Abstract: A nanoparticle and a method for fabricating the nanoparticle utilize a decomposable material yoke located within permeable organic polymer material shell and separated from the permeable organic polymer material shell by a void space. When the decomposable material yoke comprises a sulfur material and the permeable organic polymer material shell comprises a material permeable to both a sulfur material vapor and a lithium ion within a battery electrolyte the nanoparticle may be used within an electrode for a Li/S battery absent the negative effects of battery electrode materials expansion.

Abstract: A nanoparticle and a method for fabricating the nanoparticle utilize a decomposable material yoke located within permeable organic polymer material shell and separated from the permeable organic polymer material shell by a void space. When the decomposable material yoke comprises a sulfur material and the permeable organic polymer material shell comprises a material permeable to both a sulfur material vapor and a lithium ion within a battery electrolyte the nanoparticle may be used within an electrode for a Li/S battery absent the negative effects of battery electrode materials expansion.

Abstract: Provided are poly(arylamine)s. The polymers can be redox active. The polymers can be used as electrode materials in, for example, electrochemical energy storage systems. The polymers can be made by electropolymerization on a conducting substrate (e.g., a current collector).

Abstract: A nanoparticle and a method for fabricating the nanoparticle utilize a decomposable material yoke located within permeable organic polymer material shell and separated from the permeable organic polymer material shell by a void space. When the decomposable material yoke comprises a sulfur material and the permeable organic polymer material shell comprises a material permeable to both a sulfur material vapor and a lithium ion within a battery electrolyte the nanoparticle may be used within an electrode for a Li/S battery absent the negative effects of battery electrode materials expansion.

Abstract: A nanoparticle and a method for fabricating the nanoparticle utilize a decomposable material yoke located within permeable organic polymer material shell and separated from the permeable organic polymer material shell by a void space. When the decomposable material yoke comprises a sulfur material and the permeable organic polymer material shell comprises a material permeable to both a sulfur material vapor and a lithium ion within a battery electrolyte the nanoparticle may be used within an electrode for a Li/S battery absent the negative effects of battery electrode materials expansion.

Abstract: A nanoparticle and a method for fabricating the nanoparticle utilize a decomposable material yoke located within permeable organic polymer material shell and separated from the permeable organic polymer material shell by a void space. When the decomposable material yoke comprises a sulfur material and the permeable organic polymer material shell comprises a material permeable to both a sulfur material vapor and a lithium ion within a battery electrolyte the nanoparticle may be used within an electrode for a Li/S battery absent the negative effects of battery electrode materials expansion.

Abstract: Electropolymerized polymer or copolymer films on a conducting substrate (e.g., graphene) and methods of making such films. The films may be part of multilayer structures. The films can be formed by anodic or cathodic electropolymerization of monomers. The films and structures (e.g., multilayer structures) can be used in devices such as, for example, electrochromic devices, electrical-energy storage devices, photo-voltaic devices, field-effect transistor devices, electrical devices, electronic devices, energy-generation devices, and microfluidic devices.

Abstract: A solar flow battery comprising: a positive compartment containing at least one positive electrode in contact with a positive electrolyte containing a first redox active molecule; a negative compartment containing at least one negative electrode in contact with a negative electrolyte containing a second redox active molecule, wherein said first and second redox active molecules remain dissolved in solution when changed in oxidation state; at least one of said negative or positive electrodes comprises a semiconductor light absorber; electrical communication means between said electrodes and an external load for directing electrical energy into or out of said solar flow battery; a separator component that separates the positive and negative electrolytes while permitting the passage of non-redox-active species; and means for establishing flow of the positive and negative electrolyte solutions past respective electrodes.

Abstract: A redox flow battery comprising: a positive compartment containing a positive electrode in contact with a liquid electrolyte comprised of an organic redox active molecule dissolved in a solvent; a negative compartment containing a negative electrode in contact with a liquid electrolyte comprised of said organic redox active molecule dissolved in a solvent; electrical communication means for establishing electrical communication between said positive electrode, said negative electrode and an external load for directing electrical energy into or out of said symmetric redox flow battery; a separator component that separates the electrolyte solutions in the positive and negative compartments while permitting the passage of non-redox-active species between electrolyte solutions in positive and negative compartments; and means capable of establishing flow of the electrolyte solutions past said positive and negative electrodes, respectively.

Abstract: A nanoparticle and a method for fabricating the nanoparticle utilize a decomposable material yoke located within permeable organic polymer material shell and separated from the permeable organic polymer material shell by a void space. When the decomposable material yoke comprises a sulfur material and the permeable organic polymer material shell comprises a material permeable to both a sulfur material vapor and a lithium ion within a battery electrolyte the nanoparticle may be used within an electrode for a Li/S battery absent the negative effects of battery electrode materials expansion.

