Bay-annulated indigo (BAI) as an excellent electron accepting building block for high performance organic semiconductors

US9196846B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9196846-B2
Application numberUS-201514687059-A
CountryUS
Kind codeB2
Filing dateApr 15, 2015
Priority dateApr 17, 2014
Publication dateNov 24, 2015
Grant dateNov 24, 2015

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Abstract

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A novel electron acceptor based on bay-annulated indigo (BAI) was synthesized and used for the preparation of a series of high performance donor-acceptor small molecules and polymers. The resulting materials possess low-lying LUMO energy level and small HOMO-LUMO gaps, while their films exhibited high crystallinity upon thermal treatment, commensurate with high field effect mobilities and ambipolar transfer characteristics.

First claim

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What is claimed is: 1. A composition comprising of the formula: 7,14-di(thiophen-2-yl)diindolo[3,2,1-de:3′,2′,1′-ij][1,5]naphthyridene-6,13-dione. 2. A method of making the composition of claim 1 comprising: adding a solution of 2-thiopheneacetyl chloride in xylene dropwise to a refluxing xylene suspension of indigo. 3. The met…

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What does patent US9196846B2 cover?
A novel electron acceptor based on bay-annulated indigo (BAI) was synthesized and used for the preparation of a series of high performance donor-acceptor small molecules and polymers. The resulting materials possess low-lying LUMO energy level and small HOMO-LUMO gaps, while their films exhibited high crystallinity upon thermal treatment, commensurate with high field effect mobilities and ambip…
Who is the assignee on this patent?
Liu Yi, He Bo, Pun Andrew, and 1 more
What technology area does this patent fall under?
Primary CPC classification C07D471/22. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Nov 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).