Sudipta Seth

@hofkenslab.com

Postdoctoral researcher at the Molecular Imaging and Photonics, Department of Chemistry, KU Leuven
Prof. Johan Hofkens

Sudipta Seth


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https://researchid.co/sudiptaseth

RESEARCH, TEACHING, or OTHER INTERESTS

Spectroscopy, Physical and Theoretical Chemistry, Electronic, Optical and Magnetic Materials, Materials Chemistry
36

Scopus Publications

2148

Scholar Citations

17

Scholar h-index

26

Scholar i10-index

Scopus Publications

  • Room temperature collective blinking and photon bunching from CsPbBr3 quantum dot superlattice
    Qiwen Tan, Sudipta Seth, Boris Louis, Xiayan Wu, Nithin Pathoor, Toranosuke Takagi, Shun Omagari, Takumi Sannomiya, Johan Hofkens, Martin Vacha
    Nature Communications, 2026
    Development of quantum systems supporting collective many-body states is crucial for advancement of quantum technologies, and perovskite quantum dots (QDs) have emerged as promising quantum light sources. However, photon bunching, a key signature of collective states, has been observed in perovskites only at cryogenic temperatures. Here, we report collective blinking and photon bunching in perovskite QD superlattices at room temperature. Sub-wavelength-sized CsPbBr3 superlattices exhibit distinct two-level blinking, and demonstrate photon bunching with a degree of up to 3.9. Time-resolved photoluminescence and super-resolution imaging reveal long lifetime components, and emission spatially confined to regions tens of nanometers in size, observations consistent with long-range exciton migration to a localized energy trap within the superlattice. Power-dependent degree of bunching and analysis of the bunching dynamics point to biexciton–exciton cascade emission as the origin of photon bunching. These findings establish perovskite QD superlattices as a promising platform for room-temperature collective optical phenomena. Perovskite quantum dot superlattices have emerged as a promising platform for studying collective optical phenomena. Here the authors report collective photoluminescence blinking and photon bunching in a self-assembled CsPbBr3 quantum dot superlattice, which they attribute to cascade-like biexciton-exciton emission.
  • Machine learning for microscopy data analytics targeting real-time optical characterization of semiconductor nanocrystals
    Amitrajit Mukherjee, Robby Reynaerts, Bapi Pradhan, Sudipta Seth, Andreas T. Rösch, Tamali Banerjee, Lata Chouhan, Handong Jin, Christian Sternemann, Michael Paulus, Luca Leoncino, Kunal S. Mali, Steven De Feyter, Maarten B. J. Roeffaers, E. W. Meijer, Johan Hofkens, Elke Debroye
    Nature Communications, 2026
    Semiconductor nanocrystals with uniform morphology and composition are expected to show consistent responses during light-matter interactions. However, microscopy reveals significant variations in their photoluminescence blinking patterns, even under identical experimental conditions. This discrepancy arises from differences in crystal defects and nonradiative trap states. As a result, heterogeneous blinking patterns serve as valuable indicator of material quality, uncovering several concealed features through statistical analysis of large datasets. Nonetheless, efficient segregation and analysis of numerous blinking trajectories remain a challenge due to laborious calculations, computational bottlenecks, and manual intervention. In this study, we introduce a robust unsupervised machine learning (UML) assisted module to cluster high-dimensional blinking patterns in near-real-time, while calculating category-wise power spectral densities (PSD) to investigate active traps. Furthermore, we explore the impact of data preprocessing on clustering performance. The ‘clustering-segregation-analysis’ (UML-PSD) methodology demonstrates versatility, paving a way to advance contemporary (micro)spectroscopy, specifically for rapid and cost-effective optical characterization of semiconductor nanocrystals.
  • Arm-Length-Controlled CsPbBr3 Nanocrystals for Tunable Optical and Assembly Behavior
    Irina Skvortsova, Sudipta Seth, Juliette Zito, Robin Girod, Bob Van Hout, Annick De Backer, Tom Stoops, Sergey Abakumov, Evgenii Vlasov, Tejmani Behera, Sandra Van Aert, Elke Debroye, Johan Hofkens, Sara Bals
    Advanced Materials, 2026
