Condensed Matter Physics, Materials Science, Surfaces, Coatings and Films, Multidisciplinary
99
Scopus Publications
2008
Scholar Citations
28
Scholar h-index
52
Scholar i10-index
Scopus Publications
Effect of Γ–X Band Crossover on Resonant Tunneling Properties in GaAs/Ga0.7Al0.3As with Dresselhaus Spin-Orbit Interaction A. Meharajbegum, V. J. Priyadharshini, D. Gopinath, S. Rafi Ahamed, L. Bruno Chandrasekar, P. Shunmuga Sundaram, Sonaimuthu Mohandoss, M. Karunakaran, D. Shanmugapriya, J. Thirumalai Physics of the Solid State, 2026 Abstract Our theoretical study focused on the spin-dependent electron transport characteristics in GaAs/Ga0.7Al0.3As resonant tunnel barriers. This system exhibits spin-splitting, which is a consequence of the Dresselhaus spin-orbit interaction. Calculation of the transmission coefficient and spin-polarization efficiency relies on the matrix method. The pressure influences the barrier transparency and degree of polarization. The maximum of 72% spin-polarization is achieved in this work at critical pressure. The role of the Γ–X band crossover is accounted for in this theory. The spin-polarization increases without the Γ–X band crossover and the same decreases with the Γ–X band crossover. At the critical pressure, the degree of spin polarization is high. Analysis of the electron dwell time reveals that spin-down electrons spend more time in the system than spin-up electrons. We also found that the dwell time reaches its maximum when the heterostructure is subjected to the critical pressure.
Investigation of Structural, Antibacterial, Antioxidant, and Anticancer Properties of Carbon Quantum Dot Supported Co-doped ZnO Nanoparticles A. Janaki, L. Bruno Chandrasekar, M. Karunakaran, T. Sathis Kumar, M. Anusha, M. Divya Gnaneswari, E. Lavanya, P. Shunmuga Sundaram, Sonaimuthu Mohandoss, J. Thirumalai Bulletin of the Lebedev Physics Institute, 2026 Abstract The Co-doped ZnO and Co-doped ZnO/CQDs nanoparticles are prepared by the chemical method. The incorporation of CQDs reduces the crystallite size, whereas the bond length remains the same. The chemical composition and elemental mapping are reported. The bandgap of Co-doped ZnO is reduced by the addition of CQDs. The Carbon quantum dots-supported Co-doped ZnO nanoparticles exhibited antibacterial activity against B. subtilis, E. coli, and K. pneumoniae. Both samples exhibited an increase in antioxidant activity with the increase in concentration and the IC50 value was found to be 56.57 and 67.3 μg/mL for Co-doped ZnO/CQDs and Co-doped ZnO nanoparticles, respectively. The concentration-dependent decrease in cell viability with the visible morphological deterioration indicating cell death was observed in lung adenocarcinoma cells when treated with Co-doped and Co-doped ZnO/CQD with the IC50 value of 58.833 and 55.046 µg/mL, respectively.
Electrochemical and dielectric properties of cobalt doped SnS on cotton based electrodes for potential use in supercapacitors Mohd Arif Dar, Safwat A. Mahmoud, S. R. Majid, M. Satgunam, L. Guganathan, P. Arularasan, M. Karunakaran, S. Sheik Fareed, Hilal Ahmad Rather, Lamiaa Galal Amin Scientific Reports, 2025 Herein, we synthesize Co-doped SnS nanoparticles (NPs) using a simple solvothermal method. The X-ray diffraction (XRD) spectra determine the orthorhombic structure of the Co-doped SnS NPs. The Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirm the rod-like structure of the Co-doped SnS NPs. The surface area of 31, 225, 256 and 383 (m 2 /g) of Co-doped SnS NPs determines their tendency for electrical and supercapacitive properties. The deconvolution curves show the binding energy peaks of Sn, S and Co, confirming the doping of Co ions in the lattice of SnS compound. The 20%Co:SnS electrode retains 94% of its capacitance with a coulombic efficiency of 78% even after 3000 cycles of GCD curves. The SnS XRD peaks observed even after the cyclic stability test of 20%Co:SnS electrode determine the stability of the electrodes. The conductivity values of the AN1, AN2, AN3 and AN4 cotton electrodes are 9.6 × 10 −08 , 3.5 × 10 −07 , 5.8 × 10 −07 and 1.2 × 10 −06 , providing their tendency for future material in dielectric and microelectronic device applications.
