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Small organic molecule donor material based double-junction solar cell device and preparation method thereof

A small molecule donor, solar cell technology, applied in semiconductor/solid-state device manufacturing, electric solid-state devices, semiconductor devices, etc., can solve the problems of few devices, backward photoelectric conversion performance, lack of preparation technology, etc., and achieve good reproducibility Effect

Inactive Publication Date: 2017-02-15
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very few tandem solar cell devices based on organic small molecules, and there is a lack of suitable preparation processes. To prepare, not conducive to the printing preparation of future industrialization

Method used

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  • Small organic molecule donor material based double-junction solar cell device and preparation method thereof
  • Small organic molecule donor material based double-junction solar cell device and preparation method thereof
  • Small organic molecule donor material based double-junction solar cell device and preparation method thereof

Examples

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Embodiment 1

[0037] A double-junction solar cell device based on an organic small molecule donor material, such as figure 1 As shown, including conductive anode ITO glass, cuprous thiocyanide anode modification layer, front cell active layer, zinc oxide electron collection layer, neutral PEDOT:PSS hole collection layer, rear cell active layer, PFN cathode modification layer and aluminum The cathode constitutes a laminated structure, and the thickness of each layer is: ITO anode 110-130nm, copper thiocyanide anode modification layer 35-40nm, front battery active layer 120-130nm, zinc oxide electron collection layer 38-42nm, neutral PEDOT: PSS hole collection layer 38-42nm, rear battery active layer 120-130nm, PFN cathode modification layer 4.5-5.5nm, aluminum cathode 60-80nm.

[0038] The preparation method of the double-junction solar cell device based on the organic small molecule donor material comprises the following steps:

[0039] 1) The ITO glass was ultrasonically cleaned with det...

Embodiment 2

[0057] Double-junction organic solar cell device, the specific structure is the same as in Example 1, such as figure 1 shown.

[0058] The difference from Example 1 is that the material of the anode modification layer is changed to molybdenum oxide, and the materials and dimensions of the other layers are exactly the same as those of Example 1.

[0059] The preparation method of the double-junction organic solar cell device comprises the following steps:

[0060] 1) Indium tin oxide glass (ITO) was ultrasonically cleaned with detergent, deionized water, acetone, and isopropanol solvents for 15 minutes each. After taking it out, it was blown dry with a nitrogen gun, and treated in an ultraviolet ozone cleaner for 20 minutes.

[0061] 2) spin coating molybdenum oxide anode modification layer on the pretreated ITO glass

[0062] An ethanol solution of molybdenum oxide was prepared, spin-coated on the conductive anode substrate to form a film with a thickness of about 35 nm, an...

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Abstract

The invention relates to a small organic molecule donor material based double-junction solar cell device and a preparation method thereof. The solar cell device comprises a conductive anode substrate, an anode modification layer, a front cell active layer, an electron collecting layer, a hole connecting layer, a back cell active layer, a cathode modification layer and a cathode which are sequentially laminated. The double-junction solar cell adopts an absorption spectrum complementary small organic molecule material to act as a donor material in the front and back sub-cell active layers. The anode modification layer is made of cuprous rhodanide or molybdenum oxide. The electron collecting layer is made of zinc oxide nano particles. The hole colleting layer is made of poly(3,4-ethylenedioxythiophene) / poly(styrene sulfonate) (PEDOT:PSS) with the PH-value being neutral. The invention further provides a preparation method of the double-junction solar cell. In the preparation process of the device, the metal cathode is prepared through evaporation, and the rest of thin films are prepared by adopting a method of solution spin coating.

Description

technical field [0001] The invention relates to a double-junction organic solar cell device based on an organic small molecule donor material and a preparation method thereof, belonging to the technical field of organic solar cells. Background technique [0002] In today's society, the continuous consumption of fossil energy makes human beings face the crisis of energy shortage, and the development of renewable energy is imminent. As a green, non-polluting, inexhaustible clean energy, solar energy can meet the ever-increasing energy demand of human beings. Therefore, the utilization of solar energy has attracted worldwide attention. Compared with inorganic silicon solar cells, organic solar cells have become one of the most potential photovoltaic devices due to their advantages of low cost, light weight, solution processing, flexible devices, and large-area printing preparation. [0003] After recent years of development, the energy conversion efficiency of single-junction...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K30/211H10K30/81Y02E10/549
Inventor 陈永胜李淼淼万相见张洪涛张倩阚斌
Owner NANKAI UNIV
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