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Dr. Sabyasachi Chakrabortty

Position
Adjunct Faculty
Unit
Faculty of Climate Change and Sustainability
Contact Info
[email protected]
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Qualification
Areas of Expertise
Selected Publications
Patents
Selected Research Projects
  1. PhD in Chemistry, National University of Singapore, Singapore (2013). 
  2. MSc in Chemistry, Indian Institute of Technology Madras, Chennai, India (2008).



  1. Hybrid Nanocrystals Synthesis, 
  2. Catalysis, 
  3. Renewable Energy, 
  4. Electrochemistry. 
  5. Carbon Materials, 
  6. Theranostic (Diagnostic + Therapy) nanomaterials
  1. Sivaguru, G.; Ghorui, U. K.; Mangalasseri, A.; Reza, S.; Dutta, R.; Ghosh, S.; Dalapati, G. K.; Thapa, R.; Chakrabortty, S.* “Cation Substituted Entropy Driven Cu–Mn–Zn–Cr–O Metal Oxide for Efficient Seawater Splitting and Hybrid Supercapacitors” Small, 2025, e10306.
  2. Biswas, B.*; Wong, T. K. S.*; Dalapati, G. K.*; Chakrabortty, S.* “Advanced Materials for Sustainable Energy and Decarbonization” ACS Applied Energy Materials, 2025, 8, 13999-14000.
  3. Ghorui, U. K.; Sivaguru, G.; Sk, M.; Thapa, R.; Sampath, A. M. V. R.; Sabyasachi Chakrabortty, S.* “Defect-Engineered N-Doped Graphene Oxide-ZnWO4 Nanocuboids: Advancing Oxygen Reduction and Photo-Assisted Methanol Oxidation Reactions” Small, 2025, 2505511.
  4. Ghorui, U. K.;  Sampath, A. M. V. R.; Sivaguru, G.; Dutta, R.;  Sangaraju, S.; Sabyasachi Chakrabortty, S.* “B-Doped GQD Supported Cobalt Sulfide Nanocomposite: A Defect Engineering Approach for Superior Oxygen Electrode Performance” Catalysis Today, 2025, 454, 115287 (1-14).
  5. Busi, K. B.; Majji, M.; Krishna, A. M. S.; Ball, W. B.; Dalapati, G. K.; Motapothula, M. R.; Chakrabortty, S.* “Effect of Surface Ligands on The Photocatalytic Hydrogen Production of Cu Nanoclusters” International Journal of Hydrogen Energy, 2025, 116, 279-287. 
  6. Bandaru, S.; George, N.; Sharma, B.; Palanivel, M.; Mukherjee, A.; Wu, W-Y.; Ghosh, K. K.; ball. W. B.; Gulyás, B. Z.; Padmanabhan, P.;* Ghosh, S.; Chakrabortty, S.* “Aqueous Based Ultra-Small Magnetic Cr doped CdSe Quantum Dots as a Potential Dual Imaging Probe in Biomedicine” Biomaterials Science, 2024, 12, 6338-6350. 
  7. Ghorui, U. K.; Sivaguru, G.; Teja, U. B.; Ramakrishna, S.; Ghosh, S.; Dalapati, G. K.; Chakrabortty, S.* “Anion-Exchange Membrane Water Electrolyzers for Green Hydrogen Generation: Advancement and Challenges for Industrial Application” ACS Applied Energy Materials, 2024, 7(18), 7649-7676. 
  8. Jayachandran, V.; Palanisami, S.; Paneerselvam, J.; Elango, M.; Chakrabortty, S.; Ghosh, S.; Albaqami, M. D.; Mohammad, S.; Sangaraju, S. “A new insight on surface chemistry and redox species of transition metal (Fe, Mn) doped CeO2-SnO2/Al2O3 nanocomposites for automobile emission control” Journal of Environmental Chemical Engineering, 2024, 12(5), 113896. 
  9. Sivaguru, G.; Ghorui, U. K.; Girirajan, M.; Dalapati, G. K.; Maram, P. S.; Ghosh, S.; Sangaraju, S.; Chakrabortty, S.* “Rational Design of Asymmetric Spinel/Defect Spinel (ZnMn2O4/Cu1.5Mn1.5O4) Nanocomposite-Based Supercapacitor Devices for Efficient Energy Storage with Improved Cycle Stability” ACS Applied Energy Materials, 2024, 7(17), 7205-7219. 
  10. Mariam, E.; Dalapati, G.K.;* Ghosh, S.; Sherin PA, T.; Chakrabortty, S.; Ramasubramanian, B.; Reddy, V. S.; Motapothula, M. R.; Kumar, A.; Ramakrishna, S.;* Krishnamurthy, S.* “Emerging Trends in Cooling Technologies for PV systems” Renewable and Sustainable Energy Reviews, 2024, 192, 114203 (1-23). 
  11. Naskar, N.; Liu, W.; Qi, H.; Stumper, A.; Fischer, S.; Diemant, T.; Behm, R. J.; Kaiser, U.; Rau, S.; Weil, T.; Chakrabortty, S.* “A Carbon Nanodot Based Near-Infrared Photosensitizer with a Protein-Ruthenium Shell for Low-Power Photodynamic Applications.” ACS Applied Materials & Interfaces, 2022, 14 (43), 48327-48340. 
  12. Krishna, A. M.S.; Dalapati, G. K. *; Chakrabortty, S. * et . al. “Photovoltaic/Photo-Electrocatalysis Integration for Green Hydrogen: A review” Energy Conversion & Management, 2022, 261, 115648. 
  13. Dalapati, G. K.; Chakrabortty, S. et . al. “Critical Review on SnO2 for Transparent Conductor and Electron Transport Layer: Impact on Dopants and Functionalization of SnO2 on Photovoltaic and Energy Storage Devices” J. Mater. Chem. A, 2021, 9, 16621-16684. 
