Department of S c h o o l o f N a t u r a l S c i e n c e s
Photoluminescent Composite Material for Eco-Friendly Lighting and Smart Computing
Projects undertaken by Professor Aloke Kanjilal with his Ph.D. student Dr. Bisweswar Santra
A rare-earth-free composite material has been developed in this project. The work addresses the global challenge of reducing dependence on imported rare-earth elements by offering a scalable and sustainable alternative for emerging technologies. The composite includes a phosphor that exhibits dual-band photoluminescence across the visible and near-infrared spectrum. In addition, the material demonstrates potential for use in neuromorphic computing, providing a pathway to overcome limitations associated with traditional von Neumann architectures.
Post-transition metal Sn-based chalcogenide perovskites: A promising lead-free and transition metal alternative for stable, high-performance photovoltaics
Projects undertaken by – Surajit Adhikari, Sankhasuvra Das, and Professor Priya Johari
Tin-based chalcogenide perovskites (ASnX₃) show stability, low bandgaps (0.79–1.50 eV), high mobility, and reduced phonon coupling, enabling solar efficiencies up to 31.2% making them promising for next-gen photovoltaics.
Prospects of 5d Lμ-Lτ hidden gauge interaction
Dibyendu Chakraborty, Arindam Chatterjee, Ayushi, Kaushik and Dr. Kenji Nishiwaki
We have been investigating the fascinating possibility that a new, very weak force works only in the heavy lepton part of the Standard Model through an extra hidden special direction. Many types of experiments, e.g., measuring neutrino oscillations and beam dump experiments can explore the scenario.
Nanoscience and Energy Research Lab (NERL)
In NERL, we conduct cutting-edge interdisciplinary research activities to meet global energy demands toward achieving a green energy transition. In our laboratory, we are involved in the research of designing novel nanomaterials and advanced electrolytes for the application of sustainable energy storage. NERL focuses on engineering energy materials and studies the fundamental science of different energy storage systems, including rechargeable batteries, supercapacitors, and hybrid-ion capacitors. Further, we are also involved in developing energy materials for energy conversion applications such as electrochemical water splitting.
Highly Selective Aptasensor for Optical Detection of Whole Cell Gastrointestinal Pathogen Shigella dysenteriae at LabelFree Liquid Crystal-Aqueous Interface
This work reports a label-free liquid crystal(LC)-based aptasensor for rapid detection of Shigella dysenteriae. Aptamer-target interactions modulate LC alignment at aqueous interfaces, inducing a quantifiable optical transition. The sensor demonstrates high specificity, with a detection limit of 30 CFU/mL and effective performance in complex food chain samples.
Assembly of graphene oxide vs. reduced graphene oxide in a phospholipid monolayer at air–water interfaces
Project undertaken by –
Ajit Seth and Professor Sajal Kumar Ghosh
We examined the structural changes induced by graphenebased nanomaterials (GNMs) in a phospholipid monolayer, mimicking one of the leaflets of a cellular membrane. Experimental findings demonstrate a strong interaction between graphene oxide (GO) flakes and a cationic monolayer, while reduced graphene oxide (rGO) flakes permeate the zwitterionic lipid layer. These results provide a solid groundwork for augmenting biomedical applications of GNMs.
Exact and asymptotic dissipative spectral form factor for elliptic Ginibre unitary ensemble
We study the dissipative spectral form factor (DSFF) in the elliptic Ginibre unitary ensemble (eGinUE), which interpolates between Ginibre and Gaussian unitary ensembles. We derive exact and asymptotic DSFF results, uncover a scaling relation connecting DSFFs across symmetry regimes, and explain the dip-ramp-plateau structure. Our results agree well with Monte Carlo-based simulations.