    Colloidal cesium lead bromide (CsPbBr 3 ) nanocrystals (NCs) are excellent candidates for various photonic and optoelectronic applications due to their bright and stable green emission. Here, we establish arm length control as a central structural parameter that governs both the optical properties of individual CsPbBr 3 NCs and their self‐assembly behavior. Armed NCs, featuring a cubic core with multiple protruding arms, are synthesized by controlling seed size, concentration, and injection temperature, while arm length is tuned via cesium oleate concentration. Prolonged storage in toluene is shown to lead to a time‐dependent morphological evolution from armed NCs to 26‐faceted rhombicuboctahedra, with short‐armed structures as intermediates. NCs with a longer arm length yield enhanced radiative efficiency, extended photoluminescence (PL) lifetimes, and suppressed blinking, making such NCs suitable for light‐emitting devices and quantum photonic applications. In contrast, short‐armed NCs exhibit faster recombination, stronger PL intermittency, and increased surface accessibility, which are favorable for sensing and high‐speed single‐photon emission. The arm length also governs self‐assembly behavior, hereby opening new possibilities for applications. Armed NCs form densely 3D‐packed assemblies with tunable configurations. This work demonstrates how arm length tuning expands the functional potential of CsPbBr 3 NCs by linking morphological control to both optical response and self‐assembly characteristics.
  • High Resolution Imaging of Nonequilibrium Colloidal Self-Assembly via Photofixation
    Jagannath Satpathy, Jim Jui-Kai Chen, Gang Wen, Hiroshi Masuhara, Sudipta Seth, Volker Leen, Susana Rocha, Johan Hofkens, Boris Louis, Roger Bresolí-Obach
    ACS Nano, 2026
    The self-organization of colloidal nanoparticles into complex structures, both in equilibrium and out-of-equilibrium, is a growing area in colloidal science with potential for creating functional materials. While equilibrium assemblies form stable and periodic structures, out-of-equilibrium (or active) assemblies exhibit dynamic, reconfigurable behavior under external stimuli. Therefore, understanding the structure-function relationships in these assemblies remains challenging due to their transient nature and limitations of current characterization methods. In this work, we present a methodology termed Fixation and Resolving of Colloidal Active Matter Ensembles (FRAME). FRAME combines UV photopolymerization to fix nonequilibrium colloidal assemblies with high-resolution imaging techniques, including 3D confocal microscopy, SEM and 3D STED super-resolution imaging, for subsequent structural characterization. We applied this method to Optical Matter (OM) structures formed within an optical trap at the glass/water interface. Using FRAME, we conducted a detailed analysis of OM structures composed of colloidal nanoparticles ranging from 200 nm to 1 μm. We demonstrate the robustness of this method by validating that the fixation process does not alter structural properties, allowing for accurate structural analysis. FRAME offers a distinct approach for investigating nonequilibrium colloidal assemblies, enabling the way for their rational design and application across a broad range of colloidal systems.
  • Programmable Shape-Directed Optical Binding of Plasmonic Nanoparticles
    Jim Jui‐Kai Chen, Ashish Kar, Pengfei Yu, Ana Sánchez Iglesias, Chih‐Hao Huang, Jagannath Satpathy, Jianfang Wang, Luis M. Liz‐Marzán, Hiroshi Masuhara, Roger Bresolí‐Obach, Sudipta Seth, Susana Rocha, Boris Louis, Johan Hofkens
    Advanced Optical Materials, 2025
    Controlling the organization of plasmonic nanoparticles with optical forces is essential for designing reconfigurable light‐responsive materials. However, the role of particle shape in determining optical binding geometries remains unresolved. Here, it is demonstrated that the interplay between gold nanoparticle (Au NP) morphology and optical scattering governs distinct near‐field and far‐field configurations under optical trapping at a water‐glass interface. Au spheres, rods, plates, and decahedra exhibit characteristic orientations and binding behaviors that directly correlate with their shape‐dependent scattering responses to linearly polarized near‐infrared lasers. By tuning the trapping wavelength, transitions in interparticle spacing, orientation, and collective arrangement are induced across two‐, three‐, and five‐particle systems. These results establish NP shape as a versatile design parameter for programming optical matter, offering new opportunities for dynamic nanoscale assembly, tunable plasmonic interactions, and light‐driven metamaterials.
  • From mapping to manipulation: 3D insights into dielectrophoresis and electrokinetics for advanced sorting for Colloidal memory applications
