Research Publications

Publications in Refereed Journal: [Total Impact Factor: 44.97; Average Impact Factor: 3.21]


  1. “Crystallization of PECVD grown Si nanowire and its characterization using confocal Raman and EELS studies” N. Ahmed, P. Ramasamy, P. B. Bhargav, A. K. Sivadasan, S. Amirthapandian, S. Dhara, and C. Balaji, J Mater Sci: Mater Electron 2021, 32, 204-209


  1. “Role of polarized tip-enhanced Raman spectroscopy in the enhancement of interface optical phonon modes in AlGaN multi-quantum wells”, A. K. Sivadasan, P. Dhara, R. Basu, S. Parida, C. Singha, A. Bhattacharyya, and K. K. Madapu, S. Dhara, J. Mat. NanoSci. 2020, 7(1), 19‐23


  1. “Observation of surface plasmon polaritons in 2D electron gas of surface electron accumulation in InN nanostructures”, K. K. Madapu, A. K. Sivadasan, M. Baral, T. Ganguly, S. Dhara, Nanotechnology, 2018 29 (27), 275707 (IF=3.44)


  1. “Effect of Scattering Efficiency in the Tip–Enhanced Raman Spectroscopic Imaging of Nanostructures in the Sub–Diffraction Limit”A. K. Sivadasan, A. Patsha, A. Maity, T. K. Chini and S. Dhara, J. Phys. Chem. C, 2018, 121 (48), 26967-26975 (IF=4.48)


  1. “Spectroscopically forbidden infra–red emission in Au–vertical graphene hybrid nanostructures”, A. K. Sivadasan, S. Parida, S. Ghosh, R. Pandian and S. Dhara, Nanotechnology, 2017, 28(46) 465703 (IF=3.44)


  1. “Surface optical phonon modes in hexagonal shaped 1D Al0.97Ga0.03N nanorods”, A. K. Sivadasan, C. Singha, K. G. Raghavendra, S. Amirthapandian, A. Bhattacharyya, A. Dasgupta, and S. Dhara, Appl. Phys. A., 2017, 123,527 (1–8) (IF=1.6)


  1. “Optical properties of AlGaN nanowires synthesized via ion beam techniques”, S. Parida, P. Magudapathy, A. K. Sivadasan, R. Pandian, and S. Dhara, J. Appl. Phys. 2017, 121(20), 205901 (IF=2.101)


  1. “Optical Imaging of Metallic and Semiconductor Nanostructures at Sub–Wavelength Regime” A. K. Sivadasan, K. K. Madapu, and P. Dhara, Physics Education, 2017, 33(1), Article No: 8, 1–8


  1. “Far field photoluminescence imaging of single AlGaN nanowire in the sub–wavelength scale using confinement of polarized light”, A. K. Sivadasan, M. Sardar and S. Dhara, Ann. Phys. (Berlin), 2016, 529 (3), 1600165 (IF=3.443)


  1. “Interface phonon modes in the [AlN/GaN]20 and [Al0.35Ga0.65N/Al0.55Ga0.45N]20 2D multi–quantum well structures”, A. K. Sivadasan, C. Singha, A. Bhattacharyya and S. Dhara, Phys. Chem. Chem. Phys., 2016, 18, 29864–29870 (IF=4.449)


  1. “The light–matter interaction of single semiconducting AlGaN nanowire and noble metal Au nanoparticle in the sub–diffraction limit”, A. K. Sivadasan, K. K. Madapu, and S. Dhara, Phys. Chem. Chem. Phys., 2016, 18, 23680–23685 (IF=4.449)


  1. “Piezoelectric domains in the AlGaN hexagonal microrods: Effect of crystal orientations” A. K. Sivadasan, G. Mangamma, S. Bera, M. