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a-d-a-type water/alcohol soluble conjugated small molecules and their applications in organic electronic devices

An A-D-A, 1.A-D-A technology is applied to A-D-A type water/alcohol soluble conjugated small molecules and its application in organic optoelectronic devices, which can solve the problems of large-scale development and application limitations, high pollution and high cost, and achieve improved Fill factor and energy conversion efficiency, clear structure, high batch repeatability

Active Publication Date: 2019-08-20
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Among them, inorganic solar cells represented by inorganic silicon have been industrialized and used in people's lives. However, due to their non-negligible shortcomings such as high pollution, high energy consumption, and high cost, their large-scale development and application have been greatly restricted. limits

Method used

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  • a-d-a-type water/alcohol soluble conjugated small molecules and their applications in organic electronic devices
  • a-d-a-type water/alcohol soluble conjugated small molecules and their applications in organic electronic devices
  • a-d-a-type water/alcohol soluble conjugated small molecules and their applications in organic electronic devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The synthetic route of representative A-D-A type water / alcohol type conjugated small molecule PFP and NFN is as follows:

[0037]

[0038] (1) The precursor FEN was synthesized according to the method disclosed in the literature [J.Am.Chem.Soc.2013,135,15326-15329].

[0039] (2) The precursor Br-PDI was synthesized according to the method disclosed in the literature [Dyes and Pigments 2016, 134, 164-170].

[0040] (3) Synthesis of precursor Br-NDI:

[0041] Dissolve 5.1636g of brominating reagent in 30mL of concentrated sulfuric acid, slowly add it into a 150mL three-necked flask containing 5.3636g of naphthalene dianhydride and 40mL, stir and react at 110°C for 6 hours, cool to room temperature, pour into crushed ice, After filtering, the filter residue was washed several times with water and then with methanol, and dried in a vacuum oven to obtain a brominated mixture of naphthalene dianhydride. The mixture was poured into a 500 mL three-necked flask, 250 mL of g...

Embodiment 2

[0048] The representative A-D-A type water / alcohol-soluble conjugated small molecules NFN and PFP synthesized in Example 1 are used as cathode interface modification materials in organic solar cells. The structure of organic solar cells is as figure 1 As shown, the sequence is: substrate 1 / anode 2 / anode interface layer 3 / light absorbing layer 4 / cathode interface layer 5 / cathode 6. The A-D-A type water / alcohol-soluble conjugated small molecules described in the present invention are used as the cathode interface layer 5 in organic solar cells.

[0049] Pre-cut the ITO conductive glass with a square resistance of 20 ohms / cm2 into 15mm×15mm square pieces. Use acetone, special detergent for micron-sized semiconductors, deionized water, and isopropanol to clean ultrasonically in sequence, blow nitrogen whistle, and place in a constant temperature oven for later use. A 40 nm thick layer of 3,4-ethylenedioxythiophene / polystyrene sulfonate anode interface material was spin-coated on...

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Abstract

The invention involves A‑D涉A water / alcohol -soluble co -轭 small molecules and its application in organic optoelectric components.The A‑D型A water / alcohol -soluble co -dissolved small molecules include four parts of A, B, C, and D.A is a common unit with an electron -absorbing nature. B is the bridge key to connect A and D co -cricket units. C is a water / alcohol -soluble side chain containing polar groups. D is a units with electronic properties.The A‑D型A co -轭 small molecule can be processed with strong polar solvents such as alcohol and water, which is suitable for making complex optoelectric components.A‑D型A water / alcohol -soluble co -轭 Small molecules can be used as an cathode interface to decorate the material in organic optical components to improve the performance of the device.

Description

technical field [0001] The invention relates to the field of organic photoelectric materials, in particular to a class of A-D-A water / alcohol-soluble conjugated small molecules and their application in organic photoelectric devices. Background technique [0002] Solar energy is an inexhaustible and inexhaustible clean energy. The development and utilization of solar energy is of great significance to solve the increasingly serious energy crisis and environmental problems. In recent years, more and more scientists have invested in the development of photovoltaic technology. Come on study. [0003] Among them, inorganic solar cells represented by inorganic silicon have been industrialized and used in people's lives. However, due to their non-negligible shortcomings such as high pollution, high energy consumption, and high cost, their large-scale development and application have been greatly restricted. limits. As a new type of photovoltaic technology, organic solar cells hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D519/00H01L51/42H01L51/46
CPCC07D519/00H10K85/615H10K85/6572H10K30/00Y02E10/549
Inventor 黄飞刘金菊胡志诚郑楠楠曹镛
Owner SOUTH CHINA UNIV OF TECH
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