USA As Represented by Secretary of the Navy

Alfred J Baca

William Lai

Heather A Meylemans

M Joseph Roberts

Lawrence Baldwin

John D Stenger-Smith

Lee Cambrea

Michael T Owens

Benjamin G Harvey

Andrew P Chafin

Stephen Fallis

Peter Zarras

A method for making a nanostructure includes preparing a perovskite precursor in a solvent where the perovskite concentration ranges from about 0.5M to about 1.5M. A substrate is coated in the perovskite precursor, and the perovskite precursor is annealed onto the substrate, thereby forming the nanostructure including the substrate with perovskite nanocrystal deposits.

Perovskite nanocrystal deposits

The synthesis of AgInSbased quantum dots and their use as fluorometric probes for the selective detection of nitroaromatic explosive chemicals, without the use of ligands specific to nitroaromatic explosive chemicals. These quantum dots allow the detection of nitroaromatic explosive molecules by eye. The present invention also represents a simple patterning method for quantum dots on substrates, including low cost filter paper. The ease of fabrication, use of less toxic materials, and the selectivity to nitroaromatic explosive chemicals results in a practical solution to the development of a portable fluorescent probe based on quantum dots for the detection of nitroaromatic explosive chemicals.

Metal chalcogenide quantum dots for the detection of nitroaromatic chemicals

A testing element, and methods of use therefor, for the detection of target analytes, for example metal ions and other environmental hazards, utilizing ligand functionalized fluorescent nanoparticles on a substrate. The non-toxic, air, and water stable fluorescent nanoparticles of the present invention are made from varying ratios of metals including zinc, silver, copper, and indium and sulfur. By varying the ratios of these metals nanoparticles can be synthesized that emit over a large range of the visible spectrum. Charge transfer between a target analyte and the nanoparticle is readily identified by a fluorescence change allowing for a fast, simple, visual detection system without the need for expensive analytical instrumentation. The test element can have more than one type of functionalized fluorescent nanoparticle which allows for the detection of multiple target analytes using a single test element.

Fluorescent nanoparticle test strips for heavy metal detection

An apparatus and method for the uniform dispersion of nano scaled redox particles in a conductive fiber including, combining at least one nano sized redox capable material having metal oxides and/or metals, at least one conductive binder, and at least one solvent to form electrically conductive metal imbedded fiber(s) by fiber spinning and the conductive polymeric binder having a molecular weight greater than 20,000 Daltons, and coating a substrate with the electrically conductive fiber(s) to form an active layer substrate complex having a conductivity greater than 0.05 S/cm.

High surface area nano fibers for supercapacitor devices

A material that can be used either as a standalone or coating additive that would both repel water and resist corrosion would greatly benefit the Navy. A method of making hydrophobic polymer, including combining a perylene derived monomer with a bisphenol derived monomer to produce a polymer mixture, and condensing said polymer mixture to produce a hydrophobic polymer.

Hydrophobic polymer for water proofing, anti-corrosion, and anti-fouling applications

An apparatus and method for the uniform dispersion of nano scaled redox particles in a conductive fiber including, combining at least one nano sized redox capable material having metal oxides and/or metals, at least one conductive binder, and at least one solvent to form electrically conductive metal imbedded fiber(s) by fiber spinning and the conductive polymeric binder having a molecular weight greater than 20,000 Daltons, and coating a substrate with the electrically conductive fiber(s) to form an active layer/substrate complex having a conductivity greater than 0.05 S/cm.

A method for making electronic devices based on derivatized ladder polymer (Pz-BBL) including photovoltaic modules and simple thin film transistors in planar and mechanically flexible and stretchable constructs.

Tetraamino pyrazine based ladder polymer for electroactive applications

A method for making electronic devices based on derivatized ladder polymer poly(benzo-isimidazobenzophenanthroline) (BBL) including photovoltaic modules and simple thin film transistors in planar and mechanically flexible and stretchable constructs.

Thin-film electro devices based on derivatized poly (benzo-isimidazobenzophenanthroline) ladder polymers

A wholly organic coating consisting of one or more layers of Py-BBL that is transparent in the IR region of the spectrum which is also thermally and oxdatively stable. This is coated onto IR transparent windows, domes and or optical lenses, for enhanced IR and signal filtering.

Electronically conductive infrared transparent polymer thin films

A soluble n-type copolymer that is useful in electronic and photonic devices. Embodiments of the invention include an n-type copolymer having a soluble n-type perylene copolymer having base formula A, where R is a backbone segment, where Rand Rare independently selected from the group consisting of alkyl, fluorinated alkyl, functionalized alkyl, aryl, fluorinated aryl, and functionalized aryl, and where n ranges from about 2 to 50,000. 

Solution processable perylene copolymer

A new class of polymers based upon the radialene group as the parent repeating group and characterized by the following general formula: 

Omniconjugated conductive polymers and methods for making the same

An energy harvesting device using auxetic materials includes a first auxetic conductive electrode layer. A second auxetic conductive electrode layer is associated with the first auxetic conductive electrode layer. The auxetic conductive electrode layers have negative Poisson ratios. At least one dielectric elastomer layer is associated in layered orientation between the first and second auxetic conductive electrode layers.

Growing community of inventors

Ridgecrest, CA, United States of America

Alfred J Baca