40 papers, 4 patents, and the record behind them.

Chameleonic Color-Variable Microbead Emitters for Multilevel Spectroscopic Encryption from Visible to Infrared Wavelengths

Barman (ours), Watanabe, Deguchi et al.

• Photonic materials

Dopant-induced transition from genuine to sequential two-photon absorption in Sm3+/Eu3+ co-doped GdPO4 nanostructures for efficient optical limiting

Balakrishnan, Rajankumar, Chandapur et al.

• Materials chemistry

Highly efficient NIR heat shielding and UV-A blocking by porous nano-composite film of cesium tungsten oxide nanoparticles and carbon dots

Das, Barman (ours), Ngo et al.

• Sustainable opto-films
• Materials chemistry

Highly Fluorescent Phenyl-Modified Carbon Nitride Microcavities for Rare-Earth-Free Whispering-Gallery-Mode Emission and Unclonable Photonic Anti-Counterfeiting

Barman (ours), Watanabe, Das et al.

• Photonic materials

Metal-free, single-component white-light emission and visible-near-infrared whispering gallery mode micro-emitters

Barman (ours), Watanabe, Balakrishnan et al.

• Photonic materials

Porous nanohybrid transparent film with ITO nanoparticles and carbon dots for high-efficiency NIR shielding and UV-A blocking

Das, Barman (ours), Yamada et al.

• Sustainable opto-films
• Materials chemistry

Unveiling the synergistic photocatalyst Hf/W-BPY@ BN nanocomposite for synthetic dye degradation – Density functional theory insights, kinetics studies, thermodynamic studies, and isotherm models

Vijayakumar, Chandapur, Sharanappa et al.

• Energy & catalysis
• Materials chemistry

A dual-functional nanomaterial for a sustainable environment: Bismuth sulphide–titanium dioxide mediated photocatalysis and catalysis

Vijayakumar, Chandapur, Vaidya et al.

• Energy & catalysis

Carbonized Polymer Dots-Based Spectrally Adaptable Photonic Microbarcodes

Barman (ours), Watanabe, Nagao

• Photonic materials
• Materials chemistry

Laser Generation with Metal-Free Carbogenic Quantum Dots

• Photonic materials

Multilayer and microbead structures for ultraviolet to near infrared spectroscopic applications based on metal-free phosphors

• Photonic materials

Bioinspired Carbonized Polymer Microspheres for Full-Color Whispering Gallery Mode Emission for White Light Emission, Unclonable Anticounterfeiting, and Chemical Sensing Applications

Barman (ours), Hernández-Pinilla, Dao et al.

• Photonic materials

Combinatorial modulation to augment the all-round HER activity of a Ru-CrN catalyst

Sarkar, Barman (ours), Parui et al.

• Energy & catalysis

Generated White Light Having Adaptable Chromaticity and Emission, Using Spectrally Reconfigurable Microcavities

Barman (ours), Hernández‐Pinilla, Cretu et al.

• Photonic materials

Rare-Earth-Metal-Free Solid-State Fluorescent Carbonized-Polymer Microspheres for Unclonable Anti-Counterfeit Whispering-Gallery Emissions from Red to Near-Infrared Wavelengths

Barman (ours), Yamada, Watanabe et al.

• Photonic materials

New Insight into Fluorescent Polymeric Carbon Dots for Solid-State Laser Device

Barman (ours), Hernández-Pinilla, Cretu et al.

• Photonic materials
• Materials chemistry

N-Dopant Site Formulation for White-Light-Emitting Carbon Dots with Tunable Chromaticity

Barman (ours), Okano, Deguchi et al.

• Photonic materials
• Materials chemistry

Carbon Dot/Cellulose-Based Transparent Films for Efficient UV and High-Energy Blue Light Screening

Barman (ours), Handegård, Hashimoto et al.

• Sustainable opto-films
• Materials chemistry

Metal-free carbogenic quantum dots for laser generation

Hernandez, Barman (ours), Furuhata et al.

• Photonic materials
• Materials chemistry

Ruthenium nanodendrites on reduced graphene oxide: An efficient water and 4-nitrophenol reduction catalyst

Barman (ours), Sarkar, Nandan et al.

• Energy & catalysis

Transparent Hard Coatings with SiON-Encapsulated N-Doped Carbon Dots for Complete UV Blocking and White Light Emission

Barman (ours), Handegård, Hernández-Pinilla et al.

