ARNAB MANDAL

Nanocrystals and Applications:

• Synthesis and characterization of metal halide perovskites (MHP) nanocrystals (NCs) with different dimensionalities (0D, 1D, 2D) by colloidal synthesis
• Synthesis and characterization of III-V semiconductor nanocrystals with a variety of compositions and structures
• Mechanistic elucidation of the optical properties of NCs (MHPs and III-V) and fabrication of light-emitting diodes (LEDs)

Layered Perovskites and Applications:

• Synthesis, characterization, and study of the effect of spacer ligands (both aliphatic and aromatic) of hybrid 2D layered perovskites (RP/DJ/ACI phase) and perovskitoids, especially for lead-free systems
• Optical property elucidation and optoelectronic applications [perovskite solar cells, photodetectors, and light emitting diodes]

• Qualification of IIT JAM (All India rank -161)
• DST-INSPIRE Fellowship
• CSIR-UGC NET (All India rank-56 and 42)
• Graduate Aptitude Test in Engineering (GATE), [2015,2016]

• Qualitative and quantitative Synthesis of nanomaterials by colloidal synthesis
• Synthesis of hybrid single crystals (micrometre-size crystals containing organic and inorganic counterparts)
• Structural characterization by powder X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), etc.
• Optical property measurements of nanomaterials and microcrystals by (UV-vis absorption spectra, photoluminescence spectra, quantum yield measurement, low-temperature spectral analysis, etc.)
• Synthesis of fluorescent materials with appreciable PLQY, which are applicable in LED technologies
• Conversion of light energy to electrical energy through different photovoltaic devices such as perovskite solar cells, and photodetectors
• Measurement of thermal conductivity for hybrid perovskites

• Nanocrystals and Applications
• Layered Perovskites and Applications

• Dion-Jacobson Tin-Halide Perovskites for Biased and Self-Powered Photodetection, Mandal, A.; Khuntia, S. K.; Mondal, D.; Mahadevan, P.; Bhattacharyya, S., J. Am. Chem. Soc., 2023, 145, 45, 24990-25002
• Phase transitions between Dion Jacobson Hybrid Layered Double Perovskites and 1D Perovskites for Potential-Biased and Self-Powered Ultraviolet and Visible Photodetection, Mandal, A.; Gupta, S.; Bhattacharyya, S., Chem. Sci., 2023, 14, 9770-9779
• Nano-Perovskite Photoactive Films for Optoelectronics and Photovoltaics, Mandal, A.; Hazra, V.; Bhattacharyya, S., J. Phys. Chem. C, 2023, 127, 11767-11779, Invited Perspective
• Spacer Switched Two-Dimensional Tin Bromide Perovskites Leading to Ambient-Stable near-Unity Photoluminescence Quantum Yield, Mandal, A.; Roy, S.; Mondal, A.; Gupta, S.; Pal, B.; Bhattacharyya, S., J. Phys. Chem. Lett., 2022, 13, 9103-9113
• Cs4CuSb2Cl12−xIx (x = 0-10) Nanocrystals for Visible Light Photodetection, Mandal, A.; Mondal, A.; Bhattacharyya, R.; Bhattacharyya, S., Nanotechnology, 2022, 33, 415403
• Thickness-Attuned CsPbBr3 Nanosheets with Enhanced p-Type Field Effect Mobility, Mandal, A.; Ghosh, A.; Senanayak, S.; Friend, R.; Bhattacharyya, S., J. Phys. Chem. Lett., 2021, 12, 1560-1566
• Photodetectors with High Responsivity by Thickness Tunable Mixed Halide Perovskite Nanosheets, Mandal, A.; Ghosh, A.; Ghosh, D.; Bhattacharyya, S., ACS Appl. Mater. Interfaces, 2021, 13, 43104-43114
• Core/Shell Nanocrystal Tailored Carrier Dynamics in Hysteresisless Perovskite Solar Cells with ∼20% Efficiency and Long Operational Stability, Ghosh, A.; Chaudhary, D. K.; Mandal, A.; Prodhan, S.; Chauhan, K. K.; Vihari, S.; Gupta, G.; Datta, P. K.; Bhattacharyya, S., J. Phys. Chem. Lett., 2019, 11, 591-600
• Thermal Nonlinear Refraction in Cesium Lead Halide Perovskite Nanostructure Colloids, Roy, S.; Mandal, A.; Raj R., A.; Bhattacharyya, S.; Pal, B., J. Phys. Chem. C, 2020, 124, 15558-15564
• Heterovalent Substitution in Mixed Halide Perovskite Quantum Dots for Improved and Stable Photovoltaic Performance, Ghosh, D.; Ali, M. Y.; Ghosh, A.; Mandal, A.; Bhattacharyya, S., J. Phys. Chem. C, 2021, 125, 5485-5493
• An Unconventional Route to an Ambipolar Azaheterocycle and its in Situ Generated Radical Anion, Das, S.; Choudhury, A.; Mandal, A.; Kumar, C.; Ranjan Sahoo, S.; Bedi, A.; Shekhar Karmakar, H.; Gopal Ghosh, N.; Dey, S.; Krishnan Iyer, P.; et al., Org. Biomol. Chem., 2021, 19, 5114-5120
• 4nπ Stable Multitasking Azapentacene: Acidochromism, Hole Mobility, and Visible Light Photoresponse, Das, S.; Mandal, A.; Alam, M. T.; Kumar, C.; Sarkar, A.; Senanayak, S. P.; Bhattacharyya, S.; Zade, S. S., ACS Appl.Mater. Interfaces, 2022, 14, 37982-37989
• Carrier Thermalization and Zero-Point Bandgap Renormalization in Halide Perovskites from the Urbach Tails of the Emission Spectrum, Mukhuti, K.; Mandal, A.; Roy, B.; Bhattacharyya, S.; Bansal, B., Appl. Phys. Lett., 2022, 121, 182104
• New Lead-free Hybrid Layered Double Perovskite Halides: Synthesis, Structural Transition and Ultralow Thermal Conductivity, Mandal, A.; Goswami, S.; Das, S.; Swain, D.; Biswas, K., Angew. Chem. Int. Ed., 2024, e202406616
• Optoelectronic insights of lead-free layered halide perovskites, Hazra, H.; Mandal, A.; Bhattacharyya, S., Chem. Sci., 2024, 15, 7374-7393
• Synthesis and Soft Crystal Structure-Induced Broad Emission in (NH3C6H12NH3)InBr5
• 2H2O, Biswas, S.; Mandal, A.; Swain, D.; Biswas, K., Chem. Commun., 2024, 60, 7757-7760, # = equal contribution

ARNAB MANDAL, 08/07/2024, Bengaluru, India

English, Bengali and Hindi