Solar battery and manufacturing method thereof

A technology for a solar cell and a manufacturing method, applied in the field of solar cells, can solve the problems of decreased light transmittance of the back electrode, affecting the reflectivity of the reflective layer, and complicated process methods, so as to improve the overall efficiency performance, improve the reflectivity, and reduce the equipment. effect on material cost

Active Publication Date: 2012-12-05
IND TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the case of using such a thick transparent conductive oxide, the light penetration of the back electrode will be significantly reduced, affecting the reflectivity of the reflective layer.
In addition, in order to fabricate the front electrode and the back electrode of the solar cell, two sets of low pressure chemical vapor deposition (LPCVD) vacuum systems must be used to fabricate the two layers of transparent conductive oxide respectively, and the material cost is relatively high. And the process method is more complicated

Method used

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  • Solar battery and manufacturing method thereof
  • Solar battery and manufacturing method thereof
  • Solar battery and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0072] Figure 2A It is a transparent conductive film prepared according to Experimental Example 1. Figure 2B It is an image under an optical microscope of the transparent conductive film prepared according to Experimental Example 1.

[0073] In Experimental Example 1, a 0.2wt% nano-silver organic solution was used to evenly coat the glass substrate, and then the liquid was dried at a low temperature of about 50°C, thereby producing a transparent nano-silver conductive film with a thickness of about 0.5 μm. like Figure 2A As shown, the glass substrate 200 formed with the nano-silver conductive film of Experimental Example 1 is placed on the pattern, and it can be observed that the pattern under the glass substrate 200 can be clearly recognized even through the nano-silver conductive film. The fabricated nano-silver conductive film has high penetration. like Figure 2B As shown, the transparent nano-silver conductive film is observed under an optical microscope. The nano...

experiment example 2

[0079] Figure 3A It is a transparent conductive film prepared according to Experimental Example 2. Figure 3B It is an image under an optical microscope of the transparent conductive film prepared according to Experimental Example 2. Figure 3C It is a graph of the relationship between the transmittance of the transparent conductive film produced according to Experimental Example 2 and the wavelength of light. Figure 3D It is the I-V curve diagram of the transparent conductive film produced in the measurement experiment example 2.

[0080] In Experimental Example 2, 0.8wt% nano-silver organic solution was uniformly coated on the glass substrate, and a transparent nano-silver conductive film was fabricated in a manner similar to that of Experimental Example 1 above, with a thickness of about 0.8 μm. Next, carry out relevant tests as described in Experimental Example 1 to the nano-silver conductive film produced in Experimental Example 2, and the results are shown in Figur...

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Abstract

The present invention discloses a solar battery and a manufacturing method thereof. The solar battery includes a first electrode, a second electrode, a photoelectric conversion layer and a non-conductive reflecting layer, wherein the first electrode, comprising a nano-metal transparent conducting layer which is essentially contacted with the photoelectric conversion layer, is arranged on a transparent substrate, the second electrode is arranged between the transparent substrate and the photoelectric conversion layer which is positioned between the first electrode and the second electrode, andthe non-conductive reflecting layer is arranged on the first electrode.

Description

technical field [0001] The present invention relates to a solar cell, and in particular to a solar cell using nanometer metal as a transparent conductive film and a manufacturing method thereof. Background technique [0002] Solar energy is a clean, non-polluting and inexhaustible energy source. Therefore, when confronted with the pollution and shortage problems faced by fossil energy, how to effectively utilize solar energy has become the focus of the most attention. Among them, since solar cells can directly convert solar energy into electrical energy, they have become the focus of development in the use of solar energy. [0003] Silicon-based solar cells are a common solar cell in the industry. The principle of silicon-based solar cells is to add some impurities to high-purity semiconductor materials (silicon) to make them exhibit different properties. When sunlight irradiates the semiconductor material of the solar cell, the energy provided by the photons may excite the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/042H01L51/42H01L31/18H01L31/20H01L51/48
CPCY02E10/52Y02E10/50Y02E10/549Y02P70/50
Inventor 吴建良刘俊岑张明智吴兴华王裕铭
Owner IND TECH RES INST
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