• Photonic materials
• Sustainable opto-films
• Materials chemistry

Dual roles of a transparent polymer film containing dispersed N-doped carbon dots: A high-efficiency blue light converter and UV screen

Barman (ours), Nagao, Nanda

• Sustainable opto-films
• Materials chemistry

Three-dimensional nitrogen-doped graphitic carbon-encapsulated MnO-Co heterostructure: A bifunctional energy storage material for Zn-ion and Zn−air batteries

Samanta, Barman (ours), Mallick et al.

• Energy & catalysis
• Materials chemistry

In Situ Decoration of Ultrafine Ru Nanocrystals on N-Doped Graphene Tube and Their Applications as Oxygen Reduction and Hydrogen Evolution Catalyst

Barman (ours), Sarkar, Ghosh et al.

• Energy & catalysis
• Materials chemistry

Nitrogen and phosphorous co-doped graphitic carbon encapsulated ultrafine OsP2 nanoparticles: A pH universal highly durable catalyst for hydrogen evolution reaction

Chakrabartty, Barman (ours), Raj

• Energy & catalysis
• Materials chemistry

Pd-coated Ru nanocrystals supported on N-doped graphene as HER and ORR electrocatalysts

Barman (ours), Sarkar, Nanda

• Energy & catalysis
• Materials chemistry

CoFe Nanoalloys Encapsulated in N-Doped Graphene Layers as a Pt-Free Multifunctional Robust Catalyst: Elucidating the Role of Co-Alloying and N-Doping

Barman (ours), Nanda

• Energy & catalysis
• Materials chemistry

Non-Precious Bimetallic CoCr Nanostructures Entrapped in Bamboo-Like Nitrogen-Doped Graphene Tube As a Robust Bifunctional Electrocatalyst for Total Water Splitting

Sarkar, Barman (ours), Nanda

• Energy & catalysis
• Materials chemistry

Ultrafast-Versatile-Domestic-Microwave-Oven Based Graphene Oxide Reactor for the Synthesis of Highly Efficient Graphene Based Hybrid Electrocatalysts

Barman (ours), Nanda

• Energy & catalysis

Facile and one-step synthesis of a free-standing 3D MoS2-rGO/Mo binder-free electrode for efficient hydrogen evolution reaction

Barman (ours), Das, Nanda

• Energy & catalysis

Facile synthesis of ultrafine Ru nanocrystal supported N-doped graphene as an exceptional hydrogen evolution electrocatalyst in both alkaline and acidic media

Barman (ours), Das, Nanda

• Energy & catalysis
• Materials chemistry

A noble and single source precursor for the synthesis of metal-rich sulphides embedded in an N-doped carbon framework for highly active OER electrocatalysts

Barman (ours), Nanda

• Energy & catalysis
• Materials chemistry

Prussian blue as a single precursor for synthesis of Fe/Fe3C encapsulated N-doped graphitic nanostructures as bi-functional catalysts

Barman (ours), Nanda

• Energy & catalysis
• Materials chemistry

Rapid reduction of GO by hydrogen spill-over mechanism by in situ generated nanoparticles at room temperature and their catalytic performance towards 4-nitrophenol reduction and ethanol oxidation

Barman (ours), Nanda

• Energy & catalysis

Si-mediated fabrication of reduced graphene oxide and its hybrids for electrode materials

Barman (ours), Nanda

• Energy & catalysis

Uninterrupted galvanic reaction for scalable and rapid synthesis of metallic and bimetallic sponges/dendrites as efficient catalysts for 4-nitrophenol reduction

Barman (ours), Nanda

• Energy & catalysis

Hexamethylenetetramine mediated simultaneous nitrogen doping and reduction of graphene oxide for a metal-free SERS substrate

Barman (ours), Nanda

• Energy & catalysis

Excellent performance of Pt-free cathode in alkaline direct methanol fuel cell at room temperature

Goswami, Nandan, Barman (ours) et al.

• Energy & catalysis

Instantaneous reduction of graphene oxide at room temperature

Barman (ours), Mahanandia, Nanda

• Energy & catalysis

The dual role of Zn-acid medium for one-step rapid synthesis of M@rGO (M = Au, Pt, Pd and Ag) hybrid nanostructures at room temperature

Barman (ours), Nanda

• Energy & catalysis