    Flip De Jong, Pablo Diez-Silva, Jui-kai Chen, Sudipta Seth, Harishankar Balakrishnan, Bing-Yang Shih, Maarten Rosmeulen, Susana Rocha, Andrey Klymchenko, Luis Liz-Marzan, Roger Bresoli-Obach, Manuel I. Marques, Rafael Delgado Buscalioni, Johan Hofkens, Boris Louis
    Proceedings of SPIE the International Society for Optical Engineering, 2025
    The precise manipulation of nanoscale particles is essential for advancing applications in colloidal selfassembly, targeted sorting, and emerging paradigms such as colloidal memory. Here, we present a high-speed multiplane 3D imaging platform that enables direct visualization and quantification of dielectrophoretic (DEP) forces and electrokinetic flows acting on individual nanoparticles in real time. Using 200 nm dye-doped polystyrene particles, we map both positive and negative DEP regimes, capturing spatial force distributions with sub-50 nm axial resolution and frame rates exceeding 100 fps. Our approach reveals distinct particle behaviors across frequency regimes, including trapping near electrodes under positive DEP and levitation above the surface under negative DEP. In addition, we characterize electrokinetic flow fields in 3D, which play a critical role at higher voltages. This methodology provides a robust experimental framework for investigating DEP manipulation schemes, validating theoretical models, and selectively addressing particle mixtures, a key requirement for future molecular machines and frequency-controlled colloidal memory systems.
  • Unveiling the Local Fate of Charge Carriers in Halide Perovskite Thin Films via Correlation Clustering Imaging
    Sudipta Seth, Boris Louis, Koki Asano, Toon Van Roy, Maarten B. J. Roeffaers, Elke Debroye, Ivan G. Scheblykin, Martin Vacha, Johan Hofkens
    Chemical and Biomedical Imaging, 2025
    High Resolution Image Download MS PowerPoint Slide As the field of metal halide perovskites matures, a range of compositionally different perovskite films has found a place in efficient optoelectronic devices. These films feature variable local structural stability, carrier diffusion, and recombination, while there is still a lack of easy-to-implement generic protocols for high-throughput characterization of these variable properties. Correlation clustering imaging (CLIM) is a recently developed tool that resolves peculiarities of local photophysics by assessing the dynamics of photoluminescence detected by wide-field optical microscopy. We demonstrate the capability of CLIM as a high-throughput characterization tool of perovskite films using MAPbI 3 (MAPI) and triple cation mixed halide (TCMH) perovskites as examples where it resolves the interplay of carrier diffusion, recombination, and defect dynamics. We found significant differences in the appearance of metastable defect states in these two films. Despite a better surface quality and larger grain size, MAPI films showed more pronounced effects of fluctuating defect states than did TCMH films. As CLIM shows a significant difference between materials known to lead to different solar cell efficiencies, it can be considered a tool for quality control of thin films for perovskite optoelectronic devices.
  • In Operando Locally-Resolved Photophysics in Perovskite Solar Cells by Correlation Clustering Imaging
    Boris Louis, Sudipta Seth, Qingzhi An, Ran Ji, Yana Vaynzof, Johan Hofkens, Ivan G. Scheblykin
    Advanced Materials, 2025
    The instability of metal halide perovskites limits the commercialization of solar cells despite their impressive efficiencies. This instability, driven by photo‐induced ion migration, leads to material restructuring, defect formation, degradation, and defect healing. However, these same “unwanted” properties enable to propose Correlation Clustering Imaging (CLIM), a technique that detects local photoluminescence (PL) fluctuations through wide‐field fluorescence microscopy. It is shown that such fluctuations are present in high‐quality perovskites and their corresponding solar cells. CLIM successfully visualizes the polycrystalline grain structure in perovskite films, closely matching electron microscopy images. The analysis of fluctuations reveals a dominant metastable defect responsible for the fluctuations. In solar cells in short‐circuit conditions, these fluctuations are significantly larger, and corresponding correlated regions extend up to 10 micrometers, compared to 2 micrometers in films. It is proposed that the regions resolved by CLIM in solar cells possess a common pool of charge extraction channels, which fluctuate and cause PL to vary. Since PL fluctuations reflect non‐radiative recombination processes, CLIM provides valuable insights into the structural and functional dynamics of carrier transport, ion migration, defect behavior, and recombination losses. CLIM offers a non‐invasive approach to understanding luminescent materials and devices in operando, utilizing contrasts based on previously untapped properties.
