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. 07, 2022
Filed:
Jul. 05, 2018
Jiangsu University, Jiangsu, CN;
Xudong Ren, Jiangsu, CN;
Fuhui Ma, Jiangsu, CN;
Rihong Wang, Jiangsu, CN;
Lei Qian, Jiangsu, CN;
Wenxun Ma, Jiangsu, CN;
Jiangsu University, Zhenjiang County, CN;
Abstract
An apparatus for preparing graphene by means of laser irradiation in liquid, comprising a laser generating system, and further comprising a computer control system, a cleaning and drying system, and a workpiece auxiliary system. The light spot diameter of the laser emitted from a pulse laser unit () is increased by means of a beam expander (), and the laser is reflected and split by a beam splitter to form two laser beams; a first laser beam () shocks the right vertical plane of a graphite solid target () by means of a focusing lens, and a second laser beam () shocks the left vertical plane of the graphite solid target () by means of the focusing lens, so as to grow graphene on a copper foil () substrate.