The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2016
Filed:
Oct. 29, 2013
Metal Industries Research&development Centre, Kaohsiung, TW;
Tai-Hsin Hsu, Kaohsiung, TW;
Wen-Bin Jian, Hsinchu, TW;
METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE, Kaohsiung, TW;
Abstract
A graphene screening and separation method comprises the following steps. At least one pair of electrodes and an energy barrier layer is provided, wherein the pair of electrodes is a first electrode and a second electrode, and the energy barrier layer is formed on the first electrode. The pair of electrodes and the energy barrier layer are covered with a graphene suspension. When a graphene sheet in the graphene suspension materially couples the second electrode and the energy barrier layer and is located above the first electrode, a bias voltage between the first electrode and the second electrode of the pair of electrodes is changed and a corresponding tunneling current is measured. Screening and separation are performed by using differential conductance (i.e., the derivative of the tunneling current with respect to the bias voltage) of different layers of graphene.