Photovoltaic conversion structure, solar battery with photovoltaic conversion structure and manufacturing method of photovoltaic conversion structure
A solar cell and photoelectric conversion technology, applied in photovoltaic power generation, final product manufacturing, sustainable manufacturing/processing, etc., can solve problems such as reducing short-circuit current density of solar cells, rough surface of nanostructures, etc.
Inactive Publication Date: 2014-04-16
AU OPTRONICS CORP
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However, because the surface of the formed nanostructure is too rough, the carriers generated by the solar cell have a high recombination rate, which will reduce the short-circuit current density (Jsc) and open-circuit voltage (V) of the solar cell.
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[0053] A number of implementations of the present invention will be disclosed below with the accompanying drawings. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some known and commonly used structures and elements will be shown in a simple and schematic manner in the drawings.
[0054] Figure 1A to Figure 1F It is a sectional view of the manufacturing process of the photoelectric conversion structure according to an embodiment of the present invention. Please refer to Figure 1A . Firstly, a substrate 110 is provided, and the substrate 110 has a first surface 102 and a second surface 104 opposite to each other. The material of the substrate 110 is a semiconduct...
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The invention discloses a photovoltaic conversion structure, a solar battery with the photovoltaic conversion structure and a manufacturing method of the photovoltaic conversion structure. The photovoltaic conversion structure comprises a substrate, a first semiconductor structure and a second semiconductor structure, wherein the substrate is provided with a first surface and a second surface which are opposite to each other, the first surface is provided with a plurality of micron structures and a plurality of nano-structures, the nano-structures are distributed on the surfaces of the micron structures, the height of each nano-structure is 500-900 nanometers, the first semiconductor structure is arranged on the first surface of the substrate, and the second semiconductor structure is arranged on the second surface of the substrate. According to the photovoltaic conversion structure disclosed by the invention, as the nano-structures are formed on the micron structures firstly, the first surface can have the antireflection effect; further, as the nano-structures are further etched after being formed, the roughness of the surface of each nano-structure can be lowered, and the probability that a carrier is compounded on the surface of each nano-structure is reduced.
Description
technical field [0001] The invention relates to a photoelectric conversion structure, a solar cell using the same and a manufacturing method thereof. Background technique [0002] With the advancement of science and technology, the human demand for energy is also increasing. In view of the fact that limited oil resources are gradually unable to meet the large energy needs of mankind, the industry and scientists have invested in the research and development of new energy sources, and solar energy is one of the new energy sources that the public wants to develop. [0003] Solar cells absorb sunlight and convert the light energy of sunlight into electrical energy. In order to increase the extraction of sunlight, generally speaking, a plurality of micro and / or nanostructures are formed on the light-incident surface of the solar cell to destroy the reflection of the light-incident surface of the solar cell. However, because the surface of the formed nanostructure is too rough, ...
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IPC IPC(8): H01L31/0236H01L31/20
CPCY02E10/50H01L31/02168H01L31/02363H01L31/03529H01L31/0747H01L31/1804Y02E10/547Y02E10/548Y02P70/50
Inventor 黄明义杨伯川何志浩王新平林姿吟
Owner AU OPTRONICS CORP