Effect of Pr Doping Concentration on Optical, Antibacterial and Photocatalytic Properties of ZnO Nanoparticles A. Jasmine, P. Baskaran, L. Bruno Chandrasekar, M. Karunakaran, Anne Lino Jenina A, K. Sathesh Kumar, P. Krishnaveni, T. Balakrishnan, J. Thirumalai, P. Shunmuga Sundaram, Sonaimuthu Mohandoss Semiconductors, 2025 Abstract The current endeavor chronicles the synthesis of praseodymium-doped zinc oxide nanoparticles via the chemical precipitation method. SEM analysis examines the doping concentration role on the morphology of the nanoparticles. UV-Vis measurements indicate the optical band gap of the material ranges from 3.22 to 3.12 eV. The hole concentration and electron concentration are examined as a function of doping concentration. Diverse models are employed to ascertain the refractive index of the prepared nanoparticles. We also report the antibacterial activity of the nanoparticles against Gram-positive and Gram-negative bacteria, which cause septicemia. The prepared photocatalyst has excellent photocatalytic activity against methylene blue dye. The maximum degradation of 76% is observed and reported in this work when the doping concentration of Pr is 5%.
Study of the Photocatalytic Degradation and the Enhanced Antibacterial Activity Against Septicemia of Sm-Doped ZnO Nanoparticles A. Jasmine, P. Baskaran, M. Karunakaran, L. Bruno Chandrasekar, J. Thirumalai, T. Balakrishnan, P. Shunmuga Sundaram, J. Merciline Leonora, Sonaimuthu Mohandoss, Subramanian Palanisamy Bulletin of the Lebedev Physics Institute, 2025 Abstract The present work reported the preparation of Sm-doped zinc oxide (ZnO:Sm) nanoparticles using a chemical precipitation method. Particle size, morphology, luminescence and optical properties are studied. The role of doping concentration on the antibacterial and photocatalytic properties is explored. The atomic doping concentration of Sm is chosen as 0, 1, 3, and 5%. The uniformity and grain sizes of the prepared nanoparticles are effectively controlled by doping. Violet, blue and greenish yellow emissions are observed in the photoluminescence spectrum. The band gap of the material ranges from 3.322 to 3.143 eV as the doping concentration of Sm changes from 0 to 5%. The electron and hole concentrations are examined. The prepared nanoparticles have a high refractive index and are examined using various models. Antibacterial studies against the bacteria that cause the disease septicemia have been reported. The enhanced photocatalytic performance is observed. A maximum of 94% of the degradation of methylene blue is obtained using ZnO:Sm (5%) nanoparticles.
Enhanced Antibacterial and Anticancer Activities of Vanadium-Doped ZnO Nanoparticles: Effect of Doping Concentration M. Divya Gnaneswari, C. Raghavan, L. Bruno Chandrasekar, M. Karunakaran, L. Saravanan, S. Vimal, Saravanan Rajendran, Sonaimuthu Mohandoss, Subramanian Palanisamy, J. Thirumalai, P. Shunmuga Sundaram Bulletin of the Lebedev Physics Institute, 2025 Abstract Vanadium-doped zinc oxide nanoparticles are synthesized by the hydrothermal method with different doping concentrations. The main objective of the research is to analyze the role of doping concentration against septicemia and human colon cancer. The prepared nanoparticles are extensively characterized by the X-ray diffraction technique. The crystallite size, stain, lattice constants, and bond lengths are examined. The vanadium doping enhances the antibacterial activity against bacterial strains. The in vitro anticancer activity of the prepared nanoparticles is tested by MTT assay, EtBr and DAPI staining. The concentration-dependent enhancement in the antitumor activity is observed in human colon cancer cells by inducing apoptosis. The change in cell morphology and the induction of apoptosis is also observed in our study. This interesting finding will undoubtedly make substantial contributions to developing successful therapeutic agents for septicemia and colon cancer.
