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Fluorenyl cyano indanone non-conjugated polymer receptor and preparation method thereof

A technology of fluorenyl cyanoindanone and non-conjugated polymers, which is applied in the field of polymer solar cell acceptor materials, can solve the problems of lagging development of polymer acceptors, and achieve good physical and chemical properties, good application prospects, and low price low effect

Pending Publication Date: 2021-12-31
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And compared with small molecule receptors, the development of polymer receptors is relatively lagging behind

Method used

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  • Fluorenyl cyano indanone non-conjugated polymer receptor and preparation method thereof
  • Fluorenyl cyano indanone non-conjugated polymer receptor and preparation method thereof
  • Fluorenyl cyano indanone non-conjugated polymer receptor and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Embodiment 1, the preparation of fluorenyl cyanoindanone non-conjugated polymer

[0044] This example provides a fluorenyl cyanoindanone non-conjugated polymer. Firstly, monomer M1 is synthesized. For the synthesis route, see figure 1 ; Re-synthesis of polymer P, its synthetic route see figure 2 .

[0045] 1.1 Preparation of monomer M1

[0046] The preparation of monomer M1 specifically comprises the following steps:

[0047] 1.1.1 Synthesis of intermediate compound C

[0048] The synthesis of intermediate compound C specifically comprises the following steps

[0049] (a) Synthesis of Intermediate Compound B

[0050] The structural formula of intermediate compound B is as follows

[0051]

[0052] In an argon atmosphere, weigh compound A (2.70mmol, 892.35mg) and tetrabutylammonium bromide (0.27mmol, 87.68mg) into a two-necked bottle, then add toluene (31mL) and 50% mass fraction of NaOH solution (31 mL). After deoxygenating the raw material mixture by bubbling...

Embodiment 2

[0070] Example 2, thermal stability, gel permeation chromatography, ultraviolet-visible-near-infrared absorption spectrum, electrochemical properties and photoluminescent properties of polymer P

[0071] 2.1 Thermal stability of polymers

[0072] Figure 5 It is given that polymer P is raised from room temperature to 540°C at a rate of 20°C / min under nitrogen atmosphere. The Td (weight loss 5%) of the polymer is 381° C., indicating that the thermal stability of the polymer is good, which lays a foundation for the application of the material in polymer photovoltaic devices.

[0073] 2.2 Gel Permeation Chromatography of Polymer P

[0074] Image 6 The number average molecular weight (Mn) measured by gel permeation chromatography (GPC) of polymer P is 3.91KDa, the weight average molecular weight (Mw) is 7.00KDa, and the distribution coefficient PDI is 2.19.

[0075] 2.3 UV-Vis-NIR absorption spectrum of polymer P

[0076] Figure 7 The ultraviolet-visible-near-infrared abso...

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Abstract

The invention relates to a fluorenyl cyano indanone non-conjugated polymer receptor and a preparation method thereof. The invention relates to a conjugated polymer based on thiophene and benzothiadiazole and a preparation method thereof. According to the invention, a non-trapezoidal condensed ring micromolecule monomer is designed and synthesized by using fluorene and cyano indanone structural units, and then the non-conjugated polymer receptor with good solubility is synthesized by a Stille copolymerization method. According to the invention, non-trapezoidal fused ring small molecule receptors are bridged through a non-conjugated alkyl chain to form a main chain non-conjugated polymer receptor, the main chain non-conjugated polymer receptor has wide and strong absorption in a visible-near infrared region, and a flexible side chain can provide good solubility for a material. The effective intermolecular charge transfer can occur between the polymer and a donor, and the polymer has good physicochemical properties. Therefore, the material has a potential application prospect in polymer solar cells as a semiconductor active layer donor material.

Description

technical field [0001] The invention belongs to the field of acceptor materials for polymer solar cells, and in particular relates to fluorenyl cyanoindanone non-conjugated polymers and a preparation method thereof. Background technique [0002] Polymer solar cells (PSCs) are emerging solar cells. It has the advantages of low potential cost, large-area thin-film devices, and flexible and semi-transparent devices, which have attracted extensive attention. Active layer materials are the key materials of polymer solar cells, and polymer receptors are one of the key research objects in the field of polymer solar cells. Designing and synthesizing new acceptor materials is an important aspect in the innovation of active layer materials and the development of polymer solar cells. [0003] Acceptor materials are divided into two categories: fullerenes and nonfullerenes. Fullerenes have been extensively studied early due to their high electron mobility and isotropic electron accep...

Claims

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Application Information

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IPC IPC(8): C08G61/12H01L51/42H01L51/46
CPCC08G61/126C08G2261/124C08G2261/143C08G2261/3142C08G2261/314C08G2261/3223C08G2261/414C08G2261/522C08G2261/91C08G2261/514H10K85/113H10K85/151H10K30/00Y02E10/549
Inventor 邓平林珍松郑颖萱郭怡萍
Owner FUZHOU UNIV
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