Cd Te (cadmium telluride) thin-film solar cell system based on stone outer wall

Abstract

The invention discloses a CdTe thin-film solar cell system based on stone outer walls. The system comprises stone outer wall panels and is characterized in that the outer surfaces of the stone outer wall panels are covered with CdTe thin-film solar cells, and viscose layers are used for coating the place between the CdTe thin-film solar cells and the outer surfaces of the stone outer wall panels. The system is reasonable in whole designed structure and ingenious in conception, the CdTe thin-film solar cells are combined with the insulation stones into a whole, and a new-energy environment-friendly stone is formed and can be used singly or assembled into an outer wall vertical plane of a building. The CdTe thin-film solar cells has a high light absorption rate, the absorption coefficient reaches 104 cm <-1> or higher within the visible light range, and 95% of photons can be absorbed in an absorbing layer with the thickness of 1 mu m. Besides, during actual application, light energy conversion is achieved by the outer wall of a huge building, indoor temperature of the building is effectively reduced in midsummer, and energy conservation and environmental protection are realized; and the CdTe thin-film solar cell system based on the stone outer walls has a good practical effect and is easy to popularize and apply.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic applications, in particular to a CdTe thin-film solar cell system based on a stone exterior wall, and in particular to a connection structure between a stone exterior wall and a CdTe thin-film solar cell. Background technique [0002] Cadmium telluride (CdTe) thin film solar cell is a thin film solar cell based on the heterojunction of p-type CdTe and n-type Cd. [0003] CdTe has many advantages such as strong light absorption ability, good power generation stability, high conversion efficiency, long daytime power generation time, high power generation and short energy recovery cycle, and its performance is superior to traditional crystalline silicon solar cells. [0004] CdTe thin-film solar cells have been localized at present, with low production cost and good low-light performance. The photoelectric conversion efficiency ranks first among all kinds of thin-film solar cells (the high...

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Problems solved by technology

[0007] The object of the present invention is to provide a CdTe thin-film solar cell system based on stone exterior walls, which combines stone exterior wall panels and CdTe thin-film solar cells through structural adhesives, so that traditional stone building exterior walls have the ability to generate green energy Function, overcome the defect of single function of traditional stone

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