E.i. Dupont De Nemours and Company

Steven Kit Chow

Norman Herron

Michael Henry Howard, Jr

Ying Wang

Adam Fennimore

Weiying Geo

This invention relates to a composition including (a) a dopant, (b) a first host having at least one unit of Formula I, and (c) a second host compound having Formula II. The formulae have the structures: where Q is a fused ring linkage having the formula  In Formula I: Aris an aromatic group including at least one electron-withdrawing group or a deuterated analog; Aris an aryl group, an aromatic group including at least one electron-withdrawing group or a deuterated analog; Rand Rare the same or different at each occurrence and are H, D, aryl or deuterated aryl. In Formula II: Ris the same or different at each occurrence and is D, aryl, or deuterated aryl, with the proviso that at least one Ris aryl or deuterated aryl; Rand Rare the same or different at each occurrence and are D, aryl, or deuterated aryl; a is an integer from 1-4; and b and c are the same or different and are an integer from 0-4.

Compositions for electronic applications

There is provided a compound having Formula I  In Formula I: R-Rare the same or different and can be H, D, alkyl, aryl, alkoxy, aryloxy, silyl, or deuterated analogs of alkyl, aryl, alkoxy, aryloxy and silyl, where adjacent R groups can be joined together to form a ring; and all other sites are H or D. Additionally in Formula I: (i) at least one of R-Rand at least one of R-Ris alkyl, alkoxy, silyl, or a deuterated analog, and (ii) at least one of R-Rand at least one of R-Ris aryl, aryloxy, or a deuterated analog.

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Brooklyn, NY, United States of America

Steven Kit Chow