Flexible CIGS thin-film solar cell connecting method
A solar cell and connection method technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems affecting the adhesion and electrical properties of the film layer, reduce the adhesion of dust and water vapor, improve adhesion and electrical properties, The effect of reducing contact
Inactive Publication Date: 2015-07-08
山东禹城汉能薄膜太阳能有限公司
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Problems solved by technology
This inline process adopts the method of coating once and scoring once. The battery is switched many times in vacuum and atmospheric environment, and dust and water vapor will adhere to the surface of the film layer, which will affect the adhesion and electrical properties of the film layer.
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[0028] Attached below figure 1 to attach Figure 5 The present invention will be further described.
[0029] The connection method of flexible CIGS thin film solar cell comprises the steps: a) as attached figure 1 As shown, the back electrode MO layer 2, absorption layer CIGS 3, buffer layer CDS 4, intrinsic zinc oxide layer i-ZnO 5 and transparent conductive film layer AZO 6 are sequentially plated on the base substrate 1 from bottom to top. b) As attached figure 2 As shown, several P0 channels 7 are drawn on the battery, and the P0 channels are drawn to the upper surface of the back electrode MO layer 2, and the absorption layer CIGS 3, buffer layer CDS 4, intrinsic zinc oxide layer i-ZnO 5 and The transparent conductive film layer AZO 6 is completely etched to completely separate the rear electrodes between the batteries. c) as attached image 3 As shown, the back electrode MO layer 2 is carved in the P0 channel to form a P1 channel 8, and the back electrode MO layer ...
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A flexible CIGS thin-film solar cell connecting method includes the following steps that a, a substrate is sequentially plated with a back electrode MO layer, an absorbing layer CIGS, a buffering layer CDS, an intrinsic zinc oxide i-ZnO layer and a transparent conducting film layer AZO from top to bottom; b, a cell is engraved with multiple P0 channels; c, the back electrode MO layer is engraved in the P0 channels to form P1 channels, and therefore the cell is divided into multiple independent subcells; d, the P0 channels and the P1 channels are internally coated with insulation paste layers; e, the portions, located on the insulation paste layers, in the P0 channels are covered with conducting paste layers. The flexible CIGS thin-film solar cell is divided into the subcells through the insulation paste layers, the subcells are electrically connected through the conducting paste layers and the back electrode layer in series, it is effectively avoided that during traditional separating ruling, engraving is needed after different materials are deposited on different layers, the production efficiency is improved, contact between the cell and the atmospheric environment is effectively reduced, adhesion of dust and steam is reduced, and the adhesion force and electric performance of all film layers are improved.
Description
technical field [0001] The invention belongs to the field of thin-film solar cell processing, and in particular relates to a connection method for flexible CIGS thin-film solar cells. Background technique [0002] CIGS (copper indium gallium selenide) thin-film solar cells have low cost, stable performance, good low-light performance, strong radiation resistance, and photoelectric conversion efficiency is currently the top among all kinds of thin-film solar cells. It is easy to combine with buildings and is suitable for large areas. Use and other advantages, has been hailed as "the very promising thin film solar cell in the next era". In particular, CIGS thin-film solar cells represented by flexible substrates also have the characteristics of light weight, bendability, and high mass-to-power ratio, making flexible CIGS solar cells not only widely used in industrial fields such as ground power stations and distributed roof power generation. It has more potential applications...
Claims
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IPC IPC(8): H01L31/18
CPCH01L31/188Y02E10/50Y02P70/50
Inventor 邵传兵
Owner 山东禹城汉能薄膜太阳能有限公司