  • From halide perovskite nanocrystals to supercrystals: fundamentals and applications
    S. L. Aneesha, Yifei Xia, Takuya Okamoto, Deepika Gaur, Sudipta Seth, Johan Hofkens, Lakshminarayana Polavarapu, Vasudevanpillai Biju
    Chemical Society Reviews, 2025
    Halide perovskite supercrystals (or superlattices) are electronically coupled nanomaterials, such as nanocrystals, quantum dots, or nanoplatelets that offer collective optical and electronic properties distinct from those of their constituents.
  • Unconventional Optical Matter of Hybrid Metal-Dielectric Nanoparticles at Interfaces
    Boris Louis, Chih-Hao Huang, Marc Melendez, Ana Sánchez-Iglesias, Jorge Olmos-Trigo, Sudipta Seth, Susana Rocha, Rafael Delgado-Buscalioni, Luis M. Liz-Marzán, Manuel I. Marqués, Hiroshi Masuhara, Johan Hofkens, Roger Bresolí-Obach
    ACS Nano, 2024
    Optical matter, a transient arrangement formed by the interaction of light with micro/nanoscale objects, provides responsive and highly tunable materials that allow for controlling and manipulating light and/or matter. A combined experimental and theoretical exploration of optical matter is essential to advance our understanding of the phenomenon and potentially design applications. Most studies have focused on nanoparticles composed of a single material (either metallic or dielectric), representing two extreme regimes, one where the gradient force (dielectric) and one where the scattering force (metallic) dominates. To understand their role, it is important to investigate hybrid materials with different metallic-to-dielectric ratios. Here, we combine numerical calculations and experiments on hybrid metal-dielectric core-shell particles (200 nm gold spheres coated with silica shells with thicknesses ranging from 0 to 100 nm). We reveal how silica shell thickness critically influences the essential properties of optical binding, such as interparticle distance, reducing it below the anticipated optical binding length. Notably, for silica shells thicker than 50 nm, we observed a transition from a linear arrangement perpendicular to polarization to a hexagonal arrangement accompanied by a circular motion. Further, the dynamic swarming assembly changes from the conventional dumbbell-shaped to lobe-like morphologies. These phenomena, confirmed by both experimental observations and dynamic numerical calculations, demonstrate the complex dynamics of optical matter and underscore the potential for tuning its properties for applications.
  • Enhancing the X-ray Sensitivity of Cs2AgBiBr6 Double Perovskite Single Crystals through Cation Engineering
    Donato Valli, Heng Zhang, Marián Betušiak, Giacomo Romolini, Arne Meulemans, Daniel Escudero, Sudipta Seth, Qing Zhao, Zonglong Zhu, Mischa Bonn, Eduard Belas, Roman Grill, Hai Wang, Johan Hofkens, Elke Debroye
    ACS Applied Optical Materials, 2024
  • Amine-Free Multi-Faceted CsPbBr3 Nanocrystals for Complete Suppression of Long-Lived Dark States
    N. V. S. Praneeth, Syed Akhil, Amitrajit Mukherjee, Sudipta Seth, Saumyakanti Khatua, Nimai Mishra
    Advanced Optical Materials, 2024
  • Photoluminescence Polarization of MAPbBr3Perovskite Nanostructures. Can the Dielectric Contrast Effect Explain It?
    Juanzi Shi, Igor Ryabov, Sudipta Seth, Pavel A. Frantsuzov, Safi Rafie-Zinedine, Andreas Walther, Maria E. Messing, Xiangang Wu, Wengao Lu, Haizheng Zhong, Ivan G. Scheblykin
    ACS Photonics, 2022
  • Are Shockley-Read-Hall and ABC models valid for lead halide perovskites?
    Alexander Kiligaridis, Pavel A. Frantsuzov, Aymen Yangui, Sudipta Seth, Jun Li, Qingzhi An, Yana Vaynzof, Ivan G. Scheblykin
    Nature Communications, 2021
  • Presence of Maximal Characteristic Time in Photoluminescence Blinking of MAPbI3 Perovskite
    Sudipta Seth, Eduard A. Podshivaylov, Jun Li, Marina Gerhard, Alexander Kiligaridis, Pavel A. Frantsuzov, Ivan G. Scheblykin
    Advanced Energy Materials, 2021
  • Dark Excitons of the Perovskites and Sensitization of Molecular Triplets
    Navendu Mondal, Apurba De, Sudipta Seth, Tasnim Ahmed, Somnath Das, Sumanta Paul, Rajesh Kumar Gautam, Anunay Samanta
    ACS Energy Letters, 2021
  • Highly efficient energy transfer from a water soluble zinc silver indium sulphide quantum dot to organic J-aggregates
