Paul R. – TechConnect Briefs

Visible Photoluminescence Emission from Chemically Synthesized MWCNT/TiO2 Hybrid Nanostructure

Paul R., Kumbhakar P., Mitra A.K., National Institute of Technology, Durgapur, IN

We report here a simple chemical precipitation process to synthesize a heterostructure of multi-walled carbon nanotubes (MWCNTs) and TiO2 (titania) nanoparticles of average size 3.5 nm. The hybrid structure has been characterized by high resolution [...]

Violet-Blue Emission From TiO2/SWCNT Hybrid Structure Synthesized by a Simple Chemical Route

Paul R., Kumbhakar P., Mitra A.K., NIT Durgapur India, IN

Using a lucid wet chemical process under room temperature, titania nanocrystallites of average size 5 nm have been adhered to the surfaces of SWCNT bundles. The hybrid structure has been characterized by high resolution transmission [...]

Modification of photoluminescence characteristics of single wall carbon nanotubes by ZnS intercalation

Paul R., Kumbhakar P., Mitra A.K., National Institute Of Technology, IN

Commercially available SWNT of >95% purity was purified by high temperature oxidation and acid treatment. By a simple chemical wet process, SWNT samples were intercalated with as-prepared ZnS nanoparticles. The dried samples were dispersed in [...]

Electrical Potential Distribution in Nanopores

Gillespie A.R., Paul R., Paddison S.J., Motorola, US

The study of the transport of ionic species through nanopores is a subject of wide interest covering several diverse fields such as biophysics, electrochemistry and polymer science. While, during recent decades, considerable advances have been [...]

Development of Thermodynamic Methods for the study of Nanopores

Paul R., Paddison S.J., University of Calgary, CA

A statistical mechanical formalism is presented for the calculation of the thermodynamic properties of the water in nanopores of polymer electrolytes, with particular emphasis on the polarization. We describe a method that exploits the variational [...]