G
Gamini Sumanasekera
Researcher at University of Louisville
Publications - 173
Citations - 7174
Gamini Sumanasekera is an academic researcher from University of Louisville. The author has contributed to research in topics: Carbon nanotube & Raman spectroscopy. The author has an hindex of 40, co-authored 162 publications receiving 6490 citations. Previous affiliations of Gamini Sumanasekera include Pennsylvania State University & Ames Research Center.
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Journal ArticleDOI
Charge Transfer Equilibria Between Diamond and an Aqueous Oxygen Electrochemical Redox Couple
Vidhya Chakrapani,John C. Angus,Alfred B. Anderson,Scott D. Wolter,Brian R. Stoner,Gamini Sumanasekera +5 more
TL;DR: It is shown that electrons transfer between the diamond and an electrochemical reduction/oxidation couple involving oxygen is responsible for the surface conductivity and also influences contact angles and zeta potentials.
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Hybrid Tin Oxide Nanowires as Stable and High Capacity Anodes for Li-Ion Batteries
Praveen Meduri,Chandrashekhar Pendyala,Vivekanand Kumar,Gamini Sumanasekera,Mahendra K. Sunkara +4 more
TL;DR: This report presents a simple and generic concept involving metal nanoclusters supported on metal oxide nanowires as stable and high capacity anode materials for Li-ion batteries, which exhibited an exceptional capacity over hundred cycles with a low capacity fading of less than 1% per cycle.
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Effects of gas adsorption and collisions on electrical transport in single-walled carbon nanotubes
TL;DR: Degassing of bundles of single-walled carbon nanotubes in vacuum at 500 K is found to drive the thermoelectricpower (TEP) strongly negative, indicating that the degassed metallic tubes in a bundle are n type.
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The synthesis and fabrication of one-dimensional nanoscale heterojunctions.
TL;DR: This review separates the methods into vapor-phase synthesis, solution- phase synthesis, template-based synthesis, and other approaches, such as lithography, electrospinning, and assembly, used to form a variety of heterojunctions from different combinations of semiconductor, metal, carbon, and polymeric materials.
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Reversible Intercalation of Charged Iodine Chains into Carbon Nanotube Ropes
L. Grigorian,Keith A. Williams,S. Fang,Gamini Sumanasekera,A. L. Loper,Elizabeth C. Dickey,Stephen J. Pennycook,P. C. Eklund +7 more
TL;DR: In this article, the intercalation of charged polyiodide chains into the interstitial channels in a single-wall carbon nanotube (SWNT) rope lattice is reported.