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Film solar battery and manufacturing method thereof

A thin-film solar cell and manufacturing method technology, applied in the direction of final product manufacturing, sustainable manufacturing/processing, circuits, etc., can solve problems such as unclear large-scale application prospects, and achieve easy large-scale production and application, good and stable performance, and structure. and the effect of simple craftsmanship

Active Publication Date: 2010-02-10
SHENZHEN DANBANG INVESTMENT GROUP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Copper indium gallium selenide thin film solar cells have the advantages of environmental friendliness, low cost and excellent performance, but due to the use of rare elements such as indium and gallium, the prospect of large-scale application is unclear

Method used

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  • Film solar battery and manufacturing method thereof

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Embodiment Construction

[0022] Such as figure 1 As shown, the thin film solar cell of the present invention is composed of a glass substrate 1, a back electrode 2, a light absorbing layer 3, a buffer layer 4, a window layer 5, and a top electrode 6 from bottom to top.

[0023] The back electrode of the battery is a molybdenum-copper alloy film with a thickness of 0.3-3 μm, and the copper content is 2-40%; the light-absorbing layer is a copper-silicon-tin-sulfur (CSTS) film with a thickness of 0.5-5 μm; The buffer layer is a zinc sulfide (ZnS) film with a thickness of 20-100 nm; the window layer is a zinc-aluminum oxide (ZAO) film with a thickness of 0.2-5 μm; the top electrode is a nickel-aluminum alloy film , with a thickness of 0.2-5 μm and an aluminum content of 1-100%.

[0024] The manufacture method of thin-film solar cell of the present invention carries out according to the following steps:

[0025] (1) Manufacture of the back electrode: use molybdenum-copper alloy target DC magnetron sputte...

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Abstract

The invention discloses a film solar battery and a manufacturing method thereof. The film solar battery sequentially comprises a glass substrate, a molybdenum-copper back electrode, a copper-silicon-tin-sulfur (CSTS) photoabsorption layer, a zinc sulfide (ZnS) buffer layer, a zinc aluminum oxide (ZAO) window layer and a nickel-aluminum top electrode, wherein, in the photoabsorption layer, a copper-silicon-tin-sulfur film of 0.5-5mu m is settled on the back electrode by adopting a sputtering vulcanization method. The invention avoids the use of rare noble metal and toxic elements and has the advantages of simple structure and manufacturing technique, high photoelectric conversion efficiency, favorable stability and the like.

Description

technical field [0001] The invention relates to the structural design and manufacturing method of a thin-film solar cell using a novel low-cost, environment-friendly thin film as an absorbing layer. Background technique [0002] Solar energy is an inexhaustible and inexhaustible renewable energy source. Among the various utilization methods of solar energy, solar cell power generation is the fastest growing, most dynamic and most eye-catching field, and it is expected to become an effective way to solve the increasingly serious energy crisis and environmental pollution problems. The solar cell industry has entered a stage of rapid development since the second half of the 1990s. The average annual growth rate of solar cells in the last 10 years was 41.3%, and the average annual growth rate in the last 5 years was 49.5%. Although the development speed is so fast, the proportion of solar cell power generation in the entire social energy structure is still very small, less than...

Claims

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Application Information

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IPC IPC(8): H01L31/042H01L31/0264H01L31/18
CPCY02E10/50Y02P70/50
Inventor 刘萍赖延清
Owner SHENZHEN DANBANG INVESTMENT GROUP
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