University of Southern California

University of California

California Institute of Technology

Purdue Research Foundation

Northwestern University

Government of the United States of America, as Represented by the Secretary of Commerce

University of Jeddah

Aneeve LLC

Chongwu Zhou

Koungmin Ryu

Alexander Badmaev

Chuan Wang

Mark Edward Thompson

Xiaolei Liu

Daihua Zhang

Yi Zhang

Evgueni Polikarpov

James Ly

Cody Schlenker

Qingzhou Liu

Lewis Gomez De Arco

Tobin Jay Marks

Antonio Facchetti

Richard J Cote

David B Janes

Kosmas Galatsis

Peide Ye

Ming Zheng

Allen S Yang

Hsiao-Kang Chang

Chenfei Shen

Ahmad Abbas

PoChiang Chen

Liang Chen

Xin Fang

Sanghyun Ju

Mingyuan Ge

Jiepeng Rong

Mohammed R Amer

Yuchi Che

Ahmad N Abbas

Akshay Kumar

Xuan Cao

Paul David Asimow

Luyao Zhang

Mervat Alharbi

Pochiang Chen

Anyi Zhang

Yihang Liu

Hui Gui

Yue Fu

Jason K Streit

Yuqiang Ma

Angela R Hight Walker

Fumiaki Ishikawa

Conformable and wearable sensors with integrated on-chip gate for the detection of biomolecules, chemicals, and other substrates and applications thereof are provided. Biosensor chips can be built with In2O3 nanoribbon field-effect transistors. Biosensor chips can conform to features of a human body, enabling ability for individuals to wear a biosensor.

Wearable biosensors and applications thereof

A method for forming an anode of a sodium ion battery includes a step of heat treating the red phosphorus precursor and reduced graphene oxide powder at a first temperature that vaporizes the red phosphorus precursor such that red phosphorus structures grow on the reduced graphene oxide powder. Another method for forming an anode of a sodium ion battery includes steps of placing a red phosphorus precursor and a graphene oxide precursor in a reaction chamber; establishing a reducing environment in the reaction chamber; and heating the red phosphorus precursor and a graphene oxide precursor to a first temperature that is sufficient temperature to form a composite of red phosphorus and reduced graphene oxide. Characteristically, red phosphorus deposition and graphene oxide reduction are completed simultaneously in a single-step heat treatment. A method for making a black phosphorus-composite for sodium-ion batter anodes is also provided.

Anodes for sodium-ion batteries

A method of separating and extracting carbon nanotubes, the method includes introducing the carbon nanotubes into a two-phase system that includes a first component and a second component, the first component being different from the second component. The method includes introducing a chemical agent into the two-phase system, mixing the chemical agent and the carbon nanotubes in the two-phase system, removing the first component to extract a first portion of the carbon nanotubes contained in the first component after the mixing, replenishing the two-phase system with fresh first component, and extracting a second portion of the carbon nanotubes contained in the fresh first component. A bandgap of the carbon nanotubes in the first portion is different from the bandgap of the carbon nanotubes in the second portion.

Redox sorting of carbon nanotubes

The inventors experimentally demonstrated NOgas sensing performance of multilayer black phosphorous (BP) field effect transistors. The BP sensors were sensitive to NOconcentration down to 5 ppb making them comparable in sensitivity to the best 2D material based sensors. Raman spectroscopy comparison revealed no apparent change in the spectra before and after exposure to NO, which shows that thick BP flakes can maintain their relative stability after sensing. Moreover, the BP device sensing performance fitted well with the Langmuir Isotherm for molecules adsorbed on a surface, which confirms charge transfer as the dominant mechanism for sensing. The systematic increase in conductance with increasing NOconcentrations suggests NOmolecules withdraw electrons and dope BP flakes with holes. These results lay the ground work for BP to be applied to various sensing applications including chemical, gas, and bio-sensors.

Black phosphorus gas sensor

An electrode includes a first free-standing carbon network, an active material deposited above the first free-standing carbon network, and a second free-standing carbon network covering the active material. The first and second carbon networks are a binder, a conductive additive and a current collector to the electrode.