Effect of Γ–X Band Crossover on Resonant Tunneling Properties in GaAs/Ga 0.7 Al 0.3 As with Dresselhaus Spin-Orbit Interaction A Meharajbegum, VJ Priyadharshini, D Gopinath, SR Ahamed, ... Physics of the Solid State 68 (2), 147-153 , 2026 2026
Investigation of Structural, Antibacterial, Antioxidant, and Anticancer Properties of Carbon Quantum Dot Supported Co-doped ZnO Nanoparticles A Janaki, LB Chandrasekar, M Karunakaran, TS Kumar, M Anusha, ... Bulletin of the Lebedev Physics Institute 53 (1), 35-48 , 2026 2026
Influence of carbon quantum dots on enhanced capacitive behavior of Cu-doped zinc oxide nanoparticles as electrode in ultracapacitor LB Chandrasekar, V Sumathi, D Ramya, AJ Husain, SA Yuvaraj, ... Applied Physics A 131 (12), 1034 , 2025 2025
Effect of vanadium doping on optical and photocatalytic activity of ZnO nanoparticles LB Chandrasekar, J Jayarubi, D Gopinath, M Karunakaran, J Thirumalai, ... Chemistry of Inorganic Materials, 100132 , 2025 2025
Photocatalytic and Electrochemical properties of green synthesized Mn-doped ZnO/rGO nanoparticles R Radha, S Nilavazhagan, D Anbuselvan, LB Chandrasekar, ... Ceramics International , 2025 2025 Citations: 1
Electrochemical and dielectric properties of cobalt doped SnS on cotton based electrodes for potential use in supercapacitors MA Dar, SA Mahmoud, SR Majid, M Satgunam, L Guganathan, ... Scientific Reports 15 (1), 38176 , 2025 2025 Citations: 4
Effect of Pr Doping Concentration on Optical, Antibacterial and Photocatalytic Properties of ZnO Nanoparticles A Jasmine, P Baskaran, LB Chandrasekar, M Karunakaran, ALJ A, ... Semiconductors 59 (9), 888-899 , 2025 2025 Citations: 1
A natural polymer-functionalized MXene/ZIF-67 nanocomposite as a synergistic platform for enhanced in vitro cell migration and antibacterial performance K Kasirajan, M Karunakaran, S Usha, N Ganeshwari, VR Preethi, HK Choi International Journal of Biological Macromolecules, 146946 , 2025 2025 Citations: 4
Enhanced Antibacterial and Anticancer Activities of Vanadium-Doped ZnO Nanoparticles: Effect of Doping Concentration MD Gnaneswari, C Raghavan, LB Chandrasekar, M Karunakaran, ... Bulletin of the Lebedev Physics Institute 52 (8), 395-408 , 2025 2025
Study of the Photocatalytic Degradation and the Enhanced Antibacterial Activity Against Septicemia of Sm-Doped ZnO Nanoparticles A Jasmine, P Baskaran, M Karunakaran, LB Chandrasekar, J Thirumalai, ... Bulletin of the Lebedev Physics Institute 52 (8), 383-394 , 2025 2025 Citations: 1
Praseodymium-doped zinc oxide nanoparticles: preparation and its manifold applications LB Chandrasekar, M Karunakaran, MD Gnaneswari, S Jegatheeswaran, ... The European Physical Journal B 98 (8), 162 , 2025 2025 Citations: 2
Synergistic effect of WO3/BiVO4 nanocomposites for energy storage applications S Prabakaran, M Karunakaran, S Usha, N Ganeshwari, P Krishnaveni, ... Ceramics International , 2025 2025 Citations: 3
Antibacterial and photocatalytic activity of Tb-doped ZnO nanoparticles: effect of doping concentration A Jasmine, P Baskaran, LB Chandrasekar, M Karunakaran, P Krishnaveni, ... The European Physical Journal B 98 (5), 98 , 2025 2025 Citations: 4
Transport Properties in ZnO/ZnCdO Heterostructure with Spin–Orbit Interaction: Effect of In-Plane Magnetic Field & Delta Potential M Karunakaran, AN Alodhayb, KE Alzahrani, V Pazhanivelu, ... International Journal of Theoretical Physics 64 (4), 107 , 2025 2025 Citations: 1
