Laser etching method and device of film solar cell

A laser etching method and solar cell technology, applied in laser welding equipment, circuits, photovoltaic power generation, etc., can solve problems such as unsatisfactory, solar cells do not have light transmission, etc., and achieve stable products, smooth edges, and flexible focusing Effect

Inactive Publication Date: 2015-08-19
HANS LASER TECH IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the solar cells processed by this method only have the function of battery power generation but not light transmission performance, that is, they cannot meet the needs of building integrated photovoltaic (BIPV) systems.

Method used

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  • Laser etching method and device of film solar cell
  • Laser etching method and device of film solar cell
  • Laser etching method and device of film solar cell

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Embodiment Construction

[0037] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0039] image 3 and Figure 4 Shown is the laser etching method of a kind of thin-...

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Abstract

The invention relates to the technical field of solar cell etching, and discloses a laser etching method and a device of a film solar cell. The method comprises the steps of: (S1) forming the film solar cell, wherein the film solar cell comprises a glass substrate, a front electrode, a semiconductor layer and a back electrode; and (S2) adopting laser with a wavelength of 532 nm to perform the laser etching for the semiconductor layer and the back electrode through the glass substrate and the front electrode. The method can enable the film solar cell to have the cell electricity generation function and the light transmission so as to satisfy the requirements of a photovoltaic building integrated system.

Description

technical field [0001] The present invention relates to the technical field of solar cell etching, and more specifically, to a laser etching method and device for thin-film solar cells. Background technique [0002] With the continuous development of society, the shortage of energy has become the main problem for the development of China and other countries in the world, while the limited resources of fossil energy and the environmental problems caused by development and utilization seriously restrict the sustainable development of economy and society. The development and utilization of renewable energy is very important. Photovoltaic power generation is a technology that utilizes solar energy, a renewable resource. It uses the photovoltaic effect at the semiconductor interface to directly convert light energy into electrical energy. It has the advantages of safety, reliability, no noise, and low pollution. In addition to the characteristics of abundant raw materials, mate...

Claims

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Application Information

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IPC IPC(8): B23K26/362H01L31/20
CPCH01L31/202Y02B10/10Y02E10/50Y02P70/50
Inventor 黄秋香张峻诚谢建陈明金陶尚辉高云峰
Owner HANS LASER TECH IND GRP CO LTD
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