University of California

University of Southern California

Nanoclear Technologies, Inc.

California Institute of Technology

Inpi, LLC

Rehan Rashid Kapadia

Ali Javey

Harold Frank Greer

Thomas Schenkel

Arun Persaud

Constance J Chang-Hasnain

Frank Greer

Ivo Rangelow

Ryan Morrow Briggs

Khaled Ahmed

Joe Kwan

Fatemeh Rezaeifar Bayat

Angelica Saenz

Kevin Chen

David Webber

A method for forming a composite substrate containing layers of dissimilar materials is provided. The method includes a step of disposing a release layer over a base substrate where the base substrate is composed of a first material. A template layer is attached to the release layer. Characteristically, the template layer is composed of a second material and adapted to form a compound semiconductor device thereon.

Composite substrate for fabricating III-V photodetector arrays

Methods of forming a monolayer of nanoparticles are described. The method may include forming an activated surface on a substrate. Methods may also include contacting the activated surface with a fluid including nanoparticles. Methods may further include forming a plurality of monolayers in the liquid on the activated surface. The plurality of nanoparticles may include a first monolayer of nanoparticles bonded to the activated surface. The plurality of nanoparticles may include a second monolayer of nanoparticles bonded to the first monolayer of nanoparticles. The bond strengths between a nanoparticle and the underlying substrate, between adjacent nanoparticles, and between nanoparticles of adjacent monolayers may be related by a specific relationship. The method may also include removing monolayers of the plurality of monolayers while retaining the first monolayer to form the substrate with the first monolayer. Systems for performing the methods and substrates resulting from the methods are also described.

Monolayer deposition of nanoparticles

A photonic electron emission device includes an emitter, a photonic energy conduit evanescently coupled to the emitter, and an anode. The emitter includes a component selected from the group consisting of a metal, a semimetal, a semiconductor having a bandgap that is less than about 3.5 eV. The anode is positively biased with respect to the emitter, the anode directing electrons emitted from the emitter.

Optical modulation of on-chip thermionic emission using resonant cavity coupled electron emitters

The physical and chemical properties of surfaces can be controlled by bonding nanoparticles, microspheres, or nanotextures to the surface via inorganic precursors. Surfaces can acquire a variety of desirable properties such as antireflection, antifogging, antifrosting, UV blocking, and IR absorption, while maintaining transparency to visible light. Micro or nanomaterials can also be used as etching masks to texture a surface and control its physical and chemical properties via its micro or nanotexture.

Methods and systems to boost efficiency of solar cells

This disclosure provides systems, methods, and apparatus related to the growth of single crystal III-V semiconductors on amorphous substrates. In one aspect, a shape of a semiconductor structure to be formed on an amorphous substrate is defined in a resist disposed on the amorphous substrate. A boron group element is deposited over the amorphous substrate. A ceramic material is deposited on the boron group element. The resist is removed from the amorphous substrate. The ceramic material is deposited to cover the boron group element. The amorphous substrate and materials deposited thereon are heated in the presence of a gas including a nitrogen group element to grow a single crystal semiconductor structure comprising the boron group element and the nitrogen group element.

Growth of single crystal III-V semiconductors on amorphous substrates

A neutron generator includes a conductive substrate comprising a plurality of conductive nanostructures with free-standing tips and a source of an atomic species to introduce the atomic species in proximity to the free-standing tips. A target placed apart from the substrate is voltage biased relative to the substrate to ionize and accelerate the ionized atomic species toward the target. The target includes an element capable of a nuclear fusion reaction with the ionized atomic species to produce a one or more neutrons as a reaction by-product.

Compact ion source neutron generator

An ion source includes a conductive substrate, the substrate including a plurality of conductive nanostructures with free-standing tips formed on the substrate. A conductive catalytic coating is formed on the nanostructures and substrate for dissociation of a molecular species into an atomic species, the molecular species being brought in contact with the catalytic coating. A target electrode placed apart from the substrate, the target electrode being biased relative to the substrate with a first bias voltage to ionize the atomic species in proximity to the free-standing tips and attract the ionized atomic species from the substrate in the direction of the target electrode.

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Los Angeles, CA, United States of America

Rehan Rashid Kapadia