Regular polymer containing monofluorine-substituted benzo-hetero[1,3]diazole and preparation and application of regular polymer

Abstract

The invention belongs to the field of organic photoelectric materials, and discloses a regular polymer containing monofluorine-substituted benzo-hetero[1,3]diazole, a preparation method of the regular polymer and application of the regular polymer in the field of organic photoelectric technologies. The structural formula of the polymer is shown as the first formula (please see the formula in the description), wherein x, y and z are separately independent and represent integers ranging from 0 to 5, n represents a positive integer ranging from 3 to 100,000, X1, X2 and X3 are separately independent and are selected from O or S or Se or Te or N-R or R-C-R or R-Si-R or R-Ge-R or R-Sn-R, R represents straight chains or branch chains or circular alkyl chains of C1-C30, R1, R2, R3 and R4 are separately independent and are selected from hydrogen, an alkyl group with 1-30 carbon atoms and an alkoxy group with 1-30 carbon atoms, an alkenyl group, an aryl group, a carboxyl group, a carbonyl group, an amino group, a cyano group, a nitryl group, an ester group, halogen and a halogenated alkyl group, and Ar is selected from a non-substituted or substituted electron-deficient conjugate unit group, an electron-rich conjugate group and a conjugate unit group formed by the units. The polymer can be applied to organic solar cell devices.

Description

Technical field [0001] The invention belongs to the field of organic optoelectronic materials, and in particular relates to a structured polymer containing monofluorine-substituted benzohetero[1,3]diazole and a preparation method thereof and its application in the field of organic optoelectronic technology. Background technique [0002] Organic optoelectronic materials have many advantages, such as light weight, easy processing, low cost, and the ability to make large-area flexible devices, due to their unique photophysical properties, and have received extensive attention in the past decade. [0003] In terms of organic solar cells, a research group in Nature Communication this year has reported that the energy conversion efficiency of single-layer polymer batteries has exceeded 10% (DOI: 10.1038 / ncomms6293), which indicates that organic solar cells have broad commercial prospects. However, compared with inorganic solar cells, the energy conversion efficiency of organic solar cell...

AI Technical Summary

Problems solved by technology

At present, there is no research based on the regular and consistent arrangement of monofluorinated benzohetero[1,3]oxadiazole units along the main chain direction.

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