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Method of improving photoelectric conversion efficiency of photovoltaic cell module

A photoelectric conversion efficiency and photovoltaic cell technology, applied in the field of solar energy, can solve problems such as the reduction of photoelectric conversion efficiency of photovoltaic cell components, and achieve the effects of improving output photoelectric current and photoelectric conversion efficiency, improving photoelectric conversion efficiency, and reducing heat consumption.

Inactive Publication Date: 2016-08-03
赵骁
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Problems solved by technology

Since the photovoltaic material (take the p-n junction as an example) will form a corresponding induced internal electric field under the action of an external electric field, so as the voltage increases, the current shows a steady and then rapidly decreasing trend, and the photoelectric conversion efficiency of the photovoltaic cell module also follows. decline

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  • Method of improving photoelectric conversion efficiency of photovoltaic cell module
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  • Method of improving photoelectric conversion efficiency of photovoltaic cell module

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[0029] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is for the purpose of illustration only, and in no way limits the invention and its application or usage.

[0030] If light is irradiated on the photovoltaic module and the light is absorbed at the interface layer, photons with sufficient energy can excite electrons from covalent bonds in P-type silicon and N-type silicon, so that electron-hole pairs are generated. The electrons and holes near the interface layer will be separated from each other by the electric field effect of the space charge before recombination. The movement of electrons to the positively charged N region and the movement of holes to the negatively charged P region will generate current between the P region and the N region. The more electron-hole pairs generated by light hitting the interfacial layer, the greater the current flow...

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Abstract

The invention discloses a method of improving the photoelectric conversion efficiency of a photovoltaic cell module. Through applying non-steady bias voltage to two ends of a photovoltaic panel, heat consumption generated due to mutual action between minority carriers and atoms can be reduced, minority carriers excited by a photovoltaic material acceleratively moves to a contact point to generate photo-generated current, the photo-generated current makes a contribution to the output photo-generated current of a solar photovoltaic module, and the output photo-generated current and the photoelectric conversion efficiency of the photovoltaic module are improved.

Description

technical field [0001] The invention relates to the field of solar energy, in particular to a method for improving the photoelectric conversion efficiency of a photovoltaic battery module. Background technique [0002] The technical background related to the present invention will be described below, but these descriptions do not necessarily constitute the prior art of the present invention. [0003] At present, the efficiency improvement of photovoltaic cell modules is mainly achieved through several methods such as new material system, material system optimization, and device optimization, such as doping traditional photovoltaic materials, developing new heterojunction or quantum well photovoltaic material systems, improving However, there are few researches and applications on improving the efficiency of photovoltaic materials through electronic and circuit methods. [0004] figure 1 A schematic diagram of the U-I curve of a typical photovoltaic cell is given, and the U...

Claims

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Application Information

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IPC IPC(8): H01L31/18
CPCH01L31/186Y02E10/50Y02P70/50
Inventor 赵骁张海南
Owner 赵骁
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