A voltage tunable solar-blind UV detector using a EG/SiC heterojunction based Schottky emitter bipolar phototransistor with EG grown on p-SiC epi-layer using a chemically accelerated selective etching process of Si using TFS precursor.

Using processes disclosed herein, materials and structures are created and used. For example, processes can include melting boron nitride or amorphous carbon into an undercooled state followed by quenching. Exemplary new materials disclosed herein can be ferromagnetic and/or harder than diamond. Materials disclosed herein may include dopants in concentrations exceeding thermodynamic solubility limits. A novel phase of solid carbon has structure different than diamond and graphite.

Using processes disclosed herein, materials and structures are created and used. For example, processes can include melting boron nitride or amorphous carbon into an undercooled state followed by quenching. Exemplary new materials disclosed herein can be ferromagnetic and/or harder than diamond. Materials disclosed herein may include dopants in concentrations exceeding thermodynamic solubility limits. A novel phase of solid carbon has structure different than diamond and graphite.

Using processes disclosed herein, materials and structures are created and used. For example, processes can include melting boron nitride or amorphous carbon into an undercooled state followed by quenching. Exemplary new materials disclosed herein can be ferromagnetic and/or harder than diamond. Materials disclosed herein may include dopants in concentrations exceeding thermodynamic solubility limits. A novel phase of solid carbon has structure different than diamond and graphite.

Using processes disclosed herein, materials and structures are created and used. For example, processes can include melting boron nitride or amorphous carbon into an undercooled state followed by quenching. Exemplary new materials disclosed herein can be ferromagnetic and/or harder than diamond. Materials disclosed herein may include dopants in concentrations exceeding thermodynamic solubility limits. A novel phase of solid carbon has structure different than diamond and graphite.

Using processes disclosed herein, materials and structures are created and used. For example, processes can include melting boron nitride or amorphous carbon into an undercooled state followed by quenching. Exemplary new materials disclosed herein can be ferromagnetic and/or harder than diamond. Materials disclosed herein may include dopants in concentrations exceeding thermodynamic solubility limits. A novel phase of solid carbon has structure different than diamond and graphite.

Using processes disclosed herein, materials and structures are created and used. For example, processes can include melting boron nitride or amorphous carbon into an undercooled state followed by quenching. Exemplary new materials disclosed herein can be ferromagnetic and/or harder than diamond. Materials disclosed herein may include dopants in concentrations exceeding thermodynamic solubility limits. A novel phase of solid carbon has structure different than diamond and graphite.

Provided is a method of producing isolated graphene sheets directly from a carbon/graphite precursor. The method comprises: (a) providing a mass of aromatic molecules wherein the aromatic molecules are selected from petroleum heavy oil or pitch, coal tar pitch, a polynuclear hydrocarbon, or a combination thereof; (b) heat treating this mass and using chemical or mechanical means to form graphene domains dispersed in a disordered matrix of carbon or hydrocarbon molecules, wherein the graphene domains are each composed of from 1 to 30 planes of hexagonal carbon atoms or fused aromatic rings having a length or width from 5 nm to 20 m and an inter-graphene space between two planes of hexagonal carbon atoms or fused aromatic rings no less than 0.4 nm; and (c) separating and isolating the planes of hexagonal carbon atoms or fused aromatic rings to recover graphene sheets from the disordered matrix.

Provided is a method of producing isolated graphene sheets directly from a carbon/graphite precursor. The method comprises: (a) providing a mass of aromatic molecules wherein the aromatic molecules are selected from petroleum heavy oil or pitch, coal tar pitch, a polynuclear hydrocarbon, or a combination thereof; (b) heat treating this mass and using chemical or mechanical means to form graphene domains dispersed in a disordered matrix of carbon or hydrocarbon molecules, wherein the graphene domains are each composed of from 1 to 30 planes of hexagonal carbon atoms or fused aromatic rings having a length or width from 5 nm to 20 m and an inter-graphene space between two planes of hexagonal carbon atoms or fused aromatic rings no less than 0.4 nm; and (c) separating and isolating the planes of hexagonal carbon atoms or fused aromatic rings to recover graphene sheets from the disordered matrix.

A method of fabricating a multicolor light-emitting diode (LED) display includes forming a first LED layer on a first release layer comprising a first two-dimensional (2D) material disposed on a first substrate. The first LED layer is configured to emit light at a first wavelength. The method also includes transferring the first LED layer from the first release layer to a host substrate and forming a second LED layer on a second release layer comprising a second 2D material disposed on a second substrate. The second LED layer is configured to emit light at a second wavelength. The method also includes removing the second LED layer from the second release layer and disposing the second LED layer on the first LED layer.