Low-voltage, N-channel transistors including a hybrid semiconductor-dielectric material

摘要

Hybrid semiconducting-dielectric materials and electronic or electro-optic devices using the hybrid semiconducting-dielectric materials. Hybrid semiconducting-dielectric materials comprise molecules that have a core section that provides an n-type semiconducting property and side chains that provide a dielectric property to a layer of hybrid semiconducting-dielectric material. Specific hybrid semiconducting-dielectric materials include tetracarboxylic diimide compounds having sidechains comprising fluorine substituted aliphatic or aromatic moieties linked to the tetracarboxylic diimide structure by an alkylene or heteroalkylene linking group.

主权项

1. An electronic or electro-optic device, comprising:
a first electrode; a second electrode spaced apart from said first electrode; a dielectric disposed between said first and second electrodes; and a layer of hybrid semiconducting-dielectric material disposed between said first and second electrodes, wherein said hybrid semiconducting-dielectric material comprises molecules, in the aggregate, provides an n-type semiconducting property and side chains that, in the aggregate, provide a dielectric property to said layer of hybrid semiconducting-dielectric material, wherein the side chains, in the aggregate, act as the principal dielectric between the first and second electrode; and wherein said hybrid semiconducting-dielectric material is an n-type organic semiconductor according to formula I: wherein A is a condensed aromatic moiety having 2-6 fused aromatic rings or heterocyclic variants thereof; and wherein Y is a substituent, and b is an integer from 0 to the number of unsubstituted carbon atoms on aromatic moiety A; and wherein R is selected from the group consisting of structures III and IV; wherein X is —(CH2)v—, —(CH2)w—O—, or —(CH2)w—O—(CH2)v—; and wherein Z is OCF3 or CnF(2n+1) where n is 1, 2 ,3 or 4; and wherein v is independently 1, 2, 3, or 4, and w is independently 2, 3, or 4; and wherein y is each independently 0, 1, 2, 3, or 4; and wherein t is an integer from 1 to 20.