Solar energy conversion system structure

Abstract

A solar energy conversion system structure is mainly used for the efficient energy conversion of the sunlight, wherein an upper layer is a rare earth doped photon glass material, and a lower layer is a single crystal silicon or polycrystal silicon or non-crystal silicon material; the photon glass material is doped by one or more rare earths; after the sunlight is emitted into the photon glass, one A rare earth ion can excite two or three B rare earth ions respectively into an excited state after absorbing the sunlight in the frequency of two times or three times greater than the energy gap of the silicon material, then the B rare earth ions transmit two or three photons in the frequency around the energy gap, therefore, the number of the photon emitted from the lower surface of the photon glass material is greatly increased, the number of the photon from the photon glass to the silicon material is greatly increased, and the photoelectric conversion efficiency of the overall solar energy conversion system is also greatly improved.

Description

technical field [0001] The invention relates to a photonic glass material used for down-conversion of solar spectrum frequency, which is a high-efficiency and low-cost photovoltaic glass material, involves the use of high-frequency energy of sunlight, and is suitable for assisting photovoltaic systems to efficiently realize photoelectric energy conversion. Background technique [0002] Energy is an important material basis for economic and social development. Since the industrial revolution, the world's energy consumption has increased sharply, fossil energy such as coal, oil, and natural gas has been consumed rapidly, and the ecological environment has continued to deteriorate. In particular, greenhouse gas emissions have led to increasingly severe global climate change, and the sustainable development of human society has been seriously threatened. At present, my country has become the world's largest energy production and consumption country, but the per capita energy con...

AI Technical Summary

Problems solved by technology

[0007] Through some analysis of the type, structure, characteristics, development, etc. of the above-mentioned solar cells, it can be seen that as materials for solar cells, III-V compounds are prepared from rare elements, although solar cells made of them The conversion efficiency is high, but limited by the source of materials and cost, this type of battery will not be able to occupy a dominant position in the future; the research on nanocrystalline solar cells and polymer modified electrode solar cells has just started, and the technology is immature and the conversion efficiency is low. Therefore, these two types of batteries are still in the exploratory stage, and it is difficult to replace silicon-based solar cells in a short time

Images