University of California

Other

US Government As Represented by the Secretary of the Army

Mitsubishi Chemical Corporation

Merck Patent Gmbh

Guillermo C Bazan

Bin Liu

Brent S Gaylord

Shu Wang

Alan J Heeger

Thuc-Quyen Nguyen

Lei Ying

Daniel Moses

Gregory C Welch

Xiong Gong

Wanli Ma

Alexander Mikhailovsky

Michael J Ford

Ben B Y Hsu

Hsin-Rong Tseng

Parameswar K Iyer

Ming Wang

Jeffrey Peet

Prasenjit Ghosh

Hadjar Benmansour

Janice W Hong

Hengbin Wang

Corey Vernon Hoven

Peter Zalar

Wen Wen

Christopher J Takacs

Russell A Gaudiana

David P Waller

Christoph Brabec

Yoshiharu Sato

Edward J Kramer

Jason D Azoulay

Rachel A Segalman

Cesare Soci

Atsushi Hotta

Motoyuki Shigeiwa

Michael J Mahan

Douglas M Heithoff

Yuan Zhang

Jacek Ostrowski

Robert C Coffin

Martin Seifrid

Bernhard Koehler

Jaewon Lee

James J Sumner

Colin Richard Bridges

Markus Koppe

Zhao Chen

Markus Scharber

Rene' Rojas

Monica Katiyar

Fumihiko Shimizu

Glenn H Frederickson

T Kojima

Matthew R Robinson

Benjamin R Luginbuhl

Shujun Wang

Zichao Zhang

Shuuichi Maeda

Alex Moreland

Jakkarin Limwongyut

Chenyao Nie

Logan E Garner

Soe-Jin Ko

Thomas S Van Der Poll

John Love

Huaping Li

Yunhua Xu

Jeff Peet

Yanika Schneider

Jae Kwan Lee

Mauro Morana

Yaofeng Chen

Steve Diamanti

Jianfei Huang

Cheng-Kang Mai

Vikram Khanna

Yan Shao

Takeshi Shioya

Han Young Woo

Hideki Gorohmaru

Bin National University Of Singapore Liu

Prasenjit Department Of Chemistry Ghosh

Rene Rojas

Small organic molecule chromophores containing a benzo[c][1,2,5]thiadiazole with an electron-withdrawing substituent W in the 5-position (5BTH), benzo[c][1,2,5]oxadiazole with an electron-withdrawing substituent W in the 5-position (5BO), 2H-benzo[d][1,2,3]triazole (5BTR) with an electron-withdrawing substituent W in the 5-position (5BTR), 5-fluorobenzo[c][1,2,5]thiadiazole (FBTH), 5-fluorobenzo[c][1,2,5]oxadiazole (FBO), or 5-fluoro-2H-benzo[d][1,2,3]triazole (FBTR) core structure are disclosed. Such compounds can be used in organic heterojunction devices, such as organic small molecule solar cells and transistors.

Inert solution-processable molecular chromophores for organic electronic devices

Narrow bandgap n-type small molecules are attracting attention in the near-infrared organic optoelectronics field, due to their easy tunable energy band with a molecular design flexibility. However, only a few reports demonstrate narrow bandgap non-fullerene acceptors (NFAs) that perform well in organic solar cells (OSCs), and the corresponding benefits of NFA photodiodes have not been well investigated in organic photodetectors (OPDs). Here, the ultra-narrow bandgap NFAs CO1-4F, CO1-4Cl and o-IO1 were designed and synthesized for the achieved efficient near-infrared organic photodiodes such as solar cells and photodetectors. Designing an asymmetrical CO1-4F by introducing two different π-bridges including alkylthienyl and alkoxythienyl units ultimately provides an asymmetric A-D′-D-D″-A molecular configuration. This enables a delicate modulation in energy band structure as well as maintains an intense intramolecular charge transfer characteristic of the excited state.

Organic solar cell and photodetector materials and devices

Light harvesting luminescent multichromophores that are configured upon excitation to transfer energy to, and amplify the emission from, an acceptor signaling chromophore in energy-receiving proximity therewith are provided. Also provided are compositions for labelling a target. The labelling composition may include a donor light harvesting multichromophore and an acceptor signaling chromophore in energy-receiving proximity to the donor light harvesting multichromophore. Also provided is an aqueous composition for labelling a target, including: a donor light harvesting multichromophore; an acceptor signaling chromophore in energy-receiving proximity therewith; and a sensor biomolecule. Methods for using the subject compositions are also provided.

