Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of a-d-d′-a type asymmetric organic photovoltaic acceptor material and its application

An A-D-D, organic photovoltaic technology, applied in organic chemistry, photovoltaic power generation, electric solid devices, etc., can solve problems such as E, and achieve the effect of simplifying molecular structure, simplifying synthesis, and balancing open-circuit voltage and short-circuit current.

Active Publication Date: 2022-05-31
CHANGZHOU UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the low energy conversion efficiency and E loss Larger and other key issues, the present invention provides a class of A-D-D'-A type asymmetric small molecule acceptor materials with simple structure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of a-d-d′-a type asymmetric organic photovoltaic acceptor material and its application
  • A kind of a-d-d′-a type asymmetric organic photovoltaic acceptor material and its application
  • A kind of a-d-d′-a type asymmetric organic photovoltaic acceptor material and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Synthesis of A-D-D'-A type small molecule acceptor materials based on alkoxyindenothiophene.

[0023]

Embodiment 2

[0047]

Embodiment 3

[0058] The EQE curve of PM6:SM4 is shown in Figure 4, under optimal conditions (1:5w / w; CF; 0.5% CN, 100°C thermal annealing and

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
electric potential / voltageaaaaaaaaaa
energy conversion efficiencyaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of organic photovoltaics, in particular to a class of A-D-D'-A type asymmetric organic photovoltaic acceptor materials and applications thereof. Alkoxyindenothiophene and cyclopentadienodithiophene double-electron donor (D-D') units are used to jointly construct a skeleton containing non-covalent bond configuration locks, and 3-( Dicyanomethylene)inden-1-one modifies its terminus. Acceptors containing only simple fused rings have many advantages such as coplanar framework, low energy disorder and J-aggregation tendency, and the optical bandgap of such asymmetric small molecule acceptors is controllable in the range of 1.30-1.45eV tuned, can be combined with most donor materials to construct efficient bulk heterojunction binary organic solar cells. When the donor material is polymer PM6, the energy conversion efficiency of the binary OSCs device is as high as 13.67%, the open circuit voltage is 0.85eV, E loss Only 0.50V.

Description

A class of A-D-D'-A type asymmetric organic photovoltaic acceptor materials and their applications technical field The invention belongs to the technical field of organic photovoltaics, be specifically related to a class of structure is simple, based on A-D-D'-A type asymmetrical Organic photovoltaic acceptor materials and their applications in organic solar cells. Background technique [0002] The development of simple fused ring-like small molecule acceptor materials (number of fused rings ≤ 3) in organic solar cells obviously lags behind Large condensed ring type small molecule acceptor material (the number of condensed rings>3). Most reports of such materials are A‑D‑C‑D‑A with symmetric structure type small molecules, in which the D unit is mainly dithienocyclopentadiene (DTC). So far, based on such acceptor materials and The binary solar cell device efficiency when mixed with polymer donors such as PBDB‑T, PM6 or J52 is typically 10‑14%. But due to Compou...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07D495/04H01L51/42H01L51/46
CPCC07D495/04H10K85/615H10K85/6576H10K30/00Y02E10/549
Inventor 朱卫国朱佳宁谭华邵正勇朱梦冰王峻峰
Owner CHANGZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com