119 citations · 406 across the 14 of their papers we have counts for
9 papers · 1 filter
Novel single phase vanadium dioxide nanostructured films for methane sensing near room temperature
A. K. Prasad, S. Amirthapandian, S. Dhara +3
Methane (CH_4) gas sensing properties of novel vanadium dioxide (VO_2) nanostructured films is reported for the first time. The single phase nanostructures are synthesized by pulse…
Optical Properties of Mono-Dispersed AlGaN Nanowires in the Single-Prong Growth Mechanism
A. K. Sivadasan, Avinash Patsha, S. Polaki +5
Growth of mono-dispersed AlGaN nanowires of ternary wurtzite phase is reported using chemical vapour deposition technique in the vapour-liquid-solid process. The role of distributi…
Raoult's Formalism in Understanding Low Temperature Growth of GaN Nanowires using Binary Precursor
Kishore K. Madapu, S. Dhara, S. Amirthapandian +2
Growth of GaN nanowires are carried out via metal initiated vapor-liquid-solid mechanism, with Au as the catalyst. In chemical vapour deposition technique, GaN nanowires are usuall…
Growth of InN quantum dots to nanorods: A competition between nucleation and growth rates
Kishore K. Madapu, Sandip Dhara, S. Polaki +2
Growth evolution of InN nanostructures via a chemical vapor deposition technique is reported using In_2O_3 as precursor material and NH_3 as reactive gas in the temperature range o…
Direct Evidence of Mg Incorporation Pathway in Vapor-Liquid-Solid Grown p-type Nonpolar GaN Nanowires
Avinash Patsha, S. Amirthapandian, Ramanathaswamy Pandian +3
Doping of III-nitride based compound semiconductor nanowires is still a challenging issue to have a control over the dopant distribution in precise locations of the nanowire optoel…
Photoluminescence of oxygen vacancies and hydroxyl group surface functionalized SnO_2 nanoparticles
Venkataramana Bonu, Arindam Das, S. Amirthapandian +2
We report, for the first time, the luminescence property of the hydroxyl group surface functionalized quantum dots (QDs) and nanoparticles (NPs) of SnO_2 using low energy excitatio…
Influence of oxygen in architecting large scale nonpolar GaN nanowires
Avinash Patsha, S. Amirthapandian, Ramanathaswamy Pandian +1
Manipulation of surface architecture of semiconducting nanowires with a control in surface polarity is one of the important objectives for nanowire based electronic and optoelectro…
Optical band gap and associated band-tails in nanocrystalline AlN thin films grown by reactive IBSD at different substrate temperatures
Neha Sharma, Shilpam Sharma, K. Prabakar +4
AlN thin films have been grown on Si (100) substrates by reactive ion beam sputter deposition (IBSD) at different substrate temperatures varying from room temperature (RT) to 500oC…
Enhanced superconductivity and superconductor to insulator transition in nano-crystalline molybdenum thin films
Shilpam Sharma, E. P. Amaladass, Neha Sharma +3
Disorder driven superconductor to insulator transition via intermediate metallic regime is reported in nano-crystalline thin films of molybdenum. The nano-structured thin films hav…