Current research interests:

Techniques: Single molecule/particle spectroscopy, Ultrafast - ultraslow dynamics (femtoseconds - seconds) etc.

Inorganic Systems: Perovskite nanocrystals, Toxic metal free Quantum Dots etc.

Organic Systems: (Flexible) Photoluminescent crystals, Meta-fluorophores etc.

 

Perovskite nanocrystals


"Beyond Surface Facets and Morphology: Precision Silica Shelling for Enhanced Luminescence and Stability in Halide Perovskite Nanocrystals",

J. Am. Chem. Soc. 2025, 147, 45043-45056.


"Super-Absorber, Super-Bright, Nearly-Non-Blinking CsPbI3 Perovskite Nanocrystal",

Adv. Optical Mater. 2025, 13, 2402608.


"Transforming Exciton Dynamics in Perovskite Nanocrystal through Mn Doping",

Nanoscale 2023, 15, 6947-6953.


"Near-Ergodic CsPbBr3 Perovskite Nanocrystal with Minimal Statistical Aging",

J. Phys. Chem. Lett. 2021, 12, 10169-10174.


"Unravelling Halide Dependent Charge Carrier Dynamics in CsPb(Br/Cl)3 Perovskite Nanocrystals",

Nanoscale 2021, 13, 3654 - 3661.


"Extent of Shallow/Deep Trap States Beyond Conduction Band Minimum in Defect Tolerant CsPbBr3 Perovskite Quantum Dot: Control Over the Degree of Charge Carrier Recombination",

J. Phys. Chem. Lett. 2020, 11, 1702-1707.


"Instantaneous, Room Temperature, Open Air Atmosphere, Solution Phase Synthesis of Perovskite Quantum Dots through Halide Exchange Employing Non-Metal Based Inexpensive HCl/HI: Ensemble and Single Particle Spectroscopy",

Nanoscale Adv. 2019, 1, 3506-3513.

Toxic metal free Quantum Dots


"Beneficial Intrinsic Hole Trapping and Its Amplitude Variation in a Highly Photoluminescent Toxic-Metal-Free Quantum Dot",

J. Phys. Chem. Lett. 2023, 14, 260–266.


"Excitation-Energy-Dependent Photoluminescence Quantum Yield is Inherent to Optically Robust Core/Alloy-Shell Quantum Dots in a Vast Energy Landscape",

J. Phys. Chem. Lett. (Perspective Article(Invited)) 2022, 13, 2404-2417.


"Ultrafast Dynamics and Ultrasensitive Single Particle Spectroscopy of Optically Robust Core/Alloy Shell Semiconductor Quantum Dots",

Phys. Chem. Chem. Phys. (Perspective Article(Invited)) 2022, 24, 8578-8590.


"Near-Unity Photoluminescence Quantum Yield and Highly Suppressed Blinking in a Toxic-Metal-Free Quantum Dot",

J. Phys. Chem. Lett. 2021, 12, 1426-1431.


Ultrafast Dynamics and Ultrasensitive Single-Particle Intermittency in Small-Sized Toxic Metal Free InP-Based Core/Alloy-Shell/Shell Quantum Dots: Excitation Wavelength Dependency Toward Variation of PLQY",

J. Phys. Chem. C 2019, 123, 28502−28510.


"Suppressed Blinking Under Normal Air Atmosphere in Toxic Metal Free, Small Sized, InP Based Core/Alloy-Shell/Shell Quantum Dot",

J. Phys. Chem. Lett. 2019, 10, 4330-4338.


Highly Photoluminescent InP Based Core Alloy Shell QDs from Air Stable Precursors: Excitation Wavelength Dependent Photoluminescence Quantum Yield, Photoluminescence Decay Dynamics, and Single Particle Blinking Dynamics",

J. Phys. Chem. C 2018, 122, 964-973.

(Flexible) Photoluminescent crystals


"Charge-Transfer Mediated J-Aggregation in Red Emitting Ultra-Small-Single-Benzenic Meta-Fluorophore Crystals",

Chem. Sci. 2025, 16, 901–909.


"Mechanical-Bending-Induced Fluorescence Enhancement in Plastically Flexible Crystals of a GFP Chromophore Analogue",

Angew. Chem. Int. Ed. 2020, 59, 19878 –19883.

Meta-fluorophores


"Meta-Fluorophores: An Uncharted Ocean of Opportunities",

Chem. Commun. (Feature Article (Invited)) 2023, 59, 14370–14386.


"Innovative Strategy Toward Red Emission: Single-Benzenic, Ultrasmall Meta-Fluorophores",

J. Phys. Chem. C 2020, 124, 27049–27054.


"Meta-Fluors—A Unique Way To Create a 200 Da Ultrasmall Fluorophore Emitting in Red with Intense Stokes/Solvatochromic Shift: Imaging Subcellular Nanopolarity in Live Stem Cells",

J. Phys. Chem. C 2019, 123, 24786–24792.





Research Interest

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Techniques

Single Molecule/Particle Spectroscopy, Confocal/ TIRF/ Wide-Field Microscopy, Fluorescence Correlation Spectroscopy (FCS, FCCS, FLCS), Single Molecule/Particle Tracking, Ultrafast (Femtosecond) to Ultraslow (Millisecond) Dynamics, etc.

 

Processes

Exciton Dynamics, Resonance Energy Transfer (RET), etc.

 

Materials

Inorganic Systems : Perovskite nanocrystals, Toxic metal free Quantum Dots etc.
Organic Systems : (Flexible) Photoluminescent crystals, Meta-fluorophores etc.