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A kind of organic solar cell and preparation method thereof

A solar cell, organic technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as difficulty in control, and achieve the effect of improving energy conversion efficiency

Inactive Publication Date: 2011-12-14
SHENZHEN TRONY SOLAR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its function is mainly to split the excitons at the anode interface. On the one hand, it must suppress the unnecessary charge injection at the anode interface, and at the same time rely on this exciton split to obtain the photocurrent, which is difficult to control in the actual operation process.

Method used

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  • A kind of organic solar cell and preparation method thereof
  • A kind of organic solar cell and preparation method thereof
  • A kind of organic solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] figure 1 It is the structural diagram of embodiment 1 of the present invention, and transparent insulating substrate 1 adopts quartz glass; Transparent electrode 2 adopts FTO stripe electrode, and its sheet resistance is 20 ohms / □; Anode modification layer 3 adopts SiO2 silicon dioxide material; Layer 4 adopts CuPc copper phthalocyanine thin film; second photosensitive layer 5 adopts C60 thin film; buffer layer 6 adopts organic material Alq3 thin film; high reflectivity electrode 7 adopts Al aluminum thin film electrode.

[0043] Prepare as follows:

[0044] Polished quartz glass with a thickness of 1.1mm is selected as the transparent insulating substrate 1, and the quartz glass is cleaned for 2-3 hours by ultrasonic method;

[0045] A layer of ITO conductive film is grown on one side of the quartz glass by sputtering as the transparent electrode 2, and the thickness of the ITO film is 100nm;

[0046] Photolithographically etch the ITO conductive film into the requi...

Embodiment 2

[0054] See figure 1 The transparent insulating substrate 1 adopts quartz glass; the transparent electrode 2 adopts ITO stripe electrodes, and its square resistance is 15 ohms / □; the anode modification layer 3 adopts LiF lithium fluoride material; the first photosensitive layer 4 adopts CuPc copper phthalocyanine thin film; The second photosensitive layer 5 is made of C60 thin film; the buffer layer 6 is made of organic material Alq3 thin film; the high reflectivity electrode 7 is made of Al aluminum thin film electrode.

[0055] The specific preparation is as follows:

[0056] Polished quartz glass with a thickness of 1.5mm is selected as the transparent insulating substrate 1, and the quartz glass is cleaned for 3 hours by an ultrasonic method;

[0057] A layer of ITO conductive film is grown on one side of the quartz glass by sputtering as the transparent electrode 2 . The thickness of the ITO film is 120nm;

[0058] Photoetching the ITO conductive film into the required...

Embodiment 3

[0066] like figure 1 , the transparent insulating substrate 1 is made of quartz glass; the transparent electrode 2 is made of ITO stripe electrode, and its square resistance is 17 ohms / □; the anode modification layer 3 is made of TiOx material; the first photosensitive layer 4 is made of pentacene film; the second photosensitive layer 5 adopts C60 thin film; buffer layer 6 adopts organic material BCP thin film; high reflectivity electrode 7 adopts Ag silver thin film electrode.

[0067] Prepare as follows:

[0068] Polished quartz glass with a thickness of 3.2mm is selected as the transparent insulating substrate 1, and the quartz glass is cleaned for 4 hours by ultrasonic method;

[0069] A layer of ITO conductive film is grown on one side of the quartz glass by sputtering as the transparent electrode 2 . The thickness of the ITO film is 150nm;

[0070]Photoetching the ITO conductive film into the required striped electrode pattern as the anode of the solar cell;

[0071...

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Abstract

The invention discloses an anode modification technology for an organic micromolecule device having a heterogenous junction and belongs to the field of photoelectric conversion. The defect of low conversion efficiency in the prior art is overcome, an anode interface is modified through an anode insertion layer, anode exciton splitting is suppressed, and the carrier collection efficiency and energy conversion efficiency are improved. The main technical characteristics are that: an anode modification layer is arranged on a transparent electrode and is used for suppressing anode interface exciton splitting; and a heterogenous junction structure consisting of photosensitive layers of an electron donor and an electron acceptor is arranged on the modification layer. The anode interface exciton splitting is effectively suppressed on an anode-donor interface, and carriers can be effectively collected; therefore, the energy conversion efficiency of an organic solar cell is improved.

Description

technical field [0001] The invention discloses an anode modification technology of an organic small molecule device with a heterojunction, belonging to the field of photoelectric conversion. Background technique [0002] A solar cell is a photovoltaic device that converts light energy into electricity. Since Bell Laboratories reported inorganic solar cells with an efficiency of 4% in 1954, solar cells have developed rapidly in the past half a century, and a "green energy revolution" has been set off worldwide. At present, the highest conversion efficiency of amorphous silicon thin-film solar cells in large-scale industrial production of silicon-based thin-film solar cells has reached more than 10%. After the 1990s, photovoltaic devices such as gallium arsenide and cadmium telluride were added to the family of inorganic thin-film solar cells. The research on organic solar cells began in 1958. Kearns and Calvin sandwiched magnesium phthalocyanine (MgPc) between two electrode...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44
CPCY02E10/549Y02E10/50Y02P70/50
Inventor 孙晓宇李毅
Owner SHENZHEN TRONY SOLAR CORP
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