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Biography

Dr. Karthick Raja K holds a PhD in Physics from the Indian Institute of Information Technology, Design and Manufacturing (IIITDM), Kancheepuram (2025). His research expertise lies in energy conversion and storage, with a focus on supercapacitors, electrocatalysts, and solid-state hydrogen storage, as well as extensive experience in density functional theory (DFT). He has synthesized and characterized advanced carbon-based nanomaterials for applications in asymmetric hybrid supercapacitors and solid-state hydrogen storage. He is proficient in various experimental techniques and computational methods, including Quantum Espresso, CASTEP, and VASP for DFT calculations. His academic and research efforts are geared towards the fundamental understanding and development of next-generation energy storage devices and electrocatalysts.

Research Areas of Interest

  1. Energy Storage and Conversion
  2. Density Functional Theory

Highest Qualification

Ph.D. in Physics

List of Publications

  1. Karthick Raja K, Mani Govindasamy, Vivek Kumar*, Time-resolved electrochemical kinetics and pseudocapacitive charge storage in Fe-MOF@CoSn based asymmetric hybrid supercapacitors, Langmuir, 41, 39, 26575–26588 (2025).
  2. Karthick Raja K, Brahmananda Chakraborty, Pin-Yi Chen, Mani Govindasamy*, Vivek Kumar*, DFT Investigation of atom-implanted 2D gC3N4 for high-performance supercapacitor electrodes: quantum capacitance and surface charge density analysis, Electrochimica Acta, 524, 146047 (2025).
  3. Karthick Raja K, Aiswarya Raj, Ting-Yu Liu, and Vivek Kumar*, MIL-100(Fe) grown on CoSn(OH)6 as a bifunctional catalyst for electrocatalytic overall water splitting, Journal of Alloys and Compounds Communication, 8, 100128, (2025).
  4. Karthick Raja K, Umamaheswari Rajaji, Ting-Yu Liu*, Vivek Kumar*, Charge injection dynamics in oxygen-functionalized and heteroatom-doped reduced graphene oxide and their impact on supercapacitor performance: An experimental and DFT investigation, Journal of Electroanalytical Chemistry, 977, 118848, (2025).
  5. Karthick Raja K, Vivek Kumar*, Understanding the role of transition metal implantation on 2D graphitic carbon nitride for solid-state hydrogen storage: A first principles study, International Journal of Hydrogen Energy, 267, 760-768, (2024).
  6. Karthick Raja K, Vivek Kumar*, Catalytic CoSn perovskites for high-performance asymmetric hybrid supercapacitor and efficient oxygen evolution reaction: Experimental investigation and DFT validation, Journal of Physical Chemistry C, 128, 16, 6600–6611 (2024).
  7. Karthick Raja K, T Anusuya, Vivek Kumar*, Contribution of electron localization and delocalization zones in the performance of electrochemically reduced graphene oxide-based supercapacitors: An experimental and the first-principles study, Carbon, 215, 118481 (2023).
  8. Karthick Raja K, T Anusuya, Vivek Kumar*, DFT study of hydrogen interaction with transition metal doped graphene for efficient hydrogen storage: effect of d-orbital occupancy and Kubas interaction, Physical Chemistry Chemical Physics, 25, 262 (2023).
  9. Aiswarya Raj, Karthick Raja K, Kapil Saxena, Bipin Joshi, Vivek Kumar*, Orbital Interaction-Mediated Enhancement of Quantum Capacitance in Transition Metal-Doped Functional Group-Terminated Ti3C2 MXenes for Broad-Window Supercapacitor Electrodes: A First-Principles Study, ACS Applied Engineering Materials, 3, 11, 3789–3803 (2025).
  10. S. Pandimadevi Lishavi, M. Thameem Ansari, Karthick Raja K, Vivek Kumar, V. Chinnathambi, Electrochemical evaluation of redox active cobalt-oxyquinolinate complex layered on reduced graphene oxide for hybrid supercapacitor application, Applied Organometallic Chemistry, 586, e7926 (2024).
  11. S. Pandimadevi Lishavi, M. Thameem Ansari, Karthick Raja K, Vivek Kumar, Electrochemical evaluation of low crystalline CoFe2O4@reduced graphene oxide nanocomposite for hybrid supercapacitor application, Chemical Physics, 586, 112372 (2024).
     

Conference Proceedings

  1. Vivek Kumar*, Karthick Raja K, T Anusuya, Porous graphene oxide network as high-performance supercapacitor electrodes: effect of reduction temperature, IEEE 13th International Conference on Nanomaterials: Applications and Properties (NAP),(2023).