CHRISTOPHER BROWN, MD
Anesthesiologist Assistant at Jackson St, Saint Paul, MN

2011020, Aug 25, 2011

Sep 1, 2010

12/874163

Christopher T. Brown - Pittsburgh PA, US
Christophe René Gaston Grenier - Pittsburgh PA, US
Chad Landis - Oakmont PA, US
Elena E. Sheina - Pittsburgh PA, US

H01L 51/46, C08F 228/06, C08L 41/00

257 40, 526256, 524547, 257E51024

Polymers which can be used in p-type materials for organic electronic devices and photovoltaic cells. Compounds, monomers, dimers, trimers, and polymers comprising:Good photovoltaic efficiency and lifetime can be achieved. The R group can provide solubility, environmental stability, and fine tuning of spectroscopic and/or electronic properties. Different polymer microstructures can be prepared which encourage multiple band gaps and broad and strong absorptions. The carbonyl can interact with adjacent thiophene rings to provide backbone with rigidity, induce planarity, and reduce and/or eliminate intramolecular chain twisting defects. Polymers comprising benzodithiophene and/or benzothiadiazole structures can show particularly high performance.

2012015, Jun 21, 2012

Dec 14, 2011

13/326027

Christopher T. BROWN - Pittsburgh PA, US
Elena E. Sheina - Pittsburgh PA, US
Ting Xu - Pittsburgh PA, US

H01L 51/46, C09D 11/10, C07D 285/14, C08G 75/06

136263, 528 9, 524609, 548126

High performance organic photovoltaic cells based on donor acceptor polymers in the active layer. A composition comprising: at least one copolymer comprising at least one first donor moiety and at least one first acceptor moiety in the copolymer backbone, wherein the first acceptor moiety comprises at least one first ring which is bivalently linked to the copolymer backbone and at least one second ring fused to the first ring and not bivalently linked to the copolymer backbone, wherein the first ring or the second ring comprises two adjacent fluoro ring substituents, and optionally, wherein the donor comprises at least one fused ring system. High efficiency, high Voc, and a combination of both can be achieved.

2012027, Nov 1, 2012

Apr 25, 2012

13/456125

Christopher T. Brown - Pittsburgh PA, US
Venkataramanan Seshadri - Monroeville PA, US

C08L 45/00

524547, 525186

Use of certain materials in hole injection layer and/or hole transport layer can improve operational lifetimes in organic devices. Polymers having fused aromatic side groups such as polyvinylnaphthol polymers can be used in conjunction with conjugated polymers. Inks can be formulated and cast as films in organic electronic devices including OLEDs, SMOLEDs, and PLEDs. One embodiment provides a composition comprising: at least one conjugated polymer, and at least one second polymer different from the conjugated polymer comprising at least one optionally substituted fused aromatic hydrocarbon side group. The substituent can be hydroxyl. Aqueous-based inks can be formulated.

2009025, Oct 15, 2009

Apr 10, 2009

12/422159

Venkataramanan Seshadri - Pittsburgh PA, US
Christopher T. Brown - Pittsburgh PA, US
Jessica Benson-Smith - Pittsburgh PA, US
Edward S. Yang - Cheswick PA, US

H01B 1/12, H01L 51/40

252500, 438 99, 257E51027, 257 40

Use of certain materials in hole injection or hole transport layers can improve the operational lifetimes in organic electronic devices. Compositions comprising a doped conjugated polymer, doped with a redox dopant, including iodonium salt, can increase lifetimes. Inks can be formulated and cast as films in organic electronic devices including OLEDs, PHOLEDs, and OPVs. One embodiment provides a composition with a conjugated polymer doped with a redox dopant. Non-aqueous based inks can be formulated. Iodonium salts can be used.