2D Materials

Structure and function—layer by layer

2D materials characterization tools selector

Biasing Manipulator TEM Heating + Biasing TEM Biasing TEM Furnace Heating TEM
Stimuli

Electrical
Thermal
Mechanical
Imaging Higher resolution and diffraction
EDS/EELS compatibility
In-situ imaging
Pre- and post-mortem analysis
Sample Type

Standard grid
FIB lift-out
MEMS chip

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Features

Featured Research

Transport in Graphene Nanoribbons

In an electron microscope the electron beam’s main function is to act as an illumination source. However, in the right energy range the electron beam can displace atoms from a material. Marija Drndić’s group at the University of Pennsylvania developed a process to modify graphene sheets into graphene nanoribbons with the aid of a TEM’s electron beam. By having these modifications done in a Hummingbird Scientific in situ TEM biasing sample holder, the researchers were able to 1) fabricate graphene-based devices inside the TEM column and 2) characterize the devices electronically without the need to remove the sample from the microscope. This technique is well suited for any 2D material.

Reference: Marija Drndić et al. In Situ Transmission Electron Microscopy Modulation of Transport in Graphene Nanoribbons. ACS Nano (2016).

Abstract

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Image copyright © 2016 American Chemical Society

Selected Publications

Edward R. White, Jared J. Lodico, and B. C. Regan. “Intercalation events visualized in single microcrystals of graphite,” Nature Communications (2017) Abstract
William M. Parkin, Adrian Balan, Liangbo Liang, Paul Masih Das, Michael Lamparski, Carl H. Naylor, Julio A. Rodríguez-Manzo, A. T. Charlie Johnson, Vincent Meunier, and Marija Drndić.
“Raman Shifts in Electron-Irradiated Monolayer MoS2,” ACS Nano (2016)
Abstract
Julio A. Rodríguez-Manzo, Zhengqing John Qi, Alexander Crook, Jae-Hyuk Ahn, A. T. Charlie Johnson, and Marija Drndić. “In Situ Transmission Electron Microscopy Modulation of Transport in Graphene Nanoribbons,” ACS Nano (2016) Abstract
Matthew Puster, Adrian Balan, Julio A. Rodríguez-Manzo, Gopinath Danda, Jae-Hyuk Ahn, William Parkin, and Marija Drndić. “Cross-Talk Between Ionic and Nanoribbon Current Signals in Graphene Nanoribbon-Nanopore Sensors for Single-Molecule Detection,” Small (2015) Abstract

 

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