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Thin-film solar cell and its production method

A technology of solar cells and thin films, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low performance and simple structure, and achieve the effect of improving work performance

Inactive Publication Date: 2009-04-08
上海拓引数码技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional thin-film batteries do not have additional multi-layer functional layers behind the back electrode, and the structure is simple but the performance is low

Method used

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  • Thin-film solar cell and its production method
  • Thin-film solar cell and its production method

Examples

Experimental program
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Effect test

Embodiment 1

[0039] First, on a glass substrate 1 with an area of ​​1.1×1.4m and a thickness of 3mm, a tin dioxide thin film with a thickness of about 700nm is made by chemical vapor deposition as a transparent conductive front electrode 2, and a semiconductor layer 3, which is sputtered by magnetron Methods The back electrode 4 zinc oxide film and the functional layer 5 aluminum dioxide film were fabricated to improve the insulation performance. And before the functional layer 5 is plated, a laser etching process is used to achieve such Figure 4 The functional structure shown above is the traditional process of battery production.

[0040] Wherein the semiconductor layer 3 adopts an amorphous photoelectric change structure.

[0041] Next, the edge grinding process is completed, and the thin film structure laminated on the substrate 1 is ground to a width of 8 mm, and the lead wires of the front and rear electrodes are drawn out.

[0042] Next, evenly coat and mix the uncured adhesive l...

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Abstract

The invention discloses a thin film solar cell and a preparation method thereof. The thin film solar cell sequentially comprises a substrate, a front electrode, a semiconductor layer, a back electrode, an adhesive layer and a back sheet. The adhesive layer is made of epoxy resin; the back sheet is made of glass fiber reinforced plastic or organic glass. The solar cell and the preparation method can effectively reduce the cost of the adhesive layer and the back sheet, and can also add a multifunctional material layer so as to supplement the performances (such as water resistance, insulativity and the like) during a packaging period and to improve the packaging performance.

Description

technical field [0001] The invention relates to a solar battery material and a manufacturing method thereof. Background technique [0002] The general structure of thin-film solar cells is as follows: figure 1 As shown, 8 is a thin-film solar cell module, most of which use hot melt adhesive (such as EVA) as the adhesive layer 6', and TPT or PVB as the back sheet 7'. And after the battery 9 is laminated on the back plate 7' (sequentially the front electrode, the semiconductor layer, the back electrode), there are no other steps before its packaging. [0003] The cost of hot melt adhesive and TPT or PVB used in traditional packaging methods is relatively high. The production method using hot melt adhesive requires heating, vacuuming, and lamination steps, and the energy consumption is relatively high. The traditional thin-film battery does not have the addition of multiple functional layers behind the back electrode, and has a simple structure but low performance. Content...

Claims

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Application Information

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IPC IPC(8): H01L31/048H01L31/0203H01L31/18
CPCY02E10/50Y02P70/50
Inventor 王鸿陈微施松林夏芃刘古岩
Owner 上海拓引数码技术有限公司
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