O. S. Panwar

Nanomechanical inhomogeneities in CVA-deposited titanium nitride thin films: Nanoindentation and finite element method investigations

Neeraj Kumar Sharma, Anchal Rana, O. S. Panwar, Abhimanyu Rana

Refractory metals that can withstand at high temperatures and harsh conditions are of utmost importance for solar-thermal and energy storage applications. Thin films of TiN have been deposited using cathodic vacuum arc deposition at relatively low temperatures ∼300 °C using the substrate …

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Growth and characterization of nanocluster carbon for vacuum nano electronic applications

M.P. Nirupama, O. S. Panwar, B. Satyanarayana

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Nanomechanical inhomogeneities in CVA-deposited titanium nitride thin films: Nanoindentation and Finite Element Method Investigations

Neeraj Kumar Sharma, Anchal Rana, O. S. Panwar, Abhimanyu Rana

Refractory metals that can withstand at high temperatures and harsh conditions are of utmost importance for solar-thermal and energy storage applications. Thin films of TiN have been deposited using cathodic vacuum arc deposition (CVA) at relatively low temperatures ~ 300 oC using …

The Viability of Nanocluster Carbon-Based Field Emitter Arrays for the Field Emission Electrical Propulsion System

Nirupama Malavalli Prasad, O. S. Panwar, B. Satyanarayana

The current work focuses on creating and demonstrating the viability of an indigenous capability to work on all aspects of Field Emission Electrical Propulsion (FEEP) technology, from the development of novel nanocarbon-based field emitter for field emission technology to the creation of …

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Nanosphere Lithography to Enhance the Field Emission Properties of a Self Aligned Nanocarbon Based Field Emitters

Nirupama M.P, Satyanarayana B.S., O. S. Panwar

An interesting application of nanocarbon based Field Emitters are in Field Emission Electrical Propulsion System (FEEP) as Field Emitters (FE). The nanocarbon is grown at room temperature to 250°C using indigenously designed and developed cathodic arc system. The best and stable electron …

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Study of variable range hopping conduction mechanism in nanocrystalline carbon thin films deposited by modified anodic jet carbon arc technique: application to light-dependent resistors

Ravi Kant Tripathi, O. S. Panwar, Ishpal Rawal, Chandra Kumar Dixit et autres

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Wettability property of CNT-graphene like film deposited by microwave plasma enhanced vapor deposition technique

Atul Bisht, Sreekumar Chockalingam, O. S. Panwar

Wettability property of carbon nano-tubes (CNT)-graphene like films have been investigated. In this work, we have studied the wettability of CNT-graphene like film deposited on Ni substrate by Microwave Plasma Enhanced vapor deposition Technique (MWPECVD). Compared to the water contact angles of …

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Graphene synthesized using filtered cathodic vacuum arc technique and its applications

O. S. Panwar, A. K. Kesarwani, Sanjay R. Dhakate, B. Satyanarayana

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Study on nanocrystalline silicon thin films grown by the filtered cathodic vacuum arc technique using boron doped solid silicon for fast photo detectors

Ravi Kant Tripathi, O. S. Panwar, Ishpal Rawal, Bhanu Pratap Singh et autres

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Surface Structure-Dependent Low Turn-On Electron Field Emission from Polypyrrole/Tin Oxide Hybrid Cathodes

Ishpal Rawal, Lalit Kumar, Ravi Kant Tripathi, O. S. Panwar

Abstract We present a new surface structure-dependent cold cathode material capable of sustaining high electron emission current suitable for next-generation low turn-on field-emission devices. The low turn-on electric field for electron emission in the cathode materials is critical, which facilitates the low-power …

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Organic-inorganic hybrid nanomaterials for advanced light dependent resistors

Ishpal Rawal, Neeraj Dwivedi, Ravi Kant Tripathi, O. S. Panwar et autres

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Nanoindentation study on nitrogenated tetrahedral amorphous carbon thin films with ultra low load

Ravi Kant Tripathi, O. S. Panwar, Sreekumar Chockalingam

This paper reports the improved nanomechanical properties of as grown and nitrogen incorporated tetrahedral amorphous carbon (ta-C, ta-C: N) films deposited by S-bend filtered cathodic vacuum arc (FCVA) technique using nanoindentation. The effect of varying amount of nitrogen incorporation on the nanomechanical …