Ashish K. Ranjan

ORCID: 0000-0001-9119-2244
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About
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Research Areas
  • Perovskite Materials and Applications
  • ZnO doping and properties
  • Copper-based nanomaterials and applications
  • Advanced Photocatalysis Techniques
  • Quantum Dots Synthesis And Properties
  • Analytical Chemistry and Sensors
  • Random lasers and scattering media
  • Conducting polymers and applications
  • Chalcogenide Semiconductor Thin Films
  • Metamaterials and Metasurfaces Applications
  • Transition Metal Oxide Nanomaterials
  • Electronic and Structural Properties of Oxides
  • Neural Networks and Reservoir Computing
  • Semiconductor materials and devices
  • Optical Coatings and Gratings

Banaras Hindu University
2020-2024

Plasmonic catalysis triggers the dissociation of H2 or adsorbed O2 (sluggish processes) under continuous wave excitation via plasmon decay. This is coupled to interband intraband d-band sp-band, respectively, levels above fermi level metals. Here, we have studied plasmonic and photocatalytic behavior in an environment friendly medium with AM 1.5 G sunlight CuO/Cu2O thin films fabricated by pulsed laser deposition technique vacuum varying thickness. We achieved ∼0.59 kmol h−1g−1H2 production...

10.1063/5.0188802 article EN cc-by Journal of Applied Physics 2024-05-08

10.1016/j.ijhydene.2024.08.302 article EN International Journal of Hydrogen Energy 2024-08-01

Abstract Bandgap engineering is controlled manipulation of the bandgap material/meta-materials to get desired properties. The electrical and optical properties materials are significantly affected by tuning; therefore a powerful technique for designing electronic optoelectronic devices. Compositional engineering, strain nano-science technology three major associated field with engineering. Any unique combination these can provide novel strategy produce band structured In this method article,...

10.1088/1361-6463/ad8002 article EN Journal of Physics D Applied Physics 2024-09-26

With the recent global surge in research on perovskite halides, CuO is one of binary oxides, which gets attention as a hole transport material. In centrosymmetric CuO, parity-time (PT) violation leads to photoconduction. The PTsymmetry can be preserved if system were non-reciprocal. Thus, current work, we fabricated an ultra-thin film using pulsed laser deposition and observed anisotropic semiconductor parameters estimated from photoresponse suggest that relative value free charge carrier...

10.1063/5.0116696 article EN Journal of Applied Physics 2022-11-15

10.1016/j.matpr.2020.01.440 article EN Materials Today Proceedings 2020-01-01
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