Graphene solar cell and preparing method thereof

A solar cell and graphene technology, applied in the field of solar cells, can solve problems such as poor chemical stability, achieve high light transmittance, improve cell conversion efficiency, and reduce grid line width and thickness.

Active Publication Date: 2014-04-23
ZHONGSHAN DEHUA CHIP TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In practical applications, the chemical stability of ITO is poor, and the light absorpti

Method used

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  • Graphene solar cell and preparing method thereof

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with specific examples.

[0044] see figure 1 and figure 2 As shown, the graphene solar cell described in this embodiment is specifically a rectangular structure, including an antireflection film 1, a multilayer graphene front electrode 2, a single layer graphene grid line 3, an epitaxial sheet 4, and a multilayer graphene The back electrode 5, wherein, the anti-reflection film 1, the single-layer graphene grid line 3, the epitaxial sheet 4, and the multi-layer graphene back electrode 5 are stacked sequentially from top to bottom; the multi-layer graphene front electrode 2 corresponds to Set on the epitaxial sheet 4, and on the same side of the epitaxial sheet 4 as the single-layer graphene grid line 3; the multilayer graphene front electrode 2 surrounds the area formed by the single-layer graphene grid line 3 (specifically is the circular area in the figure), and is connected with it; the multilaye...

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Abstract

The invention discloses a graphene solar cell and a preparing method thereof. The graphene solar cell comprises an antireflection film, a multilayer graphene front surface electrode, a single-layer graphene grid line, an epitaxial piece and a multi-layer graphene back surface electrode; the antireflection film, the single-layer graphene grid line, the epitaxial piece and the multi-layer graphene back surface electrode are sequentially laminated from top to bottom; the multi-layer graphene front surface electrode is correspondingly arranged on the epitaxial piece and is positioned at the same side of the epitaxial piece together with the single-layer graphene grid line; the multi-layer graphene front surface electrode surrounds the area formed by the single-layer graphene grid line and is connected with the single-layer graphene grid line; the multi-layer graphene front surface electrode is provided with metal contact points, and a metal lead is led from each metal contact point. The single-layer graphene is used as the grid line of the solar cell, so the width and thickness of the grid line are greatly reduced, the optical absorption of the grid line is effectively reduced due to the high transmission of light of a graphene material, and the cell conversion efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a graphene solar cell and a preparation method thereof. Background technique [0002] With the development of modern industry, the global energy crisis and air pollution problems have become increasingly prominent. As an ideal renewable energy source, more and more countries have paid attention to solar energy. Carrying out solar cell research and developing the photovoltaic power generation industry will contribute to the sustainable development of national energy. is of great significance. The main problems faced by solar cells are low photoelectric conversion efficiency and low cost performance, which cannot meet the needs of large-scale civilian use. At present, the conversion efficiency of commercial monocrystalline silicon cells is about 16%-20%, and that of polycrystalline silicon cells is about 14%-16%. GaInP / GaAs / Ge triple-junction solar cells with epitaxial growth ...

Claims

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Application Information

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IPC IPC(8): H01L31/0224H01L31/18
CPCH01L31/022425H01L31/022466H01L31/1884Y02E10/50Y02P70/50
Inventor 张露张杨杨翠柏陈丙振万智丁杰王智勇吴步宁
Owner ZHONGSHAN DEHUA CHIP TECH CO LTD
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