Florida State University Research Foundation, Inc.

University of Southern California

University of Michigan

Princeton University

University of Florida Research Foundation Inc

Universal Display Corporation

Kenneth Hanson

Mark Edward Thompson

Stephen R Forrest

Peter I Djurovich

Viacheslav V Diev

Arnold Tamayo

Yiru Sun

Carsten Borek

Thomas Edward Schoenzart

Sahan Salpage

Jeramy David Zimmerman

Fernando Javier Uribe-Romo

Suliman A Ayad

Matthew W Logan

Suliman Ayad

Jamie Wang

Drake Beery

Victoria A Posey

Sean Hill

Tanmay Banerjee

Eugenia Stanisauskis

William Oates

Tristan Dilbeck

Omotola Ogunsolu

Thomas E Albrecht-Schmitt

Photopolymers, monomers, compositions including photopolymers and a dopant, and methods, including methods for eliciting a photomechanical response. The dopant may be a triplet sensitizing dopant. The exposing of compositions to the one or more wavelengths of electromagnetic radiation may elicit a photomechanical response via a triplet excited state mechanism.

Photomechanical polymers, compositions, and methods

Provided herein are photochemical separations. The methods herein can include exposing a first metal complex and a second metal complex to light to facilitate an irreversible chemical reaction to form a modified first metal complex. The modified first metal complex then may be separated from the second metal complex. Compositions also are provided.

Photochemical separations and compositions

Disclosed herein are metal-organic frameworks and methods of making and use thereof.

Photo-redox titanium containing organic frameworks and methods of making and use thereof

Transmission of low energy light is one of the primary loss mechanisms of a single junction solar cell. Molecular photon upconversion via triplet-triplet annihilation (TTA-UC)&#x2014;combining two or more low energy photons to generate a higher energy excited state&#x2014;is an intriguing strategy to surpass this limit. The present disclosure is directed to self-assembled multilayers, e.g., bi- or trilayers, on metal oxide surfaces as a strategy to facilitate TTA-UC emission and demonstrate direct charge separation of the upconverted state. A three-fold enhancement in transient photocurrent is achieved at light intensities as low as two equivalent suns. The multilayer structure comprises a substrate comprising a metal oxide surface and a bulk region, and a self-assembled bilayer film, the bilayer film comprising: (a) an acceptor molecule covalently bonded to the metal oxide surface; (b) a linking metal ion bonded to the acceptor molecule; and (c) one or more sensitizer molecule(s) bonded to the linking coordinating metal ion.

Molecular photon upconversion using organic-inorganic hybrid interfaces

Forward and back electron transfer at molecule oxide interfaces are pivotal events in dye-sensitized solar cells, dye-sensitized photoelectrosynthesis cells and other applications. Disclosed herein are self-assembled multilayers as a strategy for manipulating electron transfer dynamics at these interfaces. The multilayer films are achieved by stepwise layering of bridging molecules, linking ions, and active molecule on an oxide surface. The formation of the proposed architecture is supported by ATR-IR and UV-Vis spectroscopy. Time-resolved emission and transient absorption establishes that the films exhibit an exponential decrease in electron transfer rate with increasing bridge length. The findings indicate that self-assembled multilayers offer a simple, straight forward and modular method for manipulating electron transfer dynamics at dye-oxide interfaces.

Modulating electron transfer dynamics at hybrid interfaces via self-assembled multilayers

Provided herein are methods of altering enantiomeric excess. The methods may include irradiating an atropisomer that includes at least one chiral substituent to alter the enantiomeric excess of the atropisomer. The at least one chiral substituent may be removed following irradiation.

Atropisomers and methods of altering enantiomeric excess

A compound that can be used as a donor material in organic photovoltaic devices comprising a non-activated porphyrin fused with one or more non-activated polycyclic aromatic rings or one or more non-activated heterocyclic rings can be obtained by a thermal fusion process. The compounds include those having the following structure  By heating the reaction mixture of non-activated porphyrins with non-activated polycyclic aromatic rings or heterocyclic rings to a fusion temperature and holding for a predetermined time, fusion of one or more polycyclic rings or heterocyclic rings to the non-activated porphyrin core in meso,&#x3b2; fashion is achieved resulting in hybrid structures containing a distorted porphyrin ring with annulated aromatic rings. The porphyrin core can be olygoporphyrins.

Fusing porphyrins with polycyclic aromatic hydrocarbons and heterocycles for optoelectronic applications

The present invention provides a new class of excited state intramolecular charge transfer (ESIPT) dye compounds based on mono or dihydroxy substituted 1,3-bisiminoisoindole motif and metal complexes containing such compounds as ligands. The present invention also provides OLEDs containing the compound and/or metal complex as the emissive material.

Fluorescent isoindoline dyes

A compound that can be used as a donor material in organic photovoltaic devices comprising a non-activated porphyrin fused with one or more non-activated polycyclic aromatic rings or one or more non-activated heterocyclic rings can be obtained by a thermal fusion process. The compounds can include structures of Formula I: By heating the reaction mixture of non-activated porphyrins with non-activated polycyclic aromatic rings or heterocyclic rings to a fusion temperature and holding for a predetermined time, fusion of one or more polycyclic rings or heterocyclic rings to the non-activated porphyrin core in meso,&#x3b2; fashion is achieved resulting in hybrid structures containing a distorted porphyrin ring with annulated aromatic rings. The porphyrin core can be olygoporphyrins.

Porphyrin compounds are provided. The compounds may further comprise a fused polycyclic aromatic hydrocarbon or a fused heterocyclic aromatic. Fused polycyclic aromatic hydrocarbon s and fused heterocyclic aromatics may extend and broaden absorption, and modify the solubility, crystallinity, and film-forming properties of the porphyrin compounds. Additionally, devices comprising porphyrin compounds are also provided. The porphyrin compounds may be used in a donor/acceptor configuration with compounds, such as C.

Visible/near-infrared porphyrin-tape/C60 organic photodetectors

Certain iridium compounds which may comprise an iridium(III)-ligand complex having the general formula: (C^N)&#x2014;Ir&#x2014;(N^N). (C^N) and (N^N) may each represent a ligand coordinated to an iridium atom. The iridium compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-infrared (IR) range. Also, organic devices that use certain iridium compounds. The organic device may comprise an organic layer and the organic layer may comprise any of the iridium compounds disclosed herein. Also, organic devices that use certain metalloporphyrin compounds. The metalloporphyrin compounds may comprise a core porphyrin structure with four pyrrole rings. The metalloporphyrin compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-IR range.

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Tallahassee, FL, United States of America

Kenneth Hanson