Free-standing active material/carbon nanomaterial network film as light-weight and high-power electrodes for lithium ion batteries

A method for growing a graphene layer on a metal foil includes placing a vessel into a chemical vapor deposition chamber, the vessel having a metal foil positioned therein. The method includes evacuating the chemical vapor deposition chamber, introducing hydrogen gas into the chamber to achieve a first pressure less than atmospheric pressure, heating the atmosphere in the chamber to anneal the metal foil, introducing methane and hydrogen into the chamber to achieve a second pressure less than atmospheric pressure.

Vapor-trapping growth of single-crystalline graphene flowers

The subject technology relates to a method including steps for disposing a first electrically conductive material on a substrate to form a first layer of electrodes on the substrate, wherein the first layer includes a source electrode and a drain electrode, and printing a film including carbon nanotubes between the source electrode and the drain electrode, thereby defining at least a first interface between the carbon nanotube film and the source electrode and a second interface between the carbon nanotube film and drain electrode. In certain aspects, the method can further include steps for disposing a second electrically conductive material over the first interface between the carbon nanotube film and the source electrode and the second interface between the carbon nanotube film and the drain electrode. In certain aspects, a transistor device is also provided.

Fully-printed carbon nanotube thin film transistor circuits for organic light emitting diode

Methods, materials and apparatus are described for synthesizing a monolayer or few-layers of graphene. Depositing the graphene can include, in some implementations, flowing hydrogen and carbon feedstock over a catalytic layer formed on a substrate.

Synthesis of graphene by chemical vapor deposition

RF transistors are fabricated at complete wafer scale using a nanotube deposition technique capable of forming high-density, uniform semiconducting nanotube thin films at complete wafer scale, and electrical characterization reveals that such devices exhibit gigahertz operation, linearity, and large transconductance and current drive.

Radio frequency devices based on carbon nanomaterials

Methods and devices for transparent electronics are disclosed. According to an embodiment, transparent electronics are provided based on transfer printed carbon nanotubes that can be disposed on both rigid and flexible substrates. Methods are provided to enable highly aligned single-walled carbon nanotubes (SWNTs) to be used in transparent electronics for achieving high carrier mobility while using low-temperature processing. According to one method, highly aligned nanotubes can be grown on a first substrate. Then, the aligned nanotubes can be transferred to a rigid or flexible substrate having pre-patterned gate electrodes. Source and drain electrodes can be formed on the transferred nanotubes. The subject devices can be integrated to provide logic gates and analog circuitry for a variety of applications.

Transparent electronics based on transfer printed carbon nanotubes on rigid and flexible substrates

An electrode for use in an organic optoelectronic device is provided. The electrode includes a thin film of single-wall carbon nanotubes. The film may be deposited on a substrate of the device by using an elastomeric stamp. The film may be enhanced by spin-coating a smoothing layer on the film and/or doping the film to enhance conductivity. Electrodes according to the present invention may have conductivities, transparencies, and other features comparable to other materials typically used as electrodes in optoelectronic devices.

Organic optoelectronic device electrodes with nanotubes

Techniques, apparatus and systems are described for wafer-scale processing of aligned nanotube devices and integrated circuits. In one aspect, a method can include growing aligned nanotubes on at least one of a wafer-scale quartz substrate or a wafer-scale sapphire substrate. The method can include transferring the grown aligned nanotubes onto a target substrate. Also, the method can include fabricating at least one device based on the transferred nanotubes.

Integrated circuits based on aligned nanotubes

A high performance field-effect transistor includes a substrate, a nanomaterial thin film disposed on the substrate, a source electrode and a drain electrode formed on the nanomaterial thin film, and a channel area defined between the source electrode and the drain electrode. A unitary self-aligned gate electrode extends from the nanomaterial thin film in the channel area between the source electrode and the drain electrode, the gate electrode having an outer dielectric layer and including a foot region and a head region, the foot region in contact with a portion of the nanomaterial thin film in the channel area. A metal layer is disposed over the source electrode, the drain electrode, the head region of the gate electrode, and portions of the nanomaterial thin film proximate the source electrode and the drain electrode in the channel area.

High performance field-effect transistors

The present invention relates to various methods of detecting DNA methylation and defected DNA. In one embodiment, the invention provides a nanosensor bound to a probe that is complementary to a DNA methylation sequence.

Detection of methylated DNA and DNA mutations

Growing community of inventors

Arcadia, CA, United States of America

Chongwu Zhou