Thin-film solar cell and method for manufacturing the same

A technology for solar cells and manufacturing methods, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as affecting the open-circuit potential fill factor of solar cells, photoelectric conversion efficiency, weakening electric fields, etc., so as to improve efficiency performance, simplify processes, reduce cost effect

Inactive Publication Date: 2012-07-04
AURIA SOLAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such a diffusion effect will weaken the electric field established by the group V atoms in the photoelectric conversion layer, thereby affecting the open circuit potential (Voc), filled factor and photoelectric conversion efficiency of the solar cell.

Method used

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  • Thin-film solar cell and method for manufacturing the same
  • Thin-film solar cell and method for manufacturing the same
  • Thin-film solar cell and method for manufacturing the same

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Embodiment Construction

[0048]The detailed features and advantages of the present invention are described in detail below in the embodiments, the content of which is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of claims and the accompanying drawings , any person skilled in the art can easily understand the related objects and advantages of the present invention.

[0049] figure 1 It is a flow chart of the steps of the manufacturing method of the thin-film solar cell according to the embodiment of the present invention. This manufacturing method is suitable for forming a front electrode or a back electrode with a graded dopant concentration in the solar cell, thereby maintaining better photoelectricity of the solar cell. conversion efficiency. The manufacture method of the thin-film solar cell proposed by the present invention mainly...

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Abstract

A thin-film solar cell and a method for manufacturing the same are presented, in which the dopant concentration turns low in a sloping way. The solar cell includes a substrate, a first contact region, a photoelectric conversion layer, and a second contact region. The first contact region a photoelectric conversion layer, and a second contact region are disposed on the substrate. At least one of the first contact region and the second contact region contains an N-type dopant, and the concentration of the N-type dopant is decreased gradually in a direction towards the photoelectric conversion layer. Through the thin-film solar cell and the method for manufacturing the same, the conversion efficiency of the solar cell is improved, and the thin-film solar cell and the manufacturing method are capable of being integrated with an existing manufacturing process of a solar cell, thereby simplifying the manufacturing process and reducing the cost.

Description

technical field [0001] The invention relates to a thin-film solar cell and a manufacturing method thereof, in particular to a thin-film solar cell whose electrode has a gradually changing dopant concentration and a manufacturing method thereof. Background technique [0002] Due to the rapid development of industry, the gradual depletion of fossil fuels and the emission of greenhouse gases have attracted increasing global attention, and the stable supply of energy has become a major global issue. Compared with traditional coal-fired, gas-fired or nuclear power generation, solar cells use photoelectric or thermoelectric conversion effects to directly convert solar energy into electrical energy, so there will be no greenhouses such as carbon dioxide, nitrogen oxides, and sulfur oxides. Effect gases and polluting gases, and can be used to reduce dependence on fossil fuels and provide a safe and independent source of electricity. [0003] There are many solar cell technologies k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224H01L31/075H01L31/18
CPCH01L31/18Y02E10/52H01L31/075H01L31/0224H01L31/022466H01L31/1884Y02E10/548
Inventor 林志雄简毓苍张志雄林昆志李岳勋
Owner AURIA SOLAR CO LTD
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