Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session H71: Poster Session II (2:00pm - 5:00pm)
2:00 PM,
Tuesday, March 3, 2020
Room: Exhibit Hall C/D
Abstract: H71.00218 : Study of Low Energy Electron Transparency of Graphene and Doped-Graphene via Electron Energy Analyzer*
View Presentation Abstract
Presenter:
Merid Belayneh
(Qatar Environment & Energy Research Institute)
Author:
Merid Belayneh
(Qatar Environment & Energy Research Institute)
Fu,2 Sabre Kais,3 Timothy S Fisher,4 and Fahhad Alharbi1
1Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Doha, Qatar.
2Department of Mechanical Engineering, Purdue University, West Lafayette, Indiana, USA.
3Department of Chemistry and Physics, Purdue University, West Lafayette, Indiana, USA.
4Department of Mechanical and Aerospace Engineering & California Nano Systems Institute,
University of California Los Angeles, Los Angeles, CA, USA
The electron transparency of graphene is investigated using Hemispherical Energy Analyzer. We
further compare the results to numerically obtained values and find excellent agreement between
the two. The measurements and calculations demonstrated that graphene is an excellent electron transparent
material even at low electron kinetic energies where the transmission exceeds 90% with 12-eV energy. The experimental data and the model is used to extract the parameters of the experimental setup. There are some discrepancies about electron transparency of graphene in literature. By, detailed analysis, we showed that these are due to the sensitivity of the transmission on the experimental setup.
*Thanks, Qatar National Research Foundation for the support Grant No. NPRP X-107-1-027.
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