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Charge gradient microscopy

United States Patent

February 6, 2018
View the Complete Patent at the US Patent & Trademark Office
A method for rapid imaging of a material specimen includes positioning a tip to contact the material specimen, and applying a force to a surface of the material specimen via the tip. In addition, the method includes moving the tip across the surface of the material specimen while removing electrical charge therefrom, generating a signal produced by contact between the tip and the surface, and detecting, based on the data, the removed electrical charge induced through the tip during movement of the tip across the surface. The method further includes measuring the detected electrical charge.
Roelofs; Andreas (Wheaton, IL), Hong; Seungbum (Darien, IL)
14/ 258,965
April 22, 2014
This invention was made with government support under Contract Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The U.S. Government has certain rights in the invention.