Inorganic-organic heterojunction all solid solar battery

Abstract

The invention provides an inorganic-organic heterojunction all solid solar battery, comprising a substrate, a conductive oxide layer, a nanocrystalline semiconductor layer, a photosensitizer, a hole transport layer, a counter electrode and a package back plate, wherein the substrate has the characteristic of photopermeability; the conductive oxide layer is arranged on the substrate; the nanocrystalline semiconductor layer is arranged on the conductive oxide layer; the photosensitizer is coated on the nanocrystalline semiconductor layer; the hole transport layer is soaked in the nanocrystalline semiconductor layer; and the counter electrode is arranged on the hole transport layer. According to the inorganic-organic heterojunction all solid solar battery, the transparent conductive oxide layer is etched into a first transparent conductive oxide layer and a second transparent conductive oxide layer, the counter electrode is electrically connected with the first transparent conductive oxide layer by a conducting wire, and an inorganic semiconductor is taken as the photosensitizer, so that the absorption spectrum of the inorganic-organic heterojunction all solid solar battery can be expanded, an all solid structure can be realized, the manufacture cost of the battery can be reduced, and the battery is simple in manufacture and package technology, thereby being applicable to the large-area coating and the industrialized production.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to an inorganic-organic heterojunction all-solid-state solar cell. Background technique [0002] In recent years, dye-sensitized solar cells, as an emerging energy source, have attracted more and more attention from scientific research institutions and the energy industry. After nearly two decades of research, dye-sensitized solar cells have made great progress. However, the traditional dye-sensitized solar cells still have the following defects: (1) The traditional dye-sensitized solar cells have low effective utilization of the solar spectrum. Traditional dye-sensitized cells usually use ruthenium-based dyes as photosensitizers, and their spectral absorption range is narrow, limited to the visible light range of 400-750nm. That is, the near-infrared light, which accounts for about 48% of the solar spectrum, cannot be effectively used, which in turn affects the improvement of...

AI Technical Summary

Problems solved by technology

[0005] The present invention is aimed at the traditional dye-sensitized solar cells with low photoelectric conversion efficiency, complicated process and high manufacturing cost, and the traditional inorganic-organic heterojunction thin-film solar cells have limited reserves of elements involved, high toxicity, and unsuitable To provide an inorganic-organic heterojunction all-solid-state solar cell due to defects such as widespread promotion

Images