Study of Tunneling Properties in ZnO/ZnCdO Trilayer Heterostructure for Spintronic Devices: Effect of the In-Plane Wave Vector LB Chandrasekar, S Dinagaran, S Pandiaraj, KA Alibrahim, AN Alodhayb, ... Brazilian Journal of Physics 55 (2), 87 , 2025 2025
Surface oxidation of grown REMs-doped CuO: CdTe thin films heterostructure based photocatalyst and PECs materials for solar-driven water splitting G Kavitha, M Karunakaran Electrochimica Acta 518, 145622 , 2025 2025
Theoretical Study of Resonant Tunneling in ZnO/ZnCdO Triangular Double-Barrier Heterostructure E Lavanya, LB Chandrasekar, M Karunakaran, A Dinesh, ... Semiconductors 59 (3), 211-216 , 2025 2025 Citations: 2
Spin-dependent resonant tunneling in CdTe/Cd 1− x Mn x Te nanostructures: effect of polaronic mass LB Chandrasekar, A Dinesh, L Gnanasekaran, M Santhamoorthy, ... The European Physical Journal B 98 (3), 40 , 2025 2025
Effect of Γ–X band crossover on resonant tunneling properties of electrons in double-barrier triangular heterostructures LB Chandrasekar, L Gnanasekaran, M Santhamoorthy, E Priyadharshini, ... Results in Surfaces and Interfaces 18, 100410 , 2025 2025 Citations: 2
Electrochemical investigations of Mn-doped ZnO/rGO nanoparticles electrode material for supercapacitor application and its enhanced antimicrobial activity D Anbuselvan, G Anitha, S Nilavazhagan, LB Chandrasekar, ... The European Physical Journal Plus 139 (12), 1054 , 2024 2024 Citations: 9
MOST CITED SCHOLAR PUBLICATIONS
Green synthesis of multicolour fluorescence carbon quantum dots from sugarcane waste: Investigation of mercury (II) ion sensing, and bio-imaging applications K Kasinathan, S Samayanan, K Marimuthu, JH Yim Applied Surface Science 601, 154266 , 2022 2022 Citations: 161
A comparative study of different rare-earth (Gd, Nd, and Sm) metals doped ZnO thin films and its room temperature ammonia gas sensor activity: Synthesis, characterization, and … K Kasirajan, LB Chandrasekar, S Maheswari, M Karunakaran, ... Optical Materials 121, 111554 , 2021 2021 Citations: 89
Fabrication of heteroatom doped NFP-MWCNT and NFB-MWCNT nanocomposite from imidazolium ionic liquid functionalized MWCNT for antibiofilm and wound healing in Wistar rats … B Murugesan, N Pandiyan, K Kasinathan, A Rajaiah, M Arumuga, ... Materials Science and Engineering: C 111, 110791 , 2020 2020 Citations: 88
Synthesis of biogenic chitosan-functionalized 2D layered MoS2 hybrid nanocomposite and its performance in pharmaceutical applications: In-vitro antibacterial and anticancer … K Kasinathan, B Murugesan, N Pandian, S Mahalingam, B Selvaraj, ... International journal of biological macromolecules 149, 1019-1033 , 2020 2020 Citations: 79
Enhanced room temperature ammonia gas sensing properties of strontium doped ZnO thin films by cost-effective SILAR method KR Devi, G Selvan, M Karunakaran, ILP Raj, V Ganesh, S AlFaify Materials Science in Semiconductor Processing 119, 105117 , 2020 2020 Citations: 69
Recent advances in performance and effect of Zr doping with ZnO thin film sensor in ammonia vapour sensing JAS Ibrahim, S Rajasekar, Varsha, M Karunakaran, K Kasirajan, ... GLOBAL NEST JOURNAL 23 (4), 526-531 , 2021 2021 Citations: 52
Synergistically self-assembled 2D nanosheets of MXene@ MOF derived CoW-LDH into 3D frameworks functionalized with chitosan for improved skin wound healing K Kasinathan, YK Park, B Ravindran, K Marimuthu, ... Chemical Engineering Journal 482, 149088 , 2024 2024 Citations: 49
