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Thin film solar cell assembly and preparation method thereof

A solar cell and thin-film technology, applied in electrical components, electro-solid devices, circuits, etc., can solve problems such as voltage mismatch between upper and lower photoelectric conversion units, increased internal consumption of battery components, and reduced conversion efficiency, so as to improve conversion efficiency and achieve The effect of absorbing and reducing the output voltage

Active Publication Date: 2014-04-09
紫石能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the existing thin-film solar cell assembly is composed of a series of battery modules composed of a plurality of photoelectric conversion units connected in parallel up and down, resulting in a voltage mismatch between the upper and lower photoelectric conversion units, increasing the internal friction of the battery assembly, and increasing the conversion efficiency. the reduction

Method used

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  • Thin film solar cell assembly and preparation method thereof

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preparation example Construction

[0029] The steps of preparing thin-film solar cell module of the present invention are:

[0030] Step S1: Depositing the first unit cell on the substrate, specifically:

[0031]Step S101: Depositing the first electrode film layer of the first unit cell on the substrate;

[0032] Step S102: Scribing and isolating the first electrode film layer of the first unit cell to obtain the first electrode film layer isolation channels of a plurality of first unit cells running through the first electrode film layer;

[0033] Step S103: Deposit the photoelectric conversion film layer of the first unit cell on the first electrode film layer of the first unit cell, and simultaneously deposit the photoelectric conversion film layer of the first unit cell on the first electrode film layer of the first unit cell An electrode film layer isolating the trench;

[0034] Step S104: Scribing and isolating the photoelectric conversion film layer of the first unit cell to obtain isolation channels f...

Embodiment 1

[0049] In this embodiment, the first electrode film layer is the front electrode film layer, the second electrode film layer is the back electrode film layer, the first electrode film layer isolation channel is the front electrode film layer isolation channel, and the second electrode film layer isolation channel is the front electrode film layer isolation channel. The channel is an isolation channel of the back electrode film layer. The first sub-electrode film layer is a sub-front electrode film layer, and the second sub-electrode film layer is a sub-back electrode film layer.

[0050] Such as figure 1 Shown is a schematic structural view of Embodiment 1 of the present invention.

[0051] The thin-film solar cell assembly of this embodiment includes a substrate 1 arranged in sequence from the light-receiving surface to the backlight surface, a first unit cell deposited on the substrate 1, a second unit cell disposed on the first unit cell, and an insulating film layer. 5. ...

Embodiment 2

[0078] In this embodiment, the first electrode film layer is the front electrode film layer, the second electrode film layer is the back electrode film layer, the first electrode film layer isolation channel is the front electrode film layer isolation channel, and the second electrode film layer isolation channel is the front electrode film layer isolation channel. The channel is an isolation channel of the back electrode film layer. The first sub-electrode film layer is a sub-front electrode film layer, and the second sub-electrode film layer is a sub-back electrode film layer.

[0079] Such as figure 2 Shown is a schematic structural view of Embodiment 2 of the present invention. The structure of embodiment 2 is the same as that of embodiment 1, and each unit cell is also obtained by three times of deposition and three times of scribing, and the specific preparation method is as follows:

[0080] Step S101: Depositing a transparent front electrode film layer 2 of the firs...

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Abstract

The invention discloses a thin film solar cell assembly comprising a substrate, a first unit cell deposited on the substrate and a second unit cell arranged on the first unit cell. The thin film solar cell assembly further comprises an insulation film layer arranged between the first unit cell and the second unit cell and used for enabling the first unit cell and the second unit cell to be insulated, a first isolation channel and a second isolation channel which are arranged at the two sides of the edge of the insulation film layer respectively and are used for enabling the first unit cell and the second unit cell to be connected in parallel. The invention also discloses a preparation method of the thin film solar cell assembly. Through the design of the invention, a high-efficiency film solar cell can be obtained.

Description

technical field [0001] The invention relates to the field of thin-film solar cells, in particular to a thin-film solar cell component and a preparation method thereof. Background technique [0002] Thin-film solar cells have developed rapidly in recent years due to the advantages of good high-temperature effect, good low-light effect, and relatively low cost. However, compared with transistor solar cells, the conversion efficiency of thin-film solar cells is low, which hinders its large-scale development and application. In order to improve the conversion efficiency of thin-film solar cells, people have researched and developed double-junction, triple-junction and other multi-junction thin-film solar cells Batteries, such as amorphous silicon / microcrystalline silicon double junction cells, amorphous silicon / amorphous silicon germanium double junction cells, copper indium gallium selenium double junction cells, amorphous silicon / amorphous silicon germanium / amorphous silicon g...

Claims

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Application Information

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IPC IPC(8): H01L25/04H01L31/0224H01L31/18
CPCY02E10/542Y02P70/50
Inventor 李宏李松林冯志慧薛颖熊宇迪张英贾海军丁建
Owner 紫石能源有限公司
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