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Preparation method of micro-molecular receptor for polymeric solar batteries

A technology of small molecule receptors and solar cells, which is applied in the fields of electric solid-state devices, semiconductor/solid-state device manufacturing, circuits, etc., can solve the problems that limit the further improvement of fullerene performance, high price, and complicated preparation process, and achieve photovoltaic Excellent conversion efficiency, low price, and simple preparation

Inactive Publication Date: 2016-11-02
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fullerene acceptors are expensive, complicated preparation process, narrow absorption wavelength, high affinity energy, and poor solubility, which severely limit the wider application of fullerenes as electron acceptor materials for organic solar cells and the further improvement of device performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In the dry reactor, add 1.0 molar parts of dithienoindacene trimethyltin and 100 milliliters of dry toluene, feed nitrogen with a flow rate of 0.5 liters per minute by bubbling for 1 hour, under nitrogen atmosphere, Add 2.0 molar parts of 4-bromo-7-aldehyde-2,1,3-benzothiadiazole and 0.05 molar parts of tetrakistriphenylphosphine palladium, stir at room temperature for 1 hour, mix the raw materials, and raise the temperature to 90 ℃, and constant temperature at 90 ℃ reflux stirring reaction for 4 hours, stop the reaction, lower to room temperature, add 50 ml of dichloromethane, stir at room temperature for 1 hour, stop stirring, distill toluene and dichloromethane under reduced pressure to obtain intermediate 2, 5-bis(7-formyl-2,1,3-benzothiadiazole)-dithienoindacene.

[0016] In the dry reactor, add 1.0 molar parts of intermediate, 50 milliliters of chlorobenzene, 100 milliliters of glacial acetic acid and 2.0 molar parts of 3-ethylrhodanine, and feed nitrogen gas at a...

Embodiment 2

[0018] In the dry reactor, add 1.0 molar parts of dithienoindacene trimethyltin and 100 milliliters of dry toluene, feed nitrogen with a flow rate of 0.5 liters per minute by bubbling for 1 hour, under nitrogen atmosphere, Add 2.0 molar parts of 4-bromo-7-aldehyde-2,1,3-benzothiadiazole and 0.05 molar parts of tetrakistriphenylphosphine palladium, stir at room temperature for 1 hour, mix the raw materials, and raise the temperature to 90 ℃, and constant temperature at 90 ℃ reflux stirring reaction for 6 hours, stop the reaction, lower to room temperature, add 50 ml of dichloromethane, stir at room temperature for 1 hour, stop stirring, distill toluene and dichloromethane under reduced pressure to obtain intermediate 2, 5-bis(7-formyl-2,1,3-benzothiadiazole)-dithienoindacene.

[0019] In the dry reactor, add 1.0 molar parts of intermediate, 50 milliliters of chlorobenzene, 100 milliliters of glacial acetic acid and 2.0 molar parts of 3-ethylrhodanine, and feed nitrogen gas at a...

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Abstract

The invention relates to a preparation method of a micro-molecular receptor for polymeric solar batteries. The preparation method comprises the following steps: 1, carrying out a Suzuki coupling reaction on dithienoindacene trimethyltin and 4-bromo-7-aldehyde-2,1,3-benzothiadiazole to prepare an aldehyde-terminated intermediate; and 2, carrying out a Knoevenagel condensation reaction on the terminated intermediate through using 3-ethylrhodanine to obtain the micro-molecular receptor product. The micro-molecular receptor prepared in the invention can be used for the polymeric solar batteries, and has the characteristics of low price, simple preparation and excellent photovoltaic conversion efficiency.

Description

technical field [0001] The invention relates to a preparation method of a small molecule acceptor, in particular to a preparation method of a small molecule acceptor for a polymer solar cell, and belongs to the technical field of photoelectric material preparation. Background technique [0002] Polymer solar cells have the characteristics of low cost, light weight, good flexibility, and large-area processing, and are expected to replace traditional silicon-based solar cells. [0003] Polymer solar cells consist of polymer donor and acceptor materials. At present, acceptor materials are mainly fullerene materials. Fullerene acceptors are expensive, complicated preparation process, narrow absorption wavelength, high affinity energy, and poor solubility, which severely limit the wider application of fullerenes as electron acceptor materials for organic solar cells and the further improvement of device performance. . Contents of the invention [0004] The present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D495/04H01L51/46
CPCC07D495/04H10K85/656H10K85/6576H10K85/657Y02E10/549Y02P70/50
Inventor 徐海涛符祥
Owner NANCHANG HANGKONG UNIVERSITY
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