Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session J57: Synthesis of 2D Materials, Superlattices, and Defects
3:00 PM–6:00 PM,
Tuesday, March 16, 2021
Sponsoring
Unit:
DMP
Chair: Liuyan Zhao, University of Michigan
Abstract: J57.00011 : Polymer-Free Transfer of 2D Materials onto III-V Semiconductor Surfaces for Scanning Probe Microscopy and Molecule-Encapsulation Experiments*
5:24 PM–5:36 PM
Live
Presenter:
Lihy Buchbinder
(Department of Physics, University of New Hampshire)
Authors:
Lihy Buchbinder
(Department of Physics, University of New Hampshire)
Sara Mueller
(Department of Physics, City College of New York)
Jay A. Gupta
(Department of Physics, The Ohio State University)
An attractive application of this touch-transfer method is the encapsulation of target molecules between the semiconductor surface and graphene flakes for scanning tunneling microscopy (STM) studies. The conductivity of graphene allows us to probe the electronic states of otherwise challenging molecules and explore their possible applications. We present results of encapsulation of deionized water droplets between GaAs (110) and thinned graphite, characterized by atomic force (AFM), scanning electron (SEM) and optical microscopy techniques. Further studies will utilize nano-squeegeeing techniques using contact-mode AFM to control the placement of trapped water molecules.
*Funding for this research was provided by the Center of Emergent Materials: an NSF MRSEC under award number DMR-1420451
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