Synthesis and characterization of cadmium doped on ZnO thin films prepared by SILAR method for photocatalytic degradation properties of MB under UV irradiation M Sathya, G Selvan, M Karunakaran, K Kasirajan, S Usha, M Logitha, ... The European Physical Journal Plus 138 (1), 67 , 2023 2023 Citations: 49
Cyclodextrin functionalized multi-layered MoS2 nanosheets and its biocidal activity against pathogenic bacteria and MCF-7 breast cancer cells: Synthesis, characterization and … K Kasinathan, K Marimuthu, B Murugesan, N Pandiyan, B Pandi, ... Journal of Molecular Liquids 323, 114631 , 2021 2021 Citations: 49
SILAR-coated Mg-doped ZnO thin films for ammonia vapor sensing applications KR Devi, G Selvan, M Karunakaran, K Kasirajan, LB Chandrasekar, ... Journal of Materials Science: Materials in Electronics 31 (13), 10186-10195 , 2020 2020 Citations: 45
Enhancing the properties of CdO thin films by co-doping with Mn and Fe for photodetector applications BR Kumar, KH Prasad, K Kasirajan, M Karunakaran, V Ganesh, Y Bitla, ... Sensors and Actuators A: Physical 319, 112544 , 2021 2021 Citations: 44
An effect of Gd3+ doping on core properties of ZnS thin films prepared by nebulizer spray pyrolysis (NSP) method AJ Jebathew, M Karunakaran, KDA Kumar, S Valanarasu, V Ganesh, ... Physica B: Condensed Matter 574, 411674 , 2019 2019 Citations: 44
Yttrium-Substituted SnO2 thin films and its gas sensing activity against NH3 gas: Characterization and sensitivity evaluation S Maheswari, M Karunakaran, K Kasirajan, LB Chandrasekar, P Boomi Sensors and Actuators A: Physical 315, 112303 , 2020 2020 Citations: 42
High sensitive samarium-doped ZnS thin films for photo-detector applications AJ Jebathew, M Karunakaran, M Shkir, H Algarni, S AlFaify, A Khan, ... Optical Materials 122, 111649 , 2021 2021 Citations: 38
Spintronics–A mini review LB Chandrasekar, K Gnanasekar, M Karunakaran Superlattices and Microstructures 136, 106322 , 2019 2019 Citations: 38
Microstructural, optical and electrical properties of various time annealed spin coated MgO thin films S Valanarasu, V Dhanasekaran, M Karunakaran, TA Vijayan, ... Journal of Materials Science: Materials in Electronics 25 (9), 3846-3853 , 2014 2014 Citations: 38
Fabrication of eco-friendly chitosan functionalized few-layered WS2 nanocomposite implanted with ruthenium nanoparticles for in vitro antibacterial and anticancer activity … K Kasinathan, K Marimuthu, B Murugesan, M Sathaiah, P Subramanian, ... International Journal of Biological Macromolecules 190, 520-532 , 2021 2021 Citations: 37
Facile synthesis of highly biologically active chitosan functionalized 2D WS2 nanocomposite anchored with palladium nanoparticles for antibacterial and anticancer activity: In … K Kasinathan, K Marimuthu, B Murugesan, S Samayanan, Y Cai, ... Journal of Molecular Liquids 335, 116582 , 2021 2021 Citations: 36
Optical manipulation of nebulizer spray pyrolysed ZnS thin films for photodetector applications: Effect of Al, Sn and Sb doping AJ Jebathew, M Karunakaran, R Ade, ND Jayram, V Ganesh, Y Bitla, ... Optical Materials 117, 111177 , 2021 2021 Citations: 36
Synthesis of biocompatible chitosan functionalized Ag decorated biocomposite for effective antibacterial and anticancer activity K Kasinathan, K Marimuthu, B Murugesan, S Samayanan, SJ Panchu, ... International journal of biological macromolecules 178, 270-282 , 2021 2021 Citations: 36