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5 papers
A Graphene-Carbon Nanotube Hybrid Material for Photovoltaic Applications
Ahmed A. Maarouf, Amal Kasry, Bhupesh Chandra +1
Large area graphene sheets grown by chemical vapor deposition can potentially be employed as a transparent electrode in photovoltaics if their sheet resistance can be significantly…
Manipulating infrared photons using plasmons in transparent graphene superlattices
Hugen Yan, Xuesong Li, Bhupesh Chandra +6
Superlattices are artificial periodic nanostructures which can control the flow of electrons. Their operation typically relies on the periodic modulation of the electric potential…
Excitons and high-order optical transitions in individual carbon nanotubes
Stephane Berciaud, Christophe Voisin, Hugen Yan +6
We examine the excitonic nature of high-lying optical transitions in single-walled carbon nanotubes by means of Rayleigh scattering spectroscopy. A careful analysis of the principa…
Variable Electron-Phonon Coupling in Isolated Metallic Carbon Nanotubes Observed by Raman Scattering
Yang Wu, Janina Maultzsch, Ernst Knoesel +6
We report the existence of broad and weakly asymmetric features in the high-energy (G) Raman modes of freely suspended metallic carbon nanotubes of defined chiral index. A signific…
Scaling of Resistance and Electron Mean Free Path of Single-Walled Carbon Nanotubes
Meninder Purewal, Byung Hee Hong, Anirudhh Ravi +3
We present an experimental investigation on the scaling of resistance in individual single walled carbon nanotube devices with channel lengths that vary four orders of magnitude on…