Abstract: A redox flow battery comprising: a positive compartment containing a positive electrode in contact with a liquid electrolyte comprised of an organic redox active molecule dissolved in a solvent; a negative compartment containing a negative electrode in contact with a liquid electrolyte comprised of said organic redox active molecule dissolved in a solvent; electrical communication means for establishing electrical communication between said positive electrode, said negative electrode and an external load for directing electrical energy into or out of said symmetric redox flow battery; a separator component that separates the electrolyte solutions in the positive and negative compartments while permitting the passage of non-redox-active species between electrolyte solutions in positive and negative compartments; and means capable of establishing flow of the electrolyte solutions past said positive and negative electrodes, respectively.

Abstract: A solar flow battery comprising: a positive compartment containing at least one positive electrode in contact with a positive electrolyte containing a first redox active molecule; a negative compartment containing at least one negative electrode in contact with a negative electrolyte containing a second redox active molecule, wherein said first and second redox active molecules remain dissolved in solution when changed in oxidation state; at least one of said negative or positive electrodes comprises a semiconductor light absorber; electrical communication means between said electrodes and an external load for directing electrical energy into or out of said solar flow battery; a separator component that separates the positive and negative electrolytes while permitting the passage of non-redox-active species; and means for establishing flow of the positive and negative electrolyte solutions past respective electrodes.

Abstract: Electropolymerized polymer or copolymer films on a conducting substrate (e.g., graphene) and methods of making such films. The films may be part of multilayer structures. The films can be formed by anodic or cathodic electropolymerization of monomers. The films and structures (e.g., multilayer structures) can be used in devices such as, for example, electrochromic devices, electrical-energy storage devices, photo-voltaic devices, field-effect transistor devices, electrical devices, electronic devices, energy-generation devices, and microfluidic devices.

Abstract: The invention teaches electrospun light-emitting fibers made from ionic transition metal complexes (‘iTMCs”) such as [Ru(bpy)3]2+(PF6?)2]/PEO mixtures with dimensions in the 10.0 nm to 5.0 micron range and capable of highly localized light emission at low operating voltages such as 3-4 V with turn-on voltages approaching the band-gap limit of the organic semiconductor that may be used as point source light emitters on a chip.

Abstract: The invention teaches electrospun light-emitting fibers made from ionic transition metal complexes (“iTMCs”) such as [Ru(bpy)3]2+(PF6.)2]/PEO mixtures with dimensions in the 10.0 nm to 5.0 micron range and capable of highly localized light emission at low operating voltages such as 3-4 V with turn-on voltages approaching the band-gap limit of the organic semiconductor that may be used as point source light emitters on a chip.

Abstract: A cascaded light emitting device. The cascaded light emitting device includes: a base electrode formed of a base electrode material and electrically coupled to a base voltage lead; a top electrode layer formed of a top electrode material and electrically coupled to a top voltage lead; a number of electroluminescent layers arranged between and electrically coupled to the base electrode and top electrode layer; and at least one middle electrode layer formed of a middle electrode material. Each of the middle electrodes is coupled between two juxtaposed electroluminescent layers. The electroluminescent layers include a mixed conductor that luminesces with a peak wavelength.

Abstract: A cascaded light emitting device. The cascaded light emitting device includes: a base electrode formed of a base electrode material and electrically coupled to a base voltage lead; a top electrode layer formed of a top electrode material and electrically coupled to a top voltage lead; a number of electroluminescent layers arranged between and electrically coupled to the base electrode and top electrode layer; and at least one middle electrode layer formed of a middle electrode material. Each of the middle electrodes is coupled between two juxtaposed electroluminescent layers. The electroluminescent layers include a mixed conductor that luminesces with a peak wavelength.

Abstract: A cascaded light emitting device. The cascaded light emitting device includes: a base electrode formed of a base electrode material and electrically coupled to a base voltage lead; a top electrode layer formed of a top electrode material and electrically coupled to a top voltage lead; a number of electroluminescent layers arranged between and electrically coupled to the base electrode and top electrode layer; and at least one middle electrode layer formed of a middle electrode material. Each of the middle electrodes is coupled between two juxtaposed electroluminescent layers. The electroluminescent layers include a mixed conductor that luminesces with a peak wavelength.

Abstract: The invention teaches electrospun light-emitting fibers made from ionic transition metal complexes (“iTMCs”) such as [Ru(bpy)3]2+(PF6.)2]/PEO mixtures with dimensions in the 10.0 nm to 5.0 micron range and capable of highly localized light emission at low operating voltages such as 3-4 V with turn-on voltages approaching the band-gap limit of the organic semiconductor that may be used as point source light emitters on a chip.

Abstract: The invention is directed to intermetallic compounds for use as catalysts for chemical reactions and catalytic systems. The structure of ordered intermetallic compounds enables such compounds to function as highly efficient catalysts. The ordered intermetallic compounds may be used to catalyze reactions in fuel cells (e.g., hydrogen fuel cells), amongst numerous other applications.