Publication number: 20130248849
Abstract: 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. Formula I has the structure where Q is a fused ring linkage having the formula In Formula I: R1 is the same or different at each occurrence and is D, alkyl, aryl, silyl, alkoxy, aryloxy, cyano, vinyl, or allyl; R2 is the same or different at each occurrence and is H, D, alkyl, or aryl, or both R2 are an N-heterocycle; R3 is the same or different at each occurrence and is H, D, cyano, alkyl or aryl; and a is the same or different at each occurrence and is an integer from 0-4.
Type:
Application
Filed:
December 19, 2011
Publication date:
September 26, 2013
Applicant:
E I DuPont De Nemours and Company
Inventors:
Jerals Feldman, Norman Herron, Michael Henry Howard, JR., Nora Sabina Radu, Vsevolod Rostovtsev, Kerwin D. Dobbs, Adam Fennimore, Weiying Gao, Weishi Wu, Ying Wang, Charles D. Mclaren
Patent number: 8436341
Abstract: There is provided an organic electronic device having an anode, a hole injection layer, a photoactive layer, an electron transport layer, and a cathode. At least one of the photoactive layer and the electron transport layer includes a compound having Formula I where: R1 is the same or different and can be phenyl, biphenyl, naphthyl, naphthylphenyl, triphenylamino, or carbazolylphenyl; and one of the following conditions is met: (i) R2?R3 and is H, phenyl, biphenyl, naphthyl, naphthylphenyl, arylanthracenyl, phenanthryl, triphenylamino, or carbazolylphenyl; or (ii) R2 is H or phenyl; and R3 is phenyl, biphenyl, naphthyl, naphthylphenyl, arylanthracenyl, phenanthryl, triphenylamino, and carbazolylphenyl; When both R1 are phenyl, R2 and R3 can be 2-naphthyl, naphthylphenyl, arylanthracenyl, 9-phenanthryl, triphenylamino, or m-carbazolylphenyl.
Type:
Grant
Filed:
December 22, 2009
Date of Patent:
May 7, 2013
Assignee:
E I du Pont de Nemours and Company
Inventors:
Norman Herron, Mark A. Guidry, Vsevolod Rostovtsev, Weiying Gao, Ying Wang, Yulong Shen, Jeffrey A. Merlo
Patent number: 8309731
Abstract: There is provided an organic electronic device having an anode, a hole injection layer, a photoactive layer, an electron transport layer, and a cathode. At least one of the photoactive layer and the electron transport layer includes a compound having Formula I where: R1 is the same or different and can be phenyl, biphenyl, naphthyl, naphthylphenyl, triphenylamino, or carbazolylphenyl; and one of the following conditions is met: (i) R2=R3 and is H, phenyl, biphenyl, naphthyl, naphthylphenyl, arylanthracenyl, phenanthryl, triphenylamino, or carbazolylphenyl; or (ii) R2 is H or phenyl; and R3 is phenyl, biphenyl, naphthyl, naphthylphenyl, arylanthracenyl, phenanthryl, triphenylamino, and carbazolylphenyl; When both R1 are phenyl, R2 and R3 can be 2-naphthyl, naphthylphenyl, arylanthracenyl, 9-phenanthryl, triphenylamino, or m-carbazolylphenyl.
Type:
Grant
Filed:
November 18, 2011
Date of Patent:
November 13, 2012
Assignee:
E I du Pont de Nemours and Company
Inventors:
Norman Herron, Mark A. Guidry, Vsevolod Rostovtsev, Weiying Gao, Ying Wang, Yulong Shen, Jeffrey A. Merlo