Theoretical Calculation of Optical Absorption Spectrum for Armchair Graphene Nanoribbon

Half - metallic Armchair Graphene Nanoribbon

Submitted for the MAR10 Meeting of The American Physical Society Half-metallic Armchair Graphene Nanoribbon FUMIYUKI ISHII, KEISUKE SAWADA, MINEO SAITO, Kanazawa University — Among a variety of applications of graphenes, spintronics applications are considered to be hopeful. For an example, spin transport has been experimentally observed by using graphene layers [1]. There are two types of shap...

Transport properties of armchair graphene nanoribbon junctions between graphene electrodes.

The transmission properties of armchair graphene nanoribbon junctions between graphene electrodes are investigated by means of first-principles quantum transport calculations. First the dependence of the transmission function on the size of the nanoribbon has been studied. Two regimes are highlighted: for a small applied bias transport takes place via tunneling and the length of the ribbon is t...

Theoretical Study of Graphene Nanoribbon Photo-Detectors

Mahdi Pourfath, Hans Kosina, and Siegfried Selberherr Institute for Microelectronics, TU Wien, Gußhausstraße 27–29/E360, A-1040 Wien, Austria Email: {pourfath|kosina|selberherr}@iue.tuwien.ac.at Graphite-related materials such as carbon nanotubes (CNTs) and graphene have been extensively studied in recent years due to their exceptional electronic, opto-electronic, and mechanical properties. How...

D band Raman intensity calculation in armchair edged graphene nanoribbons

Theoretical study of graphene nanoribbon field-effect transistors

Carbon nanoribbons (CNRs) have been recently experimentally and theoretically investigated for different device applications due to their unique electronic properties. In this work, we present a theoretical study of the electronic structure, e.g. bandgap and density of states, of armchair carbon nanoribbons, using both, simple analytical solutions and numerical solutions based on a πorbital tig...