    Naupada Preeyanka, Himani Dey, Sudipta Seth, Abdur Rahaman, Moloy Sarkar
    Physical Chemistry Chemical Physics, 2020
  • Highly Efficient Energy Transfer from Fluorescent Gold Nanoclusters to Organic J-Aggregates
    Somnath Banerjee, Naupada Preeyanka, Himani Dey, Sudipta Seth, Abdur Rahaman, Moloy Sarkar
    Journal of Physical Chemistry C, 2020
  • Tackling the Defects, Stability, and Photoluminescence of CsPbX3 Perovskite Nanocrystals
    Sudipta Seth, Tasnim Ahmed, Apurba De, Anunay Samanta
    ACS Energy Letters, 2019
  • Doping and Photon Induced Defect Healing of Hybrid Perovskite Thin Films: An Approach Towards Efficient Light Emitting Diodes
    Anil Kanwat, Won‐Chul Choi, Sudipta Seth, Jin Jang
    Chemnanomat, 2019
  • Electrostatically Driven Förster Resonance Energy Transfer between a Fluorescent Metal Nanoparticle and J-Aggregate in an Inorganic-Organic Nanohybrid Material
    Aman Kumar Agrawal, Prabhat Kumar Sahu, Sudipta Seth, Moloy Sarkar
    Journal of Physical Chemistry C, 2019
  • Broadband ultrafast nonlinear optical studies revealing exciting multi-photon absorption coefficients in phase pure zero-dimensional Cs 4 PbBr 6 perovskite films
    K. N. Krishnakanth, Sudipta Seth, Anunay Samanta, S. Venugopal Rao
    Nanoscale, 2019
  • Mechanistic Investigation of the Defect Activity Contributing to the Photoluminescence Blinking of CsPbBr3 Perovskite Nanocrystals
    Tasnim Ahmed, Sudipta Seth, Anunay Samanta
    ACS Nano, 2019
  • Photoluminescence Flickering and Blinking of Single CsPbBr 3 Perovskite Nanocrystals: Revealing Explicit Carrier Recombination Dynamics
    Sudipta Seth, Tasnim Ahmed, Anunay Samanta
    Journal of Physical Chemistry Letters, 2018
  • Striking Similarities in the Fluorescence Behavior between Carbon Dots and Ionic Liquids: Toward Understanding the Fluorescence Behavior of Carbon Dots
    Subhasis Roy, Naupada Preeyanka, Debashis Majhi, Sudipta Seth, Moloy Sarkar
    Journal of Physical Chemistry C, 2018
  • Boosting the Photoluminescence of CsPbX3 (X = Cl, Br, I) Perovskite Nanocrystals Covering a Wide Wavelength Range by Postsynthetic Treatment with Tetrafluoroborate Salts
    Tasnim Ahmed, Sudipta Seth, Anunay Samanta
    Chemistry of Materials, 2018
  • Broadband femtosecond nonlinear optical properties of CsPbBr3 perovskite nanocrystals
    Katturi Naga Krishnakanth, Sudipta Seth, Anunay Samanta, Soma Venugopal Rao
    Optics Letters, 2018
  • Photoluminescence of Zero-Dimensional Perovskites and Perovskite-Related Materials
    Sudipta Seth, Anunay Samanta
    Journal of Physical Chemistry Letters, 2018
  • Differences in the behavior of dicationic and monocationic ionic liquids as revealed by time resolved-fluorescence, NMR and fluorescence correlation spectroscopy
    Debashis Majhi, Sudipta Seth, Moloy Sarkar
    Physical Chemistry Chemical Physics, 2018
  • Fluorescent Phase-Pure Zero-Dimensional Perovskite-Related Cs4PbBr6 Microdisks: Synthesis and Single-Particle Imaging Study
    Sudipta Seth, Anunay Samanta
    Journal of Physical Chemistry Letters, 2017
  • A facile methodology for engineering the morphology of CsPbX3 perovskite nanocrystals under ambient condition
    Sudipta Seth, Anunay Samanta
    Scientific Reports, 2016
  • Nuclear magnetic resonance, fluorescence correlation spectroscopy and time-resolved fluorescence anisotropy studies of intermolecular interactions in bis(1-methyl-1H-imidazol-3-ium-3-yl)dihydroborate bis(trifluoromethylsulfonyl)amide and its mixtures with various cosolvents
    Prabhat Kumar Sahu, Raju Nanda, Sudipta Seth, Arindam Ghosh, Moloy Sarkar
    Chemical Physics Letters, 2016
  • Fluorescence Blinking and Photoactivation of All-Inorganic Perovskite Nanocrystals CsPbBr3 and CsPbBr2I
    Sudipta Seth, Navendu Mondal, Satyajit Patra, Anunay Samanta
    Journal of Physical Chemistry Letters, 2016
  • Probing the interactions of structurally similar but chemically distinguishable organic solutes with 1-ethyl-3-methylimidazolium alkyl sulfate (alkyl = ethyl, hexyl and octyl) ionic liquids through fluorescence, NMR and fluorescence correlation spectroscopy (FCS) studies
    Debashis Majhi, Prabhat Kumar Sahu, Sudipta Seth, Moloy Sarkar
    Physical Chemistry Chemical Physics, 2016
  • Effect of Controlled Deposition of ZnS Shell on the Photostability of CdTe Quantum Dots as Studied by Conventional Fluorescence and FCS Techniques
    Satyajit Patra, Sudipta Seth, Anunay Samanta
    Chemphyschem, 2015
  • Contrasting Response of Two Dipolar Fluorescence Probes in a Leucine-Based Organogel and Its Implications
    Sivalingam Soumya, Sudipta Seth, Sneha Paul, Anunay Samanta
    Chemphyschem, 2015

