Plasmon enhancement type solar cell with intermediate bands and photoelectric conversion film material of solar cell

A plasmon-enhanced, solar cell technology, applied in nanotechnology, circuits, electrical components, etc. for materials and surface science, which can solve problems such as lack of solar cells, low conversion efficiency, cell stability, and complex processes

Inactive Publication Date: 2012-06-13
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The fundamental reason why solar energy is difficult to be widely used is limited by the low photoelectric conversion efficiency of current devices and the high manufacturing cost
Although the conversion efficiency of thin-film cells such as monocrystalline silicon cells and CIGS is high, there are bottlenecks such as complicated processes, expensive raw materials, or environmental pollution.
Although dye-sensitized solar cells are relatively simple to manufacture, they face the problems of low conversion efficiency and battery stability.
[0005] In summary, the art lacks a solar cell with high conversion efficiency, stable cell and reasonable manufacturing cost.

Method used

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  • Plasmon enhancement type solar cell with intermediate bands and photoelectric conversion film material of solar cell

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preparation example Construction

[0088] The present invention also provides the preparation method of described photoelectric conversion film material, it comprises the following steps:

[0089] i), providing a photoelectric conversion layer with an intermediate energy band;

[0090] ii), building a nano-metal structure layer on the photoelectric conversion layer with intermediate energy band by photolithography or self-assembly method.

[0091] In a specific embodiment, the preparation method of photoelectric conversion thin film material is as follows:

[0092] a), using unequal or non-compensated n-p co-doped TiO 2 Materials to realize functional thin film materials with intermediate energy bands (photoelectric conversion layers with intermediate energy bands);

[0093] b), building nano-metal structures on intermediate energy band materials by photolithography or self-assembly;

[0094] Wherein, in step a), the unequal n-p co-doping method can adopt but not limited to methods such as vapor deposition o...

Embodiment

[0135] Implementation details of the invention will now be described, including exemplary aspects and implementation examples of the invention. see figure 1 As indicated in , the associated numerals and the following description set forth the main features of the exemplary embodiments. Additionally, there is no intention in the legends to depict every feature of actual embodiments or to depict relative dimensions of elements, and the drawings are not drawn to scale.

[0136] The basic concept of manufacturing the described plasmonic enhanced intermediate band solar cells is to sequentially grow figure 1 Materials of construction for each layer shown. That is, epitaxially grow or vapor-deposit the back electrode 2 on the substrate, and then manufacture a complementary thin film, that is, an N-type thin film material (such as TiO 2 or ZnO), P-type intermediate zone film 4 and nano-metal structure 6.

[0137] Appropriate reaction temperature and time are preferred, and approp...

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Abstract

The invention provides a plasmon enhancement type solar cell with intermediate bands. The solar cell comprises a substrate, a back electrode arranged on the substrate, a complementary type film arranged on the back electrode, a photoelectric conversion film material arranged on the complementary type film, an insulating layer and a metal electrode, wherein the photoelectric conversion film material comprises a photoelectric conversion layer with intermediate bands and a nanometal structure layer arranged on the photoelectric conversion layer for assisting in absorbing light. According to the invention, the obtained solar cell and the photoelectric conversion film material forming the solar cell have the advantages of high conversion efficiency, stable cell property and reasonable manufacturing cost.

Description

technical field [0001] The present invention relates to a solar cell and a photoelectric conversion thin film material for the cell, in particular to a plasmon-enhanced solar cell, and more specifically to a plasmon-excited solar cell with intermediate bands. Element-enhanced solar cells. Background technique [0002] Due to the increasing global demand for energy and the improvement of environmental protection awareness, countries around the world have been researching and developing various alternative clean energy sources, among which solar energy has attracted the most attention. Solar energy has the advantages of being inexhaustible and inexhaustible, and it is an ideal clean energy for human beings to solve the problems of energy depletion and environmental pollution. Solar devices using the principle of photoelectric conversion, especially photovoltaic cells, are the main form and carrier of energy utilization. [0003] Since the first development of silicon solar c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0352H01L31/18B82Y30/00B82Y40/00
CPCY02P70/50
Inventor 张振宇曾长淦许小亮崔萍蓝海平
Owner UNIV OF SCI & TECH OF CHINA
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