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GaAs laser photovoltaic cell with output voltage being 7V and making method thereof

A laser photovoltaic cell and output voltage technology, applied in photovoltaic power generation, circuits, electrical components, etc., can solve the problem of reducing the photoelectric conversion efficiency of the battery, and achieve the effect of high-efficiency absorption

Inactive Publication Date: 2014-09-10
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Application Information

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Problems solved by technology

In addition, the light energy density emitted from the optical fiber is in a Gaussian distribution or close to a Gaussian distribution, resulting in the strongest energy of the light incident on the center of the battery, so figure 1 The conventional laser cell structure will reduce the photoelectric conversion efficiency of the cell

Method used

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  • GaAs laser photovoltaic cell with output voltage being 7V and making method thereof
  • GaAs laser photovoltaic cell with output voltage being 7V and making method thereof
  • GaAs laser photovoltaic cell with output voltage being 7V and making method thereof

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Embodiment Construction

[0029] The embodiment of the present application discloses a GaAs laser photovoltaic cell with an output voltage of 7V, the laser photovoltaic cell includes an isolation groove, and the isolation groove separates the photovoltaic cell into seven battery units, including a first battery unit, and six second battery units surrounding the first battery unit, and the battery units are connected in series.

[0030] Correspondingly, the embodiment of the present application also discloses a method for manufacturing a GaAs laser photovoltaic cell with an output voltage of 7V, including:

[0031] (1) Grow an N-type conductive layer on a semi-insulating substrate;

[0032] (2) growing a barrier layer on the above-mentioned N-type conductive layer;

[0033] (3) An N-type absorber layer and a P-type absorber layer are sequentially grown on the above barrier layer to form a P / N junction cell;

[0034] (4) growing a P-type window layer on the above-mentioned P / N junction cell;

[0035] ...

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Abstract

The invention discloses a GaAs laser photovoltaic cell with the output voltage being 7V. The laser photovoltaic cell comprises isolating grooves which divide the laser photovoltaic cell into seven cell units. The seven cell units include a first cell unit and six second cell units arranged around the first cell unit, and the cell units are connected in series. According to the laser photovoltaic cell, a circular cell accounting for one seventh of the total area of the laser photovoltaic cell is arranged in the middle of the laser photovoltaic cell, the area of isolating grooves in the middle of commonly-used laser cells is reduced, absorption of light with high energy density in the center of light spots can be greatly increased, and the photoelectric conversion efficiency of the cell is improved. The GaAs laser photovoltaic cell can be widely used as an efficient laser photovoltaic cell.

Description

technical field [0001] The invention relates to a laser photovoltaic cell, in particular to a GaAs laser photovoltaic cell with an output voltage of 7V and a manufacturing method thereof. Background technique [0002] The laser energy supply system is an innovative energy transfer system. With this system, the light emitted by the laser source is transmitted to the laser photovoltaic cell through the optical fiber, which can provide a stable power output. The conversion of light into electricity through optical fiber has more advantages than traditional metal wire and coaxial cable power transmission technology, and can be applied in radio communication, industry where electromagnetic interference needs to be eliminated or electronic devices need to be isolated from the surrounding environment. There are important applications in the directions of sensors, national defense, aviation, medicine, and energy. The working principle of laser photovoltaic cells is similar to that ...

Claims

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Application Information

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IPC IPC(8): H01L31/046H01L31/0693H01L31/18
CPCY02E10/50H01L31/042H01L31/0693H01L31/1844Y02E10/544Y02P70/50
Inventor 赵春雨董建荣于淑珍赵勇明李奎龙孙玉润曾徐路杨辉
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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