Semiconductor solar battery based on interface polaron effect and method for preparing semiconductor solar battery

Abstract

The invention discloses a semiconductor solar battery based on an interface polaron effect and a method for preparing the semiconductor solar battery. The semiconductor solar battery has a central symmetry structure which consists of two pieces of conductive glass of the same size and a polaron oxide thin film, wherein the polaron oxide thin film is sandwiched between the two pieces of conductive glass and used for separating the two pieces of conductive glass; a conductive film is arranged on one face of each piece of conductive glass, and the face is adjacent to the polaron oxide thin film; the two pieces of conductive glass are arranged in a staggered mode; the edge of one end of each piece of conductive glass is aligned with the edge of the polaron oxide thin film, and the other end of the conductive glass is protruded on the polaron oxide thin film; the conductive films, protruded on the polaron oxide thin film, of the two pieces of conductive glass are respectively connected with a positive wire and a negative wire of a battery; and the polaron oxide thin film is prepared by grinding polaron oxide, coating the polaron oxide on the conductive glass and then performing heat treatment. A manufacturing process for the semiconductor solar battery is simple. The semiconductor solar battery is applicable to large-scale production and has the advantages of low material cost, high stability, no environmental pollution, simple manufacturing process, high elemental abundance and the like.

Description

technical field [0001] The invention relates to a semiconductor solar cell, in particular to a semiconductor solar cell based on the interface polaron effect and a preparation method thereof. Background technique [0002] There are four common mechanisms for the photovoltaic effect, namely Schottky barrier mechanism, p-n junction mechanism, heterojunction mechanism, and excitonic mechanism. Existing solar cells use one or more of the above-mentioned photovoltaic mechanisms to realize photoelectric conversion. For example, silicon solar cells use the p-n junction mechanism, while organic solar cells mainly use the excitonic mechanism. Semiconductor materials for solar cells, the most common is silicon (including single crystal, polycrystalline, amorphous), followed by multi-component compounds such as gallium arsenide, cadmium sulfide, copper indium selenide, and organic dye molecules, polymers, etc. materials, and oxides such as titanium dioxide used as electrodes. At...

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Problems solved by technology

For example, monocrystalline silicon cells have the highest conversion efficiency and mature technology, but the cost of raw materials is high; amorphous silicon thin-film solar cells have low cost and high conversion efficiency, but low stability; cadmium sulfide thin-film solar cells have high conversion efficiency and are easy to scale up. Large-scale production, but cadmium is highly toxic and will cause serious environmental pollution; copper indium selenium thin film batteries have high conversion efficiency, low price, and simple process, but indium and selenium are low-abundance elements, and the source of materials is problematic; dye sensitive Polymer solar cells are low in price and high in efficiency, but have complex processes and poor stability; polymer solar cells are low in price and simple in process, but low in efficiency, and are still in the research and development stage

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