Novel light condensation and light splitting integration system applied to high-efficiency solar cell

Abstract

The invention relates to a novel light condensation and light splitting integration system applied to a high-efficiency solar cell. The novel light condensation and light splitting integration system is composed of a light condensation system, a light splitting system, and a photovoltaic cell. The light condensation system includes a low-power wide-angle light condensation element; the light splitting system consists of a spectral decomposition element a and a spectral decomposition element b; and the photovoltaic cell includes a sub cell a, a sub cell b, and a sub cell c. The spectral decomposition element a and the spectral decomposition element b of the light splitting system are dichroscopes. All components are packaged into the sealed space; the sub cells are respectively fixed at the bottom or side walls; the dichroscopes are fixed at the optical path in a suspended mode; and the low-power wide-angle light condensation element is fixed at the top of the sealed space. Therefore, the selection space of the high-efficiency photovoltaic cell material, the device structure, and the manufacturing process are expanded; the output power of the unit area can be optimized and the condensation magnification can be effectively reduced; and the heat radiation apparatus in the conventional light condensation photovoltaic system is not required.

Description

technical field [0001] The invention relates to a novel light-gathering and light-splitting integrated system applied in high-efficiency solar cells, belonging to the technical field of semiconductors. Background technique [0002] With the development of modern industry, the global energy crisis and air pollution problems have become increasingly prominent. As an ideal renewable energy source, more and more countries have paid attention to solar energy. Carrying out solar cell research and developing the photovoltaic power generation industry will contribute to the sustainable development of national energy. is of great significance. At present, the main problems faced by solar cells are low photoelectric conversion efficiency and low cost performance, which cannot meet the needs of large-scale civilian use. Among commercial solar cells, monocrystalline silicon and polycrystalline silicon cells account for about 90% of the market share. The conversion efficiency of commer...

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Problems solved by technology

Among them, the necessary heat dissipation equipment and sun tracking equipment in the concentrating system increase the difficulty of photovoltaic system production and increase the cost of system integration; the current matching and lattice Problems such as matching, tunnel junction, and series resistance also limit the selection range of photovoltaic materials to a large extent, making it difficult to further improve the conversion efficiency of photovoltaic systems

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