Related Experiment Video
Updated: Jan 27, 2026

Preparation of Graphene-Supported Microwell Liquid Cells for In Situ Transmission Electron Microscopy
Published on: July 15, 2019
Physical mechanism on edge-dependent electrons transfer in graphene in mid infrared region
Xijiao Mu1, Jian Chai2, Jingang Wang3
1School of Mathematics and Physics, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing 100083, PR China.
Abstract:
In this paper, we report nanophotonic properties of single layer graphene with Zigzag and/or armchair edge in the region of Mid Infrared (Mid-IR). The photoinduced charge transfer of graphene can occur in electronic state transition of Mid-IR region, and then the transferred electrons can interact with the phonon of graphene at Mid-IR. The coupling excitation of photon and phonon (graphene plasmon) can results in photon-electron-phonon interactions, which can significantly enhance resonance Raman scattering of Mid-IR region, which is so called "graphene plasmon-enhanced resonance Raman scattering of Mid-IR region". The photoinduced charge transfers are strongly dependent on the kinds of edge structures of Zigzag and/or armchair, which are revealed by charge difference density. It is found that the edge structures of Zigzag and/or armchair play the most important role on the orientation of charge transfer. The analysis of molecular orbital Pipek-Mezey localization reveals the nature of edge structure on the occurrence or not photoinduced charge transfer. Our results can promote deeper understanding nanophotonic mechanism of Mid Infrared graphene and can be potentially used in the design of optical device based on Mid Infrared graphene.
Related Concept Videos
Ionic Bonding and Electron Transfer
Mechanisms of Heat Transfer
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Mechanisms of Heat Transfer I
Mechanisms of Heat Transfer II
Mechanism of heat transfer
Physical and Chemical Properties of Matter

