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A technology to improve the conversion efficiency of solar photovoltaic cells

A photovoltaic cell, conversion efficiency technology, applied in the direction of photovoltaic power generation, circuits, electrical components, etc., can solve the problem that the "dead layer" area cannot be completely eliminated

Inactive Publication Date: 2011-11-30
石郧熙
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Problems solved by technology

But none of these techniques can completely eliminate the existence of the "dead layer" region
[0005] The silicon solar photovoltaic cell made of P-type semiconductor material (silicon) as the substrate avoids the influence of the "dead layer" area in the solar photovoltaic cell of the P-N junction (P on N), and improves the conversion efficiency of the solar photovoltaic cell , but the effect of interfacial recombination still exists

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  • A technology to improve the conversion efficiency of solar photovoltaic cells
  • A technology to improve the conversion efficiency of solar photovoltaic cells
  • A technology to improve the conversion efficiency of solar photovoltaic cells

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Embodiment Construction

[0012] Attached below figure 2 , a schematic diagram of a P-N junction (P on N) solar photovoltaic cell of Si semiconductor material, specifically illustrating an embodiment of the present invention. The examples are only for illustrating the present invention, and should not be construed as limiting the scope and spirit of the present invention.

[0013] Such as figure 2 :

[0014] Embodiment: 11 and 15 are output electrodes of solar photovoltaic cells, 12 is dense and pinhole-free SiO 2 Transparent insulating dielectric mask mask layer, 13 and 14 are the P-N junction of Si semiconductor. In SiO 2 On the mask layer 12 of the transparent insulating dielectric mask, a transparent conductive thin film layer 21 of indium tin oxide (ITO) and a contact electrode 22 of the transparent conductive thin film layer are deposited. The transparent conductive film layer 21 and SiO 2 The thickness of the transparent insulating dielectric mask layer 12 should be adjusted so as to mee...

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Abstract

The invention belongs to the technical field of solar photovoltaic cells, and relates to a technology for improving the conversion efficiency of solar photovoltaic cells. A transparent conductive film layer is added to the front surface of the solar photovoltaic cell, and a voltage is applied to the transparent conductive film layer to work as a solar photovoltaic cell. The auxiliary voltage can eliminate the existence of the "dead layer" region and reduce the interfacial recombination of photogenerated carriers, increase the photocurrent output by the solar photovoltaic cell, and improve the conversion efficiency of the solar photovoltaic cell. In particular, this technology can effectively improve the photoelectric conversion efficiency of solar photovoltaic cells based on N-type silicon series substrates.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaic cells, and relates to a technology for improving the conversion efficiency of solar photovoltaic cells. A transparent conductive film layer is added to the front surface of the solar photovoltaic cell, and a voltage is applied to the transparent conductive film layer to work as a solar photovoltaic cell. Method of Auxiliary Voltage to Improve Solar Photovoltaic Cell Conversion Efficiency. In particular, this technology can effectively improve the photoelectric conversion efficiency of solar photovoltaic cells based on N-type silicon series substrates. Background technique: [0002] Solar photovoltaic cells are one of the two ways of utilizing solar energy, including silicon solar photovoltaic cells, solar photovoltaic cells of III-V groups, and semiconductor compound materials such as cadmium sulfide, and organic polymer solar photovoltaic cells. Solar photovoltaic cells can also be di...

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Application Information

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IPC IPC(8): H01L31/18H01L31/042H01L31/0224
CPCY02E10/50Y02P70/50
Inventor 石郧熙
Owner 石郧熙
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