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Supermolecular organic solar cell and preparation method thereof

A solar cell and supramolecular technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low photoelectric conversion efficiency, inability to spontaneously dissociate, and low carrier mobility in organic solar cells

Inactive Publication Date: 2010-10-13
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0006] It is precisely because of the tightly bound Frenkle excitons produced in organic solar cells, which cannot dissociate spontaneously, and the "hopping" mechanism of charge transport, which lead to the low carrier mobility of organic materials and other factors, so that the photoelectricity of organic solar cells Low conversion efficiency (about 1 order of magnitude lower than inorganic solar cells)

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  • Supermolecular organic solar cell and preparation method thereof
  • Supermolecular organic solar cell and preparation method thereof
  • Supermolecular organic solar cell and preparation method thereof

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preparation example Construction

[0037] The present invention also proposes a preparation method of a supramolecular organic solar cell, the preparation method comprising the following steps:

[0038]1) Covering the electrode material with a hole transport material to form a thin film on the surface of the metal anode by vacuum evaporation or sputtering or other similar methods to obtain an anode layer;

[0039] 2) Coating the supramolecular power generation layer material containing the donor acceptor block on the hole transport layer by spin coating, and then performing annealing and other treatments to form the power generation layer. The power generation layer can also be prepared by covering the hole transport layer with the power generation layer material by self-assembly method or vapor phase growth method;

[0040] 3) forming an electron transport layer on the power generation layer by spin coating or vapor phase growth;

[0041] 4) Evaporating the cathode on the electron transport layer; spin coatin...

Embodiment 1

[0053] An ITO anode electrode with a thickness of 150-200nm is formed on the cleaned ITO glass substrate. Then ultrasonic cleaning in acetone, isopropanol and ultrapure water for 10 min followed by UV / ozone treatment. Then rinse and dry in the vapor phase of isopropanol. The substrate surface was treated for 3 minutes by the air pressure plasma surface treatment device.

[0054] Next, polyethylenedioxythiophene:polystyrenesulfonate (salt) (manufactured by Starck Ltd.) was formed to a thickness of 50 nm on the ITO film anode layer as a hole transport layer.

[0055] The target power generation layer molecular material (block molecule of thiophene benzamide ester perylene, molecular structure see figure 2 , and its preparation method refers to patent 200910183855.1) Spin coating on the hole transport layer to form a power generation layer with a thickness of about 100nm. Dry under vacuum at room temperature. Then microwave heating to 60 ℃ annealing 2-3 minutes. A supramole...

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Abstract

The invention relates to a supermolecular organic solar cell and a preparation method thereof, in particular to an organic solar cell structure of supermolecular donor-receptor double-block material and a preparation method thereof. The organic solar cell has the following structures of (1) a metal anode layer, (2) a hole transmission layer constituted by a donor material, (3) supermolecular material power generation layer, (4) an electronic transmission layer constituted by an accepter material, and (5) a transmitting cathode layer. All organic layers can be prepared by various organic film deposition methods of vacuum evaporation, spraying, printing and the like.

Description

technical field [0001] The invention relates to a supramolecular organic solar battery structure and a preparation method thereof. Among them, the supramolecular material power generation layer is composed of donor and acceptor diblock molecular structural units, connected by molecular structural units such as linking unit, assembly unit or photosensitive unit to form small molecules or polymer materials, and then prepared by self-assembly process. The supramolecular organic solar cells are prepared by spin coating, evaporation and other processes. Background technique [0002] When electricity, coal, oil and other non-renewable energy resources are frequently running out, and energy issues have increasingly become a bottleneck restricting the development of the international society and economy, more and more countries have begun to implement the "Sunshine Plan" to develop solar energy resources and seek new impetus for economic development. And solar cells are a good appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44H01L51/46H01L51/48
CPCY02E10/549
Inventor 陈润锋郑超黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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