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Preparation method of conjugated polymer of indole and phenoid compound

A technology of conjugated polymers and compounds, applied in electrical components, circuits, semiconductor devices, etc., can solve the problems of high cost, complex structure, suitable trouble, etc., and achieve the effects of high energy conversion efficiency, simple synthesis, and low cost

Inactive Publication Date: 2017-07-11
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The common problems of active layer donor materials of solar cells with an energy conversion efficiency of more than 7% are that the structure is very complicated, the fitting is troublesome, the cost is particularly high, and it is difficult for industrial production and application

Method used

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  • Preparation method of conjugated polymer of indole and phenoid compound
  • Preparation method of conjugated polymer of indole and phenoid compound
  • Preparation method of conjugated polymer of indole and phenoid compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 indole and thiophene conjugated polymer

[0033] This implementation provides the synthesis of half-side isoindigo-based conjugated polymer (PIDT-T), its structural formula is shown in Table 1, and the synthetic route is shown in figure 1 .

[0034] Table 1

[0035]

[0036] Specific steps are as follows:

[0037] (a) Synthesis of compound 1

[0038] The structural formula of compound 1 is:

[0039] Wherein R is 2-octyldodecyl.

[0040] The preparation method of compound 1: such as figure 1 As indicated, 6-bromoisatin (2.26g, 10mmol), potassium carbonate (2.07g, 15mmol), 1-iodo-2-octyl dodecane (4.90g, 12mmol) and DMF (50mL) were added to the two-necked flask medium, under nitrogen pressure, react at 80°C for 24h, cool to room temperature, add 100mL of dilute hydrochloric acid and stir for 2h, add a large amount of water, extract with dichloromethane for 3 times, combine the organic phases, wash with saturated sodium chloride, anhydrous MgSO 4...

Embodiment 2

[0055] The ultraviolet absorption spectrum and electrochemical properties of embodiment 2, polymer PIDT-T

[0056]The present invention relates to the polymer PTEI-T of embodiment 1 in the UV-vis absorption spectrum of chloroform solution and solid film, see Figure 5 , the maximum absorption peak position of the conjugated polymer PTEI-T in chloroform solution is at 615nm, the maximum absorption peak position of the film is at 642nm, and the optical band gap is 1.57eV. Figure 6 The cyclic voltammetry curves of polymer PTEI-T are given. The cyclic voltammetry test is carried out on the computer-controlled CHI610D telephone line analyzer, using the traditional three-electrode test system, the platinum electrode is the working electrode, the silver / silver ion electrode is the reference electrode, and the electrolyte is tetra-n-butyl hexafluorophosphoric acid Acetonitrile solution of ammonium (0.1M), scan speed is 50mv / s, with ferrocene as reference. The oxidation potential ...

Embodiment 3

[0057] The photovoltaic performance of embodiment 3 polymer PIDT-T

[0058] The present invention relates to the application of the polymer PTEI-T of Example 1 as a hole transport material in thin film solar cells. The polymer PTEI-T was used as the donor material (D), fullerene (PC61BM) was used as the acceptor material (A), and the donor-acceptor ratio was 1:1.5. The photovoltaic performance of the material was tested using the bulk heterojunction structure. The test conversion efficiency data of polymer solar cell devices is shown in Table 2, and the I-V curve is shown in Figure 8 . The highest conversion efficiency of PTEI-T in the preliminary test is 7.12%, and the polymer has high open circuit voltage and fill factor.

[0059] Table 2

[0060]

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Abstract

The invention provides a method for preparing a conjugated polymer of indole and phenes, the structure of which is shown in formula I: Wherein, R is a C8-C24 alkyl chain, X is S or Se, and 300≥n>1. Compared with the prior art, the present invention has the following beneficial effects: the present invention adopts a brand-new synthetic method, which is simple in synthesis, low in cost, and high in energy conversion efficiency, reaching 7.32%; it can be used in the synthesis of donor materials and in The application in solar inversion devices is of great significance to the development and application of solar cell technology.

Description

technical field [0001] The invention relates to a preparation method of a conjugated polymer of indole and phenoids, and relates to the field of solution-processable organic semiconductor materials. Background technique [0002] The demand for energy in modern society is increasing day by day. Petroleum, coal, natural gas, etc. are all non-renewable energy sources, which are increasingly exhausted. The development of solar cells and the use of solar energy are an effective way to solve the energy problems faced by human society. [0003] The common problems of active layer donor materials of solar cells with an energy conversion efficiency exceeding 7% are that the structure is very complicated, the fitting is troublesome, the cost is particularly high, and it is difficult to industrialize production and application. Donor materials with simple structures, simple synthesis, and low production costs are urgently needed. Contents of the invention [0004] Aiming at the defe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12H01L31/0256
Inventor 吴建周祥梅张清
Owner SHANGHAI JIAOTONG UNIV