Light harvesting multichromophore compositions and methods of using the same

Compositions and methods of making and using thereof are provided with a specific antimicrobial activity and efficacy toward Gram-positive and Gram-negative bacteria and low levels of toxicity toward mammalian cells. The compositions include water-soluble molecules characterized by a hydrophobic interior fragment and side groups containing cationic groups. A class of these molecules is provided with variations in the length of the internal conjugated segment and in other molecular features, which impact the efficacy and toxicity. The substituents on the cationic functional group, the structural variations on the solubilizing group, and the length of the conjugated segment are important features affecting the antimicrobial property and the non-toxicity to mammalian cells of the composition.

Short conjugated oligoelectrolytes and uses thereof

Organic devices comprising an organic semiconducting acceptor motif coupled to a donor motif. Examples include IOTIC-2F, ITOTIC-2F, COTIC-4F, and SiOTIC-4F as acceptor materials. The acceptor materials have narrow bandgap (1.1 eV-1.3 eV), strong near-IR absorption and high solar cell EQE in near infrared (IR) region. The acceptor materials may also be used as the absorbing/light sensitive region in an IR photodetector.

Narrow bandgap non-fullerene acceptors and devices including narrow bandgap non-fullerene acceptors

Methods compositions and articles of manufacture for assaying a sample for a target polynucleotide are provided. A sample suspected of containing the target polynucleotide is contacted with a polycationic multichromophore and a sensor polynucleotide complementary to the target polynucleotide. The sensor polynucleotide comprises a signaling chromophore to receive energy from the excited multichromophore and increase emission in the presence of the target polynucleotide. The methods can be used in multiplex form. Kits comprising reagents for performing such methods are also provided.

Methods and compositions for detection and analysis of polynucleotides using light harvesting multichromophores

Small organic molecule semi-conducting chromophores containing a pyridalthiadiazole, pyridaloxadiazole, or pyridaltriazole core structure are disclosed. Such compounds can be used in organic heterojunction devices, such as organic small molecule solar cells and transistors.

Organic small molecule semiconducting chromophores for use in organic electronic devices

Four conjugated copolymers with a donor/acceptor architecture including 4,4-dihexadecyl-4H-cyclopenta[1,2-b:5,4-b']dithiophene as the donor structural unit and benzo[2,1,3]thiodiazole fragments with varying degrees of fluorination have been synthesized and characterized. It has been shown that the HOMO levels were decreased after the fluorine substitution. The field-effect charge carrier mobility was similar for all polymers with less than an order of magnitude difference between different acceptor units.

Fluorine substitution influence on benzo[2,1,3]thiodiazole based polymers for field-effect transistor applications

Methods, compositions and articles of manufacture for assaying a sample for a target polynucleotide are provided. A sample suspected of containing the target polynucleotide is contacted with a polycationic multichromophore and a sensor polynucleotide complementary to the target polynucleotide. The sensor polynucleotide comprises a signaling chromophore to receive energy from the excited multichromophore and increase emission in the presence of the target polynucleotide. The methods can be used in multiplex form. Kits comprising reagents for performing such methods are also provided.

The present disclosure describes additives that attenuate a specific transport channel in ambipolar semiconductors to achieve unipolar characteristics. Carrier selective traps are included in the ambipolar semiconductors and are chosen on the basis of energetic preferences for holes or electrons and the relative positions of the molecular orbital energies of host polymer and the dopants. In one embodiment, a composition of matter useful as a current transport region in an organic semiconductor device comprises a semiconducting polymer; and means for accepting holes (e.g., a hole trapping compound) injected into the current transport region so as to impede conduction of the holes in the semiconducting polymer. This simple solution-processable method can improve the on and off current ratios (I/I) of OFETs by up to three orders of magnitude. Moreover, the treatment yields tailored blends that can be used to fabricate complementary inverters with excellent gain and low-power characteristics.

Organic semiconductor solution blends for switching ambipolar transport to N-type transport

A method of regioselectively preparing a pyridine-containing compound is provided. In particular embodiments, the method includes reacting halogen-functionalized pyridal[2,1,3]thiadiazole with organotin-functionalized cyclopenta[2,1-b:3,4-b']dithiophene or organotin-functionalized indaceno[2,1-b:3,4-b&#x2032;]dithiophene. Also provided is a method of preparing a polymer. The method includes regioselectively preparing a monomer that includes a pyridal[2,1,3]thiadiazole unit; and reacting the monomer to produce a polymer that includes a regioregular conjugated backbone section, wherein the section includes a repeat unit containing the pyridal[2,1,3]thiadiazole unit. A polymer that includes a regioregular conjugated backbone section, and electronic devices that include the polymer, are also provided.

Regioregular pyridal[2,1,3]thiadiazole &#x3c0;-conjugated copolymers for organic semiconductors

Growing community of inventors

Santa Barbara, CA, United States of America

Guillermo C Bazan