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Flexible organic solar cell and full-printing preparation method thereof

A solar cell and full printing technology, applied in the field of solar cells, can solve problems such as expensive equipment, unfavorable industrial preparation, and reduced yield of organic solar cells

Inactive Publication Date: 2018-09-18
SHANGHAI MI FANG ELECTRONICS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, vacuum evaporation technology requires expensive equipment and takes a long time to prepare
For inkjet printing, in order to ensure the inkjet effect, it is usually necessary to add some high-boiling solvents such as tetralin and ethylene glycol. These solvents will greatly damage the active layer film during printing and post-processing, reducing organic Yield of solar cells
The top electrode prepared by vacuum evaporation technology and inkjet printing technology is opaque. In order to ensure the effective absorption of light by the donor and the acceptor, organic solar cells are extremely dependent on the transparent bottom electrode of indium tin oxide, and flexible substrates such as The patterning process of PET / ITO is complex, which is not conducive to the series and parallel use of electronic devices, and is also not conducive to large-scale industrial preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] figure 1 is a schematic structural view of the flexible organic solar cell according to the first embodiment of the present invention. Such as figure 1 As shown, the flexible organic solar cell includes a polyethylene terephthalate-indium tin oxide (Polyethylene terephthalate-ITO, PET-ITO) flexible base electrode 1, a first transport layer 2, an active layer 3 and a top electrode layer 4 . After the organic solar cell absorbs light, the light passes through the first transport layer 2, and the material in the active layer 3 absorbs light to generate excitons (electron-hole pairs), and then the excitons diffuse into the active layer material. The interface of the bulk material is split into free carriers, namely electrons and holes. Subsequently, the electrons and holes are transported to the electrode through the transport layer in their respective host phases (the donor phase of the donor material and the acceptor phase of the acceptor material), that is, the electr...

Embodiment 2

[0104] Figure 4 It is a schematic structural diagram of a flexible organic solar cell according to the second embodiment of the present invention. Such as Figure 4 As shown, the flexible organic solar cell includes a polyethylene terephthalate-indium tin oxide (Polyethylene terephthalate-ITO, PET-ITO) flexible base electrode 1, a first transport layer 2, an active layer 3 and a top electrode layer 4 . After the organic solar cell absorbs light, the light passes through the first transport layer 2, and the material in the active layer 3 absorbs light to generate excitons (electron-hole pairs), and then the excitons diffuse into the active layer material. The interface of the bulk material is split into free carriers, namely electrons and holes. Subsequently, the electrons and holes are transported to the electrode through the transport layer in their respective host phases (the donor phase of the donor material and the acceptor phase of the acceptor material), that is, the...

Embodiment 3

[0117] Figure 7 is a schematic structural view of a flexible organic solar cell according to the third embodiment of the present invention. Such as Figure 7As shown, the flexible organic solar cell includes a flexible substrate 1 , a bottom electrode 2 , a first transport layer 3 , an active layer 4 and a top electrode layer 5 . After the organic solar cell absorbs light, the light passes through the flexible substrate 1 and the first transport layer 3, and the material in the active layer 4 absorbs the light to generate excitons (electron-hole pairs), and then the excitons diffuse into the active layer material to give The interface between the bulk material and the acceptor material is split into free carriers, namely electrons and holes. Subsequently, the electrons and holes are transported to the electrode through the transport layer in their respective host phases (the donor phase of the donor material and the acceptor phase of the acceptor material), that is, the ele...

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Abstract

The invention relates to the field of solar cells, and particularly provides a flexible organic solar cell and a full-printing preparation method thereof. The silver conductive ink is printed on a flexible substrate to form a comb-shaped silver electrode. Meanwhile, a high-conductivity transmission layer is used, so that the absorption loss of the light is reduced. The dependence of a battery device on an ITO electrode is reduced. A conductive polymer blended solution is dispensed or printed on an active layer, and then a top electrode layer of hole transmission and electrode blending is formed. Or, the silver conductive ink is printed on a second transmission layer and then a comb-shaped silver electrode is formed. The damage of the solvent to the thin film of the active layer is reduced.The yield of the flexible organic solar cell is improved.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a flexible organic solar cell and a full printing preparation method thereof. Background technique [0002] Organic solar cells mainly use organic substances with photosensitive properties as semiconductor materials, and generate voltage to form current through the photovoltaic effect to achieve the effect of solar power generation. According to the device structure, organic solar cells can be divided into single junction structure, heterojunction structure and so on. The photoelectric conversion process of organic solar cells is generally that after the cell absorbs light, excitons are generated in the donor or acceptor, and the excitons diffuse to the interface layer of the donor and acceptor, and the excitons are split into free carriers at the interface layer, that is, Electrons and holes, and then the electrons and holes are transported to the corresponding electrodes through the...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44B41M5/00B82Y30/00
CPCB82Y30/00B41M5/0023B41M5/0064B41M2205/36B41M2205/38B41M2205/40H10K71/135H10K30/451H10K30/82Y02E10/549
Inventor 李胜夏王家林蓝河
Owner SHANGHAI MI FANG ELECTRONICS LTD
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