89 citations · 205 across the 7 of their papers we have counts for
8 papers
Formation of quantum dots in MoS2 with cryogenic Bi contacts and intrinsic Schottky barriers
Riku Tataka, Alka Sharma, Tomoya Johmen +4
The recent advancement in two-dimensional (2D) materials-based quantum confinement has provided an opportunity to investigate and manipulate electron transport for quantum applicat…
Substrate Mediated Synthesis of Ti-Si-N Nano-and-Micro Structures for Optoelectronic Applications
Sachin Yadav, Alka Sharma, Bikash Gajar +7
Being one of the strongest materials, ternary TiSiN exhibits a very interesting family of binary transition metal nitride and silicide systems. A novel technique to fabricate morph…
Novel synthesis of topological insulator based nanostructures (Bi2Te3) demonstrating high performance photodetection
Alka Sharma, T D Senguttuvan, V N Ojha +1
The rapid progress in 2D material research has triggered the growth of various quantum nanostructures-nanosheets, nanowires, nanoribbons, nanocrystals and the exotic nature origina…
Robust broad spectral photodetection (UV-NIR) and ultra high responsivity investigated in nanosheets and nanowires of Bi2Te3 under harsh nano-milling conditions
Alka Sharma, A. K. Srivastava, T. D. Senguttuvan +1
Due to miniaturization of device dimensions, the next generations photodetector based devices are expected to be fabricated from robust nanostructured materials. Hence there is an…
Evidence of robust 2D transport and Efros-Shklovskii variable range hopping in disordered topological insulator (Bi2Se3) nanowires
Biplab Bhattacharyya, Alka Sharma, Bhavesh Sinha +4
We report the experimental observation of variable range hopping conduction in focused-ion-beam (FIB) fabricated ultra-narrow nanowires of topological insulator (Bi2Se3). The value…
Light Induced Electron-Phonon Scattering Mediated Resistive Switching in Nanostructured Nb Thin Film Superconductor
Shafaq Kazim, Alka Sharma, Sachin Yadav +8
The elemental Nb is mainly investigated for its eminent superconducting properties. In contrary, we report of a relatively unexplored property, namely, its superior optoelectronic…