Credentials
Education
- Indian Association for the Cultivation of Science, Kolkata, India, Ph.D. 2015 Physics
- Jadavpur University, Kolkata, India, M. Tech. in Nanoscience and Nanotechnology, 2009
- Osmania University, Hyderabad, India, M.Sc. in Physics, 2006
Professional Appointments
- 2024.06 – present; Scientist I, Ames National Laboratory, Iowa State University, Ames, Iowa
- 2021.01–2024.05; Postdoctoral Research Associate, Nanosceinces Group (GNS), CEMES-CNRS, Toulouse, France
- 2020.01–2024.12; Postdoctoral Research Associate, Nanostructures at the Nanosecond (NS2) at the Laboratoire de Physique des Solides (LPS), CNRS, Université Paris-Saclay, Orsay, France
- 2019.01–2020.01; Postdoctoral Research Associate, Groupe Nanosciences (GNS), CEMES-CNRS, Toulouse, France
- 2016.01–2019.01; Postdoctoral Research Associate, Quantum Solid State Physics (QSP), KU Leuven, Leuven, Belgium
- 2011.08–2015.12; Senior Research Fellow, Centre for Advanced Materials (CAM), Indian Association for the Cultivation of Science, Kolkata, India
- 2009.10–2011.07; Junior Research Fellow, Centre for Advanced Materials (CAM), Indian Association for the Cultivation of Science, Kolkata, India
Honors & Awards
- Marie Curie Individual Fellowship (Jan 2021 – Dec 2022), Grant number: 895239, Marie Skłodowska-Curie Actions (MSCA), European Union Horizon 2020
- Best Oral Presentation Award at National Science Day (NSD−2015) at Indian Association For the Cultivation of Science, Kolkata, India
- Best Poster Presentation Award at Frontiers in Advanced Materials (FAM−2015) at Indian Institute of Science, Bangalore, India
-
CSIR-Senior Research Fellowship (CSIR) - Senior Research Fellowship (SRF), 2014, Council of Scientific and Industrial Research, India.
- All India Council for Technical Education (AICTE) Fellowship (Jul 2007−Jun 2009), India
- Qualified All India Entrance Exam GATE−2007 in Physics
Areas of Expertise
- Low-temperature and Ultra-High Vacuum Scanning Tunneling Microscopy and Spectroscopy (STM/S) and Surface Science Techniques
Research
Research Interests
- On-surface synthesis of nano-graphenes in Ultrahigh Vacuum (UHV) environments.
- Atomic scale intercalation of metals and rare-earth metals at the interface of epitaxial graphene grown on SiC surfaces
- Atomic scale electronic properties of low-dimensional materials and heterostructures determined by Scanning Tunneling Spectroscopy (STS) in Scanning Tunneling Microscopy (STM) at Low-temperatures (LHe @ ~4.5 K) and in UHV atmosphere.
- Transport at the atomic- and nanometer-scales by multiprobe Scanning Tunneling Microscopy and Spectroscopy (STM & STS) at Low-temperatures (LHe @ ~4.5 K) and in UHV atmosphere.
Publications
Low-temperature UHV scanning tunneling microscope double sample holder for in situ exchangeable clean room processed samples
Review of Scientific Intruments,
2025
Mapping the Slow Stabilization of End States with Length along a Laterally Extended Graphene Nanoribbon
The Journal of Physical Chemistry Letters,
2024
Long and isolated graphene nanoribbons by on-surface polymerization on Au (111)
Communications Chemistry,
2023
Tunneling electronic excitations spatial mapping of a single graphene nanoribbon on Ag (111)
Physical Review Materials,
2023
Planar bridging an atomically precise surface trench with a single molecular wire on an Au (1 1 1) surface
Chemical Physics Letters,
2022
Two-dimensional tellurium superstructures on Au (111) surfaces
The Journal of Chemical Physics,
2022
Coherent and Incoherent Tunneling into Yu-Shiba-Rusinov States Revealed by Atomic Scale Shot-Noise Spectroscopy
Physical Review Letters,
2022
Structural and electronic properties of the pure and stable elemental 3D topological Dirac semimetal α-Sn
Apl Materials,
2020
Probing Local Electronic Structures of Au–PbS Metal–Semiconductor Nanodumbbells
ACS Applied Nano Materials,
2018
Scanning probe microscopy induced surface modifications of the topological insulator Bi2Te3 in different environments
Nanotechnology,
2017
Annealing-Induced Bi Bilayer on Bi2Te3 Investigated via Quasi-Particle-Interference Mapping
ACS nano,
2016
Chemical Tailoring of Band Offsets at the Interface of ZnSe–CdS Heterostructures for Delocalized Photoexcited Charge Carriers
The Journal of Physical Chemistry C,
2016
Mechanism of versatile catalytic activities of quaternary CuZnFeS nanocrystals designed by a rapid synthesis route
Small,
2015
Easy extraction of water-soluble graphene quantum dots for light emitting diodes
RSC Advances,
2015
Insight into the mechanism revealing the peroxidase mimetic catalytic activity of quaternary CuZnFeS nanocrystals: colorimetric biosensing of hydrogen peroxide and glucose
Nanoscale,
2015
Shape dependent synthesis and field emission induced rectification in single ZnS nanocrystals
ACS Applied Materials & Interfaces,
2014
Current rectification by a single ZnS nanorod probed using a scanning tunneling microscopic technique
Journal of Materials Chemistry C,
2014
Evolution of Long Range Bandgap Tunable Lead Sulfide Nanocrystals with Photovoltaic Properties
The Journal of Physical Chemistry C,
2013
A bottom-up approach toward fabrication of ultrathin PbS sheets
Nano letters,
2013
Ultra narrow PbS Nanorod field emitter
The Journal of Physical Chemistry C,
2012
Short-lived, intense and narrow bluish-green emitting gold zinc sulfide semiconducting nanocrystals
The Journal of Physical Chemistry C,
2012
Synthesis, structure and electronic properties of ultranarrow CdS nanorods
Journal of Nanoparticle Research,
2012
Crystallographic phase induced electro-optic properties of nanorod blend nematic liquid crystal
Journal of Nanoscience and Nanotechnology,
2011
Size Selective Excitonic Transition Energies in Strongly Confined CdSe Quantum Dots
Journal of Nanoscience and Nanotechnology,
2011
Size controlled ultranarrow PbS nanorods: spectroscopy and robust stability
Journal of Materials Chemistry,
2011
Ultranarrow PbS nanorod-nematic liquid crystal blend for enhanced electro-optic properties
ACS Applied Materials & Interfaces,
2010
Preparation of nanocrystalline CuAlO2 through sol–gel route
Journal of sol-gel science and technology,
2009