Holographic solar photovoltaic battery and manufacturing method thereof

Abstract

The invention provides a photovoltaic battery which comprises one or a plurality of material layers which are of micro-nano holographic optical structures. The micro-nano holographic structures are used as light-pervious layers, so that reflection of incident light on light incident planes is reduced and dependency of the photovoltaic battery on angles of the incident light is reduced. Light can be trapped and also transmitted. Action areas between light and active layer photoelectric conversion materials can be greatly increased on an action layer. A complete reflecting mirror structure is adopted on a back electrode, light transmitted to the back electrode can be reflected back to the photoelectric conversion materials, and meanwhile with surface plasmon polariton resonance effect applied, light intensity can be increased, so that useful effect of the light and the photoelectric conversion materials is increased and improved from one to more angles, and photoelectric conversion efficiency of the photovoltaic battery is increased by a large scale. With the above one or more functional structures adopted, various photovoltaic battery structures can be manufactured and the aim of improving the performance of the photovoltaic battery can be achieved.

Description

technical field [0001] The invention relates to the structure, function, manufacture and application of a novel solar photovoltaic cell. Specifically, it is a solar photovoltaic cell with at least one layer of micro-nano holographic structure and its application. Background technique [0002] Solar photovoltaic cells (photovoltaic cells for short) can convert light energy into electrical energy. Therefore, by converting solar energy into electrical energy, photovoltaic cells can realize the purpose of using solar energy to generate electricity, and have considerable applications in providing electricity for actual people's production and life. When manufacturing a photovoltaic cell, the thickness of the photovoltaic cell is reduced by reducing the use of raw materials, so that the photovoltaic cell is thinned. Thin-film photovoltaic cells are called thin-film photovoltaic cells. Compared with crystalline silicon photovoltaic cells, the materials used in thin-film photovolt...

AI Technical Summary

Problems solved by technology

One of the main reasons for the low conversion efficiency is the low utilization of incident light

The light incident to the photovoltaic cell is affected by: 1. the reflection of the surface light-transmitting layer; 2. the reflection of the active layer; 3. the thickness of the active layer. The battery efficiently absorbs and utilizes

Images