RECENT SCHOLAR PUBLICATIONS

  • Arm‐Length‐Controlled CsPbBr 3 Nanocrystals for Tunable Optical and Assembly Behavior
    I Skvortsova, S Seth, J Zito, R Girod, B Van Hout, A De Backer, T Stoops, ...
    Advanced Materials 38 (23), e19211 , 2026
    2026
    Citations: 1
  • Room temperature collective blinking and photon bunching from CsPbBr 3 quantum dot superlattice
    Q Tan, S Seth, B Louis, X Wu, N Pathoor, T Takagi, S Omagari, ...
    Nature Communications , 2026
    2026
  • High Resolution Imaging of Nonequilibrium Colloidal Self-Assembly via Photofixation
    J Satpathy, JJK Chen, G Wen, H Masuhara, S Seth, V Leen, S Rocha, ...
    ACS nano 20 (7), 6287-6299 , 2026
    2026
  • Machine learning for microscopy data analytics targeting real-time optical characterization of semiconductor nanocrystals
    A Mukherjee, R Reynaerts, B Pradhan, S Seth, AT Rösch, T Banerjee, ...
    Nature Communications , 2026
    2026
  • Programmable Shape‐Directed Optical Binding of Plasmonic Nanoparticles
    JJK Chen, A Kar, P Yu, AS Iglesias, CH Huang, J Satpathy, J Wang, ...
    Advanced Optical Materials 13 (34), e03071 , 2025
    2025
    Citations: 1
  • M3Scope a 3D multimode multiplane microscope for imaging nanoscale dynamics in soft matter
    S Huysecom, F Bevilacqua, RB Obach, S Seth, LM Liz-Marzan, J Hofkens, ...
    arXiv preprint arXiv:2511.10174 , 2025
    2025
  • Microscopic Intricacies of Self-Healing in Halide Perovskite-Charge Transport Layer Heterostructures
    T Behera, B Louis, L Paesen, RV Brande, K Asano, M Vacha, M Roeffaers, ...
    arXiv preprint arXiv:2510.11948 , 2025
    2025
  • From mapping to manipulation: 3D insights into dielectrophoresis and electrokinetics for advanced sorting toward colloidal memory applications
    F de Jong, P Diez-Silva, JK Chen, S Seth, H Balakrishnan, BY Shih, ...
    Molecular and Nanophotonic Machines, Devices, and Applications VIII 13592, 53-59 , 2025
    2025
  • Three-dimensional optical reconstruction of colloidal electrokinetics via multiplane imaging
    F de Jong, P Diez-Silva, JK Chen, R Pérez-Peláez, S Seth, ...
    arXiv preprint arXiv:2503.23839 , 2025
    2025
    Citations: 2
  • INTERMITTENCY OF THE NEAR-INFRARED LUMINESCENCE FROM CsPbBr3 MICROCRYSTALS
    J Vandenwijngaerden, D Santantonio, H Balakrishnan, R Bresoli-Obach, ...
    Near-Infrared Luminescence from Deep Defects in CsPbBr3 Perovskite, 177 , 2025
    2025
