material is adopted as the donor material; the active layer material is a nano composite material of conjugated polymer, graphene, carbon nanotubes or fullerene and derivatives thereof in the presence of a modifier; graphene, carbon nanotubes or fullerene and the derivatives thereof are adopted as the receptor material; and the metal electrode is made of silver paste, aluminum paste, silver aluminum paste or metal paste. The donor material, the active layer material, the receptor material and the metal paste are printed on the transparent electrode by using an ink printing machine in sequence, and are subjected to drying treatment at 50-100 DEG C in sequence to obtain the polymer solar cell. The cell has high utilization rate to sunshine, high carrier mobility, high compatibility of donor and receptor, high photoelectric conversion efficiency, simple and convenient preparation process and capability of realizing large-scale industrial application.

Description

technical field [0001] The invention relates to a polymer solar cell and a preparation method thereof. Background technique [0002] With the aggravation of the global energy crisis and environmental pollution, solar cells that convert clean renewable energy - solar energy into electrical energy - have received great attention from countries all over the world. Among all kinds of solar cells, inorganic semiconductor solar cells occupy most of the current solar cell market due to their high photoelectric conversion efficiency and mature technology. However, inorganic semiconductor solar cells have many disadvantages, such as high cost, high energy consumption, complicated manufacturing process, non-flexibility, heavy weight, and difficulty in large-scale preparation, which limit their large-scale application in many fields. [0003] Polymer solar cells can effectively solve many shortcomings of inorganic semiconductor solar cells, so they have become a hot spot in solar cell...

AI Technical Summary

Problems solved by technology

However, there are still many problems in current polymer solar cells: ① The absorption spectrum does not match the solar spectrum, resulting in low utilization of sunlight; ② The light-induced electron transfer efficiency of the light-absorbing layer is low, and the charge carrier mobility is low, resulting in The charge transfer efficiency is low; ③ The aggregation and phase separation of donors and acceptors affect the separation and transfer of charges, thus affecting the photoelectric conversion efficiency of the battery

Chinese patent CN 101298510B first modifies carbon nanotubes, and then composites with polythiophene to obtain polythiophene / carbon nanotube nanocomposites. However, the pretreatment process of carbon nanotubes is too complicated, and the production energy consumption is high, which is not conducive to industrialization Production

At present, the preparation method of the polymer solar cell has not been reported in the literature