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Semiconductor substrate

A semiconductor and substrate technology, which is applied in the field of semiconductor substrates of solar cells, can solve the problems of being affected by water vapor, the surface of the doped layer being oxidized, and affecting the conversion efficiency, etc., so as to achieve the effect of improving the conversion efficiency.

Inactive Publication Date: 2016-12-07
NEO SOLAR POWER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the process of connecting the processes, the surface of the doped layer will inevitably be oxidized or affected by moisture due to exposure to the atmosphere, which will affect the subsequent conversion efficiency.

Method used

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  • Semiconductor substrate
  • Semiconductor substrate
  • Semiconductor substrate

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Embodiment Construction

[0026] In the drawings of the present invention, for the convenience of display and description, the proportions and textures of the various structures may not match the proportions and textures of the actual structures, which are only used for reference and not intended to limit the present invention.

[0027] figure 1 It is a side sectional view of the first embodiment of the present invention. see figure 1 , a semiconductor substrate 100 is disclosed. In the first embodiment, the semiconductor substrate 100 includes a semiconductor body 110 , a first buffer layer 120 , a first amorphous silicon layer 140 , a second buffer layer 130 , a second amorphous silicon layer 150 and a first protection layer 160 .

[0028] The semiconductor body 110 has a first surface 111 and a second surface 112 opposite to the first surface 111 . Here, the first surface 111 and the second surface 112 of the semiconductor body 110 can be roughened to increase the amount of light incident on the ...

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Abstract

A semiconductor substrate is provided in the present invention, including a semiconductor body, a first buffer layer, a first amorphous silicon layer, a second buffer layer, a second amorphous silicon layer and a first protective layer. The semiconductor body has a first surface and a second surface relative to the first surface. The first buffer layer is disposed on the first surface of the semiconductor body. The first amorphous silicon layer doped with a first type dopant is disposed on the first buffer layer. The second buffer layer is disposed on the second surface of the semiconductor body. The second amorphous silicon layer doped with a second type dopant is disposed on the second buffer layer. The protective layer is disposed on the first amorphous silicon layer.

Description

technical field [0001] The invention relates to a semiconductor substrate, in particular to a semiconductor substrate applied to solar cells. Background technique [0002] With the development of technology, the demand for energy is increasing day by day. However, the energy contained in the earth is limited, so all countries are competing to devote themselves to the development of alternative energy sources. Among them, solar power generation that meets environmental demands is the most active. [0003] A solar cell is a photovoltaic element that converts sunlight energy into electricity. At present, the simplest solar cell structure can only be composed of a P-type semiconductor layer and an N-type semiconductor layer forming a PN junction with each other. When the solar cell is irradiated with sunlight, the valence band electrons in the semiconductor layer can be excited by the energy of sunlight to form excited electron-hole pairs, and the excited electrons will be af...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0392
CPCY02E10/50Y02P70/50
Inventor 赵建昌
Owner NEO SOLAR POWER CORP