  • Unveiling the local fate of charge carriers in halide perovskite thin films via correlation clustering imaging
    S Seth, B Louis, K Asano, T Van Roy, MBJ Roeffaers, E Debroye, ...
    Chemical & Biomedical Imaging 3 (4), 244-252 , 2025
    2025
    Citations: 7
  • In Operando Locally‐Resolved Photophysics in Perovskite Solar Cells by Correlation Clustering Imaging
    B Louis, S Seth, Q An, R Ji, Y Vaynzof, J Hofkens, IG Scheblykin
    Advanced Materials 37 (7), 2413126 , 2025
    2025
    Citations: 16
  • From halide perovskite nanocrystals to supercrystals: fundamentals and applications
    SL Aneesha, Y Xia, T Okamoto, D Gaur, S Seth, J Hofkens, L Polavarapu, ...
    Chemical Society Reviews 54, 9585-9611 , 2025
    2025
    Citations: 10
  • Unconventional Optical Matter of Hybrid Metal–Dielectric Nanoparticles at Interfaces
    B Louis, CH Huang, M Melendez, A Sánchez-Iglesias, J Olmos-Trigo, ...
    ACS nano 18 (47), 32746-32758 , 2024
    2024
    Citations: 11
  • Enhancing the X-ray Sensitivity of Cs 2 AgBiBr 6 Double Perovskite Single Crystals through Cation Engineering
    D Valli, H Zhang, M Betušiak, G Romolini, A Meulemans, D Escudero, ...
    ACS Applied Optical Materials 2 (10), 2075-2084 , 2024
    2024
    Citations: 17
  • High resolution imaging of non-equilibrium colloidal self-assembly enabled by photopolymerization
    J Satpathy, JK Chen, G Wen, H Masuhara, S Seth, V Leen, S Rocha, ...
    ChemRxiv 2024 (0920) , 2024
    2024
    Citations: 1
  • Amine‐Free Multi‐Faceted CsPbBr 3 Nanocrystals for Complete Suppression of Long‐Lived Dark States
    NVS Praneeth, S Akhil, A Mukherjee, S Seth, S Khatua, N Mishra
    Advanced Optical Materials 12 (16), 2303222 , 2024
    2024
    Citations: 17
  • Correlation Clustering Imaging: A method for Functional Mapping of Semiconductor materials and photovoltaic devices in operando
    B Louis, S Seth, Q An, R Ji, Y Vaynzof, J Hofkens, I Scheblykin
    ChemRxiv 2024 (0308) , 2024
    2024
    Citations: 1
  • Photoluminescence Polarization of MAPbBr 3 Perovskite Nanostructures. Can the Dielectric Contrast Effect Explain It?
    J Shi, I Ryabov, S Seth, PA Frantsuzov, S Rafie-Zinedine, A Walther, ...
    Acs Photonics 9 (12), 3888-3898 , 2022
    2022
    Citations: 3
  • Presence of Maximal Characteristic Time in Photoluminescence Blinking of MAPbI 3 Perovskite
    S Seth, EA Podshivaylov, J Li, M Gerhard, A Kiligaridis, PA Frantsuzov, ...
    Advanced Energy Materials 11 (44), 2102449 , 2021
    2021
    Citations: 26

