Laser photovoltaic battery of upside-down mounting structure, and manufacturing method therefor

A technology of laser photovoltaic cell and manufacturing method, applied in photovoltaic power generation, circuits, electrical components and other directions, can solve the problems of increasing series resistance, reducing battery performance, large sheet resistance, etc., reducing series resistance, improving heat dissipation performance, cost reduction effect

Active Publication Date: 2014-08-27
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the resistance is directly proportional to the length and inversely proportional to the cross-sectional area, that is, the longer the distance through which the current passes, the greater the resistance, and the longer the transmission distance of the photogenerated

Method used

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  • Laser photovoltaic battery of upside-down mounting structure, and manufacturing method therefor
  • Laser photovoltaic battery of upside-down mounting structure, and manufacturing method therefor
  • Laser photovoltaic battery of upside-down mounting structure, and manufacturing method therefor

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Example Embodiment

[0040] Taking into account the many shortcomings in the prior art, how to increase the parallel resistance, reduce the series resistance, increase the conversion efficiency of the laser battery, and solve the corresponding production technology is of great significance.

[0041] The embodiment of the application discloses a laser photovoltaic cell with a flip-chip structure. The photovoltaic cell includes a second insulating substrate and an epitaxial layer on the second insulating substrate. The epitaxial layer includes The negative electrode, N-type conductive layer, P / N junction cell, P-type window layer and P-type contact layer on the second insulating substrate.

[0042] Correspondingly, this application also discloses a method for manufacturing a laser photovoltaic cell with a flip-chip structure, including:

[0043] (1) Growing on the first substrate as a sacrificial layer for peeling off the first substrate;

[0044] (2) Growing a P-type contact layer on the above-mentioned sa...

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Abstract

The invention discloses a laser photovoltaic battery of an upside-down mounting structure. The photovoltaic battery comprises a second insulation substrate and an epitaxial layer disposed on the second insulation substrate. The epitaxial layer comprises a negative electrode, an N-type conductive layer, a P/N junction battery, a P-type window layer and a P-type contact layer which are successively formed on the second insulation substrate. The invention further discloses a manufacturing method for the laser photovoltaic battery of the upside-down mounting structure. The laser battery provided by the invention greatly reduces series resistance, improves the heat dissipation performance of the battery, and accordingly enhances the conversion efficiency of the photovoltaic battery. A stripped first substrate can be repeatedly used, thus the cost is reduced.

Description

technical field [0001] The invention belongs to the field of photovoltaic cells, in particular to a laser photovoltaic cell with an inverted structure 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 o...

Claims

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Application Information

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IPC IPC(8): H01L27/142H01L31/0693H01L31/18
CPCY02E10/50Y02E10/544Y02P70/50
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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