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Solar cell with small organic molecule mixture heterojunction and preparation method of solar cell

A hybrid heterojunction and solar cell technology, which is applied in semiconductor/solid-state device manufacturing, circuits, electrical components, etc., can solve the problem of low utilization rate of solar energy to the solar spectrum, so as to improve the utilization rate of solar spectrum and carry current efficiently Sub-transmission channels, the effect of improving utilization

Inactive Publication Date: 2011-08-10
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an organic compound that utilizes down-conversion photon control technology, reasonably absorbs and utilizes ultraviolet photon energy, and at the same time combines the hybrid heterojunction structure to broaden the region of exciton splitting and improve the utilization rate of excitons. Small molecule hybrid heterojunction solar cells have solved the current problem of low utilization of solar energy to the solar spectrum

Method used

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  • Solar cell with small organic molecule mixture heterojunction and preparation method of solar cell

Examples

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Embodiment 1

[0058] A solar cell structure with organic small molecule hybrid heterojunction such as figure 1 As shown, wherein, the transparent insulating layer 1 adopts quartz glass; the transparent electrode layer 2 adopts ITO stripe electrodes, and its sheet resistance is 15 ohms / □; the first buffer layer 3 adopts poly(3,4-ethylenedioxythiophene )-poly(styrenesulfonic acid) polymer film; the first photosensitive layer 4 adopts copper phthalocyanine film; the second photosensitive layer 5 adopts copper phthalocyanine (CuPc) and fullerene C 60 Mixed evaporation; the third photosensitive layer 6 uses fullerene C 60 thin film; the second buffer layer 7 adopts Alq 3 thin film; the high reflectivity electrode layer 8 adopts aluminum thin film electrode; the down conversion layer 9 adopts Eu 3+ Doped LiGdF 4 Functional film.

[0059] Its specific preparation method is as follows:

[0060] (1) First, grow a layer of ITO conductive film on one side of the quartz glass by sputtering, the th...

Embodiment 2

[0071] A solar cell structure with organic small molecule hybrid heterojunction such as figure 1 As shown, wherein, the transparent insulating layer 1 adopts quartz glass; the transparent electrode layer 2 adopts aluminum stripe electrodes; the first buffer layer 3 adopts Alq 3 film; the first photosensitive layer 4 adopts fullerene C 60 thin film; the second photosensitive layer 5 adopts copper phthalocyanine and fullerene C 60 mixed thin film; the third photosensitive layer 6 adopts copper phthalocyanine thin film; the second buffer layer 7 adopts LiF thin film; the high reflectivity electrode layer 8 adopts gold thin film electrode; the down conversion layer 9 adopts Eu 3+ Doped LiGdF 4 Functional film.

[0072] Its specific preparation method is as follows:

[0073] (1) Firstly, a layer of aluminum striped translucent electrode film is deposited on the side of the quartz glass with a thickness of 1.1mm and a striped electrode mask by vacuum evaporation, with a thicknes...

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Abstract

The invention relates to a solar cell with a small organic molecule mixture heterojunction, which comprises a transparent insulating layer, wherein a transparent electrode layer, a first buffer layer, a first photosensitive layer, a second photosensitive layer, a third photosensitive layer, a second buffer layer and a high-reflectivity electrode layer are sequentially laminated at one side of the transparent insulating layer; and a lower transition layer is formed at the other side of the transparent insulating layer. The mixture heterojunction and the lower transition layer are combined together, so that the solar spectrum utilization ratio of the organic solar cell and exciton dissociation efficiency can be improved; meanwhile, the high-reflectivity electrode is reasonable utilized, the optical field distribution in the device can be adjusted, therefore, the solar cell can work at an optimum state. The invention also relates to a preparation method of the solar cell.

Description

technical field [0001] The invention relates to the field of photoelectric conversion devices, in particular to a novel organic small molecule solar cell and a preparation method thereof. Background technique [0002] With the gradual depletion of non-renewable energy sources, people's requirements for the development and utilization of new renewable green energy sources are becoming more and more urgent. Among them, solar cells are considered to be the green energy with the most application prospect and application value to deal with the energy crisis in the 21st century due to its non-pollution, convenient source and many other advantages. In recent years, the solar photovoltaic industry has become one of the hottest links in the world's economies. As the core module of the photovoltaic system, solar cells have also ushered in the spring of its development with the rise of industrial investment climax. At present, relatively mature silicon-based solar cells are in a domi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/48
CPCY02E10/50Y02E10/549
Inventor 周明杰黄杰孙晓宇
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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