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An Organic Solar Cell Using Core-Shell Nanoparticles to Improve Conversion Efficiency

An organic solar cell and nanoparticle technology, applied in the field of solar cells, can solve the problems of low light absorption efficiency and low photoelectric conversion efficiency, and achieve the effects of improving photoelectric conversion efficiency, improving light absorption efficiency, and enhancing scattering.

Inactive Publication Date: 2011-12-28
TSINGHUA UNIV +1
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem of low photoelectric conversion efficiency of existing organic solar cells due to low light absorption efficiency, the present invention provides an organic solar cell using the surface plasmon effect of nanoparticles, using the core-shell structure nanoparticles Localized Surface Plasmon Resonance Enhanced Properties, Improving the Photoelectric Conversion Efficiency of Organic Solar Cells by Tuning Its Resonant Peaks

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0034] The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0035] figure 1 A schematic cross-sectional view of an organic solar cell according to an embodiment of the invention is shown. in figure 1 Among them, the organic solar cell element mainly includes a first electrode 1, a modified layer 3 and a photosensitive active layer 4 under the first electrode 1, and a second electrode 5. The aforementioned photosensitive active layer 4 is a single layer structure composed of an organic donor material and an organic acceptor material, wherein the organic donor material and the organic acceptor material can be mixed or layered with each other The photosensitive active layer 4 is formed in a way. The aforementioned organic donor material can be, for example, poly(3-hexylthiophene) (...

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Abstract

The invention discloses an organic solar cell that uses core-shell nanoparticles to improve conversion efficiency, and aims to provide a new type of organic solar cell that utilizes the surface plasmon enhancement effect of metal-core-shell nano-core-shell particles to improve conversion efficiency and reduce material costs. Battery. It includes a first electrode, a modified layer, an active layer and a second electrode, wherein the core-shell structure nanoparticles with surface plasmon effect are at least contained in the junction of the active layer and the modification layer, inside the active layer and at the junction of the active layer and the second electrode at one or more of these three locations. At the same time, the invention can control and tune the surface plasmon resonance enhancement characteristics of the metal-dielectric core-shell nanoparticles, thereby improving the photoelectric conversion efficiency of the organic solar cell.

Description

Technical field [0001] The invention relates to a solar cell, in particular to a new type of organic solar cell. Background technique [0002] With the gradual exhaustion of fossil fuels and the increasing greenhouse effect brought by the use of fossil fuels, the development of new energy with environmental protection value has become an urgent matter. Solar energy is an endless and clean energy source. Scientists from various countries are committed to developing solar cells of various materials for use in various electrical or electronic products in daily life. Hybrid heterojunction organic solar cells are mostly polymer materials for photoelectric conversion layers. Simpler formation methods such as coating or inkjet methods can be used to produce photoelectric conversion layers. Excitons can reach the interface between the donor and the acceptor (ie, the junction) through a short path, so that the efficiency of charge separation has been improved, so it has begun to gain th...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/48B82Y30/00
CPCY02E10/549Y02E10/50
Inventor 刘仿黄翊东曲迪许骐谢婉露青山与一迁村讫裕奥良彰
Owner TSINGHUA UNIV
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