  14. Naskar, N.; Schneidereit, M. F.; Huber, F.; Chakrabortty, S.; Veith, L.; Mezger, M.; Kirste, L.; Fuchs, T.; Diemant, T.; Weil, T.; Behm, R. J.; Thonke, K; Scholz, F. “Impact of Surface Chemistry and Doping Concentrations on Biofunctionalization of GaN/Ga‒In‒N Quantum Wells” Sensors 2020, 20(15), 4179. 
  15. Chakrabortty, S.; Agrawalla, B. K.; Stumper, A.; Vegi, N. M.; Fischer, S.; Reichardt, C.; Kögler, M.; Dietzek, B.; Feuring-Buske, M.; Buske, C.; Rau, S.; Weil, T. Mitochondria Targeted Protein-Ruthenium Photosensitizer for Efficient Photodynamic Applications. J. Am. Chem. Soc., 2017, 139, 2512-2519. 
  16. Chakrabortty, S.; Sison, M.; Wu, Y.; Ladenburger, A.; Pramanik, G.; Biskupek, J.; Extermann, J.; Kaiser, U.; Lasser, T.; Weil, T. NIR-emitting and Photo-thermal Active Nanogold for Mitochondria Targeting. Biomater. Sci. 2017, 5 (5), 966-971.  
  17. Chakrabortty, S.; Guchhait, A.; Ong, X.; Mishra, N.; Wu, W.-Y.; Jhon, M. H.; Chan, Y. Facet to Facet Linking of Shape Anisotropic Inorganic Nanocrystals with Site Specific and Stoichiometric Control. Nano Lett. 2016, 16, 6431–6436. 
  18. Chakrabortty, S.; Xing, G.; Xu, Y.; Ngiam, S. W.; Mishra, N.; Sum, T. C.; Chan, Y. Engineering Fluorescence in Au-Tipped, CdSe-Seeded CdS Nanoheterostructures. Small 2011, 7, 2847–2852. 
  19. Chakrabortty, S.; Yang, J. A.; Tan, Y. M.; Mishra, N.; Chan, Y. Asymmetric Dumbbells from Selective Deposition of Metals on Seeded Semiconductor Nanorods. Angew. Chem. Int. Ed. 2010, 49, 2888–2892. 
  20. Wu, Y.; Chakrabortty, S.; Gropeanu, R. a; Wilhelmi, J.; Xu, Y.; Er, K. S.; Kuan, S. L.; Koynov, K.; Chan, Y.; Weil, T. pH-Responsive Quantum Dots via an Albumin-Polymer Surface Coating.  J. Am. Chem. Soc. 2010, 14, 5012–5014.
  1. “A process for the preparation of super-hydrophobic surface”  by Thanseeha Sherin, Shamili Bandaru, M. Rao M., Sabyasachi Chakrabortty, Siddhartha Ghosh (INDIAN patent; Application No.: 202341064252).
  2. “System and method for synthesis and integration with different electrodes for hydrogen production” by Goutam Kumar Dalapati, Amit Kumar Chakraborty, Avishek Kumar, Sabyasachi Chakrabortty, Ambati Mounika Sai Krishna (Singapore Patent; Application No.: 10202401650X
  3. “Electrode Material” – A ternary transition metal oxide electrode material for efficient H2 generation – by Sabyasachi Chakrabortty, Uday Kumar Ghorui, Gokul Sivaguru (INDIAN patent; Application No.: 202441075507)
  4.  “A Process for the Synthesis of Doped Graphene Quantum Dots for H2O2 Sensing” – by Sabyasachi Chakrabortty, Ummadisetti Bhanu Teja, Uday Kumar Ghorui, Shamili Bandaru (INDIAN patent; Application No.: 202541010723)
  5. “Engineering Fe/Ni Oxide(s) Based Core/Shell nanostructures for Efficient Oxygen Evolution Reaction” – by Shagufta gull, Uday Kumar Ghorui, Nilja George, Siddhartha Ghosh, Sabyasachi Chakrabortty (INDIAN patent; Application No.: 202541044395)
  6. “Processing of A Band Tunable Copper Based Metal Oxide Alloy with High Index Facet for Production of Hydrogen by Electro Catalytic Water Splitting” – Goutam Kumar Dalapati, Amit Kumar Chakraborty, Avishek Kumar, Sabyasachi Chakrabortty, Ambati Mounika Sai Krishna (INDIAN patent; Application No.: 202534049045)
  7. “A Metal Ion Functionalized Hybrid MOF for Hydrogen Evolution Reaction and A Process for the Preparation Thereof” – by Sabyasachi Chakrabortty, Goutam Kumar Dalapati, Gokul Sivaguru, Uday Kumar Ghorui (INDIAN patent; Application No.: 202531061211)
  1. PI (Principal Investigator) of the project titled “Development of Cu-Nanoclusters – Carbon dots Nano-hybrid for Multimodal Catalytic Activity” from 2023-2026 funded by ANRF-SURE, India.
  2. Co-PI (Co-Principal Investigator) of the project titled “Centre for Advanced Materials and Catalysis” from 2022-2027 funded by DST-FIST, India.
  3. PI (Principal Investigator) of the project titled “Synthesis of High Indexed Faceted, Near Infra-Red (NIR) Active Hybrid Nanomaterials for (Photo)Catalysis” from 2022-2025 funded by ANRF-SURE, India.
  4. PI (Principal Investigator) for the “ITS (International Travel Support)” for 2024 funded by ANRF, India (not availed).
  5. PI (Principal Investigator) of the project titled “Kinetically Controlled Synthesis of Active Nanomaterials for Energy Applications” from 2023-2025 funded by SRM University – AP, India.