MOST CITED SCHOLAR PUBLICATIONS

  • Tackling the Defects, Stability, and Photoluminescence of CsPbX 3 Perovskite Nanocrystals
    S Seth, T Ahmed, A De, A Samanta
    ACS Energy Letters 4 (7), 1610-1618 , 2019
    2019
    Citations: 335
  • Boosting the Photoluminescence of CsPbX 3 (X = Cl, Br, I) Perovskite Nanocrystals Covering a Wide Wavelength Range by Postsynthetic Treatment with …
    T Ahmed, S Seth, A Samanta
    Chemistry of Materials 30 (11), 3633-3637 , 2018
    2018
    Citations: 323
  • A Facile Methodology for Engineering the Morphology of CsPbX 3 Perovskite Nanocrystals under Ambient Condition
    S Seth, A Samanta
    Scientific reports 6 (1), 37693 , 2016
    2016
    Citations: 196
  • Fluorescence Blinking and Photoactivation of All-Inorganic Perovskite Nanocrystals CsPbBr 3 and CsPbBr 2 I
    S Seth, N Mondal, S Patra, A Samanta
    The journal of physical chemistry letters 7 (2), 266-271 , 2016
    2016
    Citations: 193
  • Fluorescent Phase-Pure Zero-Dimensional Perovskite-Related Cs 4 PbBr 6 Microdisks: Synthesis and Single-Particle Imaging Study
    S Seth, A Samanta
    The Journal of Physical Chemistry Letters 8 (18), 4461-4467 , 2017
    2017
    Citations: 163
  • Photoluminescence of zero-dimensional perovskites and perovskite-related materials
    S Seth, A Samanta
    The Journal of Physical Chemistry Letters 9 (1), 176-183 , 2018
    2018
    Citations: 126
  • Are Shockley-Read-Hall and ABC models valid for lead halide perovskites?
    A Kiligaridis, PA Frantsuzov, A Yangui, S Seth, J Li, Q An, Y Vaynzof, ...
    Nature communications 12 (1), 3329 , 2021
    2021
    Citations: 120
  • Broadband ultrafast nonlinear optical studies revealing exciting multi-photon absorption coefficients in phase pure zero-dimensional Cs 4 PbBr 6 perovskite films
    KN Krishnakanth, S Seth, A Samanta, SV Rao
    Nanoscale 11 (3), 945-954 , 2019
    2019
    Citations: 102
  • Broadband femtosecond nonlinear optical properties of CsPbBr 3 perovskite nanocrystals
    KN Krishnakanth, S Seth, A Samanta, SV Rao
    Optics letters 43 (3), 603-606 , 2018
    2018
    Citations: 97
  • Photoluminescence Flickering and Blinking of Single CsPbBr 3 Perovskite Nanocrystals: Revealing Explicit Carrier Recombination Dynamics
    S Seth, T Ahmed, A Samanta
    The Journal of Physical Chemistry Letters 9 (24), 7007-7014 , 2018
    2018
    Citations: 93
  • Mechanistic Investigation of the Defect Activity Contributing to the Photoluminescence Blinking of CsPbBr 3 Perovskite Nanocrystals
    T Ahmed, S Seth, A Samanta
    ACS nano 13 (11), 13537-13544 , 2019
    2019
    Citations: 91
  • Dark excitons of the perovskites and sensitization of molecular triplets
    N Mondal, A De, S Seth, T Ahmed, S Das, S Paul, RK Gautam, A Samanta
    ACS Energy Letters 6 (2), 588-597 , 2021
    2021
    Citations: 33
  • Differences in the behavior of dicationic and monocationic ionic liquids as revealed by time resolved-fluorescence, NMR and fluorescence correlation spectroscopy
    D Majhi, S Seth, M Sarkar
    Physical Chemistry Chemical Physics 20 (11), 7844-7856 , 2018
    2018
    Citations: 29
  • Presence of Maximal Characteristic Time in Photoluminescence Blinking of MAPbI 3 Perovskite
    S Seth, EA Podshivaylov, J Li, M Gerhard, A Kiligaridis, PA Frantsuzov, ...
    Advanced Energy Materials 11 (44), 2102449 , 2021
    2021
    Citations: 26
  • ACS Energy Lett. 2019, 4, 1610; c) H. Huang, MI Bodnarchuk, S. V. Kershaw, MV Kovalenko, AL Rogach
    S Seth, T Ahmed, A De, A Samanta
    ACS Energy Lett 2, 2071 , 2017
    2017
    Citations: 21
  • Enhancing the X-ray Sensitivity of Cs 2 AgBiBr 6 Double Perovskite Single Crystals through Cation Engineering
    D Valli, H Zhang, M Betušiak, G Romolini, A Meulemans, D Escudero, ...
    ACS Applied Optical Materials 2 (10), 2075-2084 , 2024
    2024
    Citations: 17
  • Amine‐Free Multi‐Faceted CsPbBr 3 Nanocrystals for Complete Suppression of Long‐Lived Dark States
    NVS Praneeth, S Akhil, A Mukherjee, S Seth, S Khatua, N Mishra
    Advanced Optical Materials 12 (16), 2303222 , 2024
    2024
    Citations: 17
  • Highly efficient energy transfer from fluorescent gold nanoclusters to organic j-aggregates
    S Banerjee, N Preeyanka, H Dey, S Seth, A Rahaman, M Sarkar
    The Journal of Physical Chemistry C 124 (9), 5009-5020 , 2020
    2020
    Citations: 17
  • Electrostatically Driven Förster Resonance Energy Transfer between a Fluorescent Metal Nanoparticle and J-Aggregate in an Inorganic–Organic Nanohybrid Material
    AK Agrawal, PK Sahu, S Seth, M Sarkar
    The Journal of Physical Chemistry C 123 (6), 3836-3847 , 2019
    2019
    Citations: 17
  • In Operando Locally‐Resolved Photophysics in Perovskite Solar Cells by Correlation Clustering Imaging
    B Louis, S Seth, Q An, R Ji, Y Vaynzof, J Hofkens, IG Scheblykin
    Advanced Materials 37 (7), 2413126 , 2025
    2025
    Citations: 16