Nanosys, Inc.

University of California

Harvard College

Sandisk Corporation

Sharp Kabushiki Kaisha Corporation

Xiangfeng Duan

Yu Huang

Chunming Niu

J Wallace Parce

Linda T Romano

Jian Chen

David P Stumbo

Vijendra Sahi

Jay L Goldman

Stephen A Empedocles

Chao Liu

Charles M Lieber

James M Hamilton

Yi Cui

Lawrence A Bock

David Leslie Heald

Yaoling Pan

Karen Chu Cruden

Robert S Dubrow

Yuxi Xu

Francisco A Leon

Srikanth Ranganathan

R Hugh Daniels

Shahriar Mostarshed

Cheri X Y Pereira

Yuan Liu

Madhuri Nallabolu

Hiroshi Iwata

Akihide Shibata

Paul John Schuele

Hiroshi Ohki

Francesco Lemmi

Jeffrey L Miller

Katsumasa Fujii

Tetsu Negishi

Samuel Edward Martin

Dave Stumbo

Yasunobu Okada

Xu Xu

Mufan Li

Benjamin Papandrea

Hongtao Sun

Alice Fischer-Colbrie

Parce J Wallace

Erik C Scher

Calvin Y H Chow

Jeffery A Whiteford

Hongkun Park

Jingwei Bai

Chee Wei Wong

Qingqiao Wei

Virginia Robbins

George Pontis

Wenjie Liang

Paul Bernatis

Ritesh Agarwal

Baicheng Yao

Hailong Zhou

Woojong Yu

Hugh Daniels

Chengzhang Wan

Xiang Xu

Zipeng Zhao

Xiaoqing Huang

Calvin Y H Cho

Mark Gudiksen

Lincoln J Lauhon

Jianfang Wang

David C Smith

Deli Wang

Zhaohui Zhong

Madhuri L Nallabolu

Ying Cui

Yung-Sheng Huang

A method of forming an electrode material includes: (1) loading an electrochemically active material onto graphene sheets; (2) combining the electrochemically active material-loaded graphene sheets with holey graphene oxide sheets to form a mixture; and (3) treating the mixture under reducing conditions to form a composite including a graphene framework loaded with the electrochemically active material.

Holey graphene framework composites for ultra-high rate energy storage and methods of preparing such composites

Provided herein are catalyst materials comprising a catalyst support; and PtM' nanowires affixed to the catalyst support, wherein the PtM′ nanowires include single atomic species of M′ at exterior surfaces of the PtM′ nanowires, and M′ represents at least one metal, e.g., a metal different from Pt. Also disclosed are manufacturing methods comprising: providing initial MM′ nanowires having an initial molar ratio of M:M′, wherein M is a noble metal, and M′ is a metal different from M; subjecting the initial MM′ nanowires to electrochemical dealloying to partially remove M′ and form partially dealloyed MM′ nanowires having a subsequent molar ratio of M:M′, wherein the subsequent molar ratio of M:M′ is greater than the initial molar ratio of M:M′; and affixing the partially dealloyed MM′ nanowires to a catalyst support.

Single-atom tailoring of platinum nanocatalysts for high-performance multifunctional electrocatalysis

A ceramic aerogel includes a porous framework including interconnected double-paned wall structures of a ceramic material, wherein each double-paned wall structure includes a pair of walls spaced apart by a gap.

Double-negative-index ceramic aerogels for thermal superinsulation

A lithium-ion battery includes: 1) an anode; 2) a cathode; and 3) an electrolyte disposed between the anode and the cathode and including lithium ions. The anode includes a graphene framework film including interconnected graphene sheets, and the graphene framework film has a specific surface area of 600 mgor more.

Solvated graphene frameworks as high-performance anodes for lithium-ion batteries

An electronic or optoelectronic device includes: (1) a layer of a first material; and (2) a layer of a second material disposed on the layer of the first material, wherein the first material is different from the second material, and the layer of the first material is spaced from the layer of the second material by a gap.

Van der Waals integration approach for material integration and device fabrication

A manufacturing method includes: (1) providing M-M' nanowires, wherein M&#x2032; is at least one sacrificial metal different from M; and (2) subjecting the M-M&#x2032; nanowires to electrochemical de-alloying to form jagged M nanowires.

Ultrafine nanowires as highly efficient electrocatalysts

The present disclosure provides supercapacitors that may avoid shortcomings of current energy storage technology. Provided herein are materials and fabrication processes of such supercapacitors. In some embodiments, an electrochemical system comprising a first electrode, a second electrode, wherein at least one of the first electrode and the second electrode comprises a three dimensional porous reduced graphene oxide framework.

Graphene frameworks for supercapacitors

Methods and apparatus for providing all-optically generated, on-chip propagated and high-efficiency tunable plasmons are described. The plasmon generating apparatus includes a graphene based silicon nitride waveguide (GSiNW) utilizing 'C+L' band light sources and detectors that take advantage of the surface 2nd nonlinearity on graphene. The optical generation is accomplished via one or more optical communication lasers through the difference-frequency generation process. The THz frequency and intensity is tunable via an external gate voltage. Using such a device the optical to THz conversion may be made at least an order of magnitude more efficient than prior THz sources, and can be used to make chip-scale room-temperature THz sources, switches, modulators and detectors based on graphene.

Graphene-based semiconductor chip for tunable THz plasmon generation

A method of forming a graphene-based material includes: (1) treating a mixture including an etchant and graphene oxide sheets to yield formation of holey graphene oxide sheets; (2) dispersing the holey graphene oxide sheets in a re-dispersal solvent to yield a holey graphene oxide dispersion including the holey graphene oxide sheets; and (3) treating the holey graphene oxide dispersion under reducing conditions to yield self-assembly of the holey graphene oxide sheets into a graphene-based material.

Dispersions of holey graphene materials and applications thereof

An electrochemical capacitor includes a pair of electrodes and an electrolyte disposed between the pair of electrodes. At least a first electrode of the pair of electrodes includes a graphene framework film, and the graphene framework film includes interconnected graphene sheets with nanopores formed in the graphene sheets.

Three-dimensional graphene framework-based high-performance supercapacitors

A process of growing graphene includes: (1) providing a metal substrate; (2) annealing the metal substrate up to a growth temperature for an annealing time period and in the presence of a non-reducing gas; and (3) introducing a gas mixture to grow graphene over the metal substrate. The gas mixture includes a first gas and a second gas that is a carbon-containing precursor, a molar ratio of the first gas and the second gas is at least 100, and introducing the gas mixture is carried out at a pressure up to 100 mbar.

Chemical vapor deposition growth of graphene

A method of forming a thin film includes: (1) providing an ink composition including nanoplates of a layered material disposed in a liquid dispersion medium; (2) applying the ink composition over a substrate to form a coating; and (3) annealing the coating to form a thin film of the layered material over the substrate.

High performance thin films from solution processible two-dimensional nanoplates

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Mountain View, CA, United States of America

Xiangfeng Duan