公开(公告)号：US20170247257A1

公开(公告)日：2017-08-31

申请号：US15510789

申请日：2015-09-14

申请人： Northeastern University ,  Massachusetts Institute of Technology

发明人： Yung Joon JUNG ,  Hyun Young JUNG ,  Swastik KAR ,  Chi Won AHN ,  Mildred DRESSELHAUS ,  Paulo Antonio Trindade ARAUJO

IPC分类号： C25B1/00 ,  B01J19/08 ,  H01B1/04 ,  C01B31/02

CPC分类号： B01J19/087 ,  B01J2219/0803 ,  B01J2219/0879 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/16 ,  C01B32/168 ,  C01B32/18 ,  C01B32/184 ,  C01B2202/08 ,  C01B2204/04 ,  C01B2204/06 ,  C01B2204/22 ,  C01B2204/24 ,  H01B1/04 ,  Y10S977/734 ,  Y10S977/842 ,  Y10S977/932

摘要： Inter-allotropic transformations of carbon are provided using moderate conditions including alternating voltage pulses and modest temperature elevation. By controlling the pulse magnitude, small-diameter single-walled carbon nanotubes are transformed into larger-diameter single-walled carbon nanotubes, multi-walled carbon nanotubes of different morphologies, and multi-layered graphene nanoribbons.

公开(公告)号：US20180294518A1

公开(公告)日：2018-10-11

申请号：US15941870

申请日：2018-03-30

申请人： Northeastern University

发明人： Sanghyun HONG ,  Yung Joon JUNG ,  Rodrigo Lasserote LAVALL ,  Hyehee KIM ,  Ahmed BUSNAINA

IPC分类号： H01M10/0562 ,  H01M10/0525 ,  H01M4/583 ,  H01M2/14 ,  H01G11/06 ,  H01G11/36 ,  H01G11/56 ,  H01G11/52

摘要： An electrode-electrolyte system for use in batteries and supercapacitors allows enhanced access of ions and electrons from the electrolyte to the electrode. The electrode includes an electrically conductive substrate, a nanostructured active material layer deposited on the substrate, and a porous membrane coating the nanostructured active material. The porous membrane is flexible and made of a polymer network and a conductive additive.

公开(公告)号：US20190243009A1

公开(公告)日：2019-08-08

申请号：US16331648

申请日：2017-09-11

申请人： Northeastern University

发明人： Ji HAO ,  Swastik KAR ,  Yung Joon JUNG ,  Daniel RUBIN

IPC分类号： G01T1/24 ,  G01T1/185 ,  H01J49/02 ,  H01J49/04

CPC分类号： G01T1/244 ,  C01B19/04 ,  C01B32/159 ,  C01B32/182 ,  G01T1/185 ,  H01J49/025 ,  H01J49/04

摘要： Ultrasensitive, miniaturized, and inexpensive ion and ionizing radiation detection devices are provided. The devices include an insulating substrate, metallic contact pads disposed on a surface of the substrate, and a strip of an ultrathin two-dimensional material having a thickness of one or a few atomic layers. The strip is in contact with the contact pads, and a voltage is applied across the two-dimensional sensor material. Individual ions contacting the two-dimensional material alter the current flowing through the material and are detected. The devices can be used in a network of monitors for high energy ions and ionizing radiation.

公开(公告)号：US20200094515A1

公开(公告)日：2020-03-26

申请号：US16484024

申请日：2017-09-11

申请人： Northeastern University

发明人： Swastik KAR ,  Ji HAO ,  Daniel RUBIN ,  Yung Joon JUNG

IPC分类号： B32B5/16 ,  C01B32/194

摘要： Ion-doped two-dimensional nanomaterials are made by inducing electronic carriers (electrons and holes) in a two-dimensional material using a captured ion layer at the surface of the material. The captured ion layer is stabilized using a capping layer. The induction of electronic carriers works in atomically-thin two-dimensional materials, where it induces high carrier density of at least 1014 carriers/cm2. A variety of novel ion-doped nanomaterials and p-n junction-based nanoelectronic devices are made possible by the method.