Bulk effect solar cell material and preparation method thereof

A solar cell and body effect technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve problems such as uneven particle distribution, high crystallization temperature, and complex process, and achieve high film quality, low growth temperature, and light absorption. good performance
CN102176472BInactive Publication Date: 2013-04-10EAST CHINA NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
EAST CHINA NORMAL UNIV
Publication Date
2013-04-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a bulk effect solar cell material which comprise a metal electrode, BiFeO3 ferroelectrics and a LaNiO3 / Si substrate, wherein the BiFeO3 ferroelectrics grows vertical to the direction of the LaNiO3 / Si substrate. The invention also provides a preparation method of the bulk effect solar cell material. The method comprises the following steps of: with BiFeO3 as structural material, preparing pure phase BiFeO3 film by using a sol-gel method, spin-coating the obtained BiFeO3 film on the LaNiO3 / Si substrate and carrying out stepped annealing at a high temperature, and finally sputtering electrodes to the BiFeO3 film. The BiFeO3 film disclosed by the invention has uniform and dense surface, good crystalline properties and no impurity phase, and can test photovoltaic effect by using a metal electrode-ferroelectric-buffer layer substrate sandwich structure. The test structure is simple and clear and larger open-circuit voltage can be obtained.
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Description

technical field

[0001] The invention relates to the technical field of optoelectronic materials, semiconductor materials and devices, in particular to a bulk effect solar cell material and a preparation method thereof. Background technique

[0002] With the over-exploitation of non-renewable energy, the energy crisis spreads all over the world, and the development and utilization of new energy is imminent. As the leading renewable energy, solar energy has a very optimistic development prospect. Solar cells are components that directly use solar energy to generate electricity. At present, solar cells that are widely used are mainly made of silicon series. As we all know, the improvement of their conversion efficiency has almost reached the limit. Therefore, the research and development of new materials is the key to the development of the solar cell industry. It has practical significance for better and more efficient use of solar energy.

[0003] Due to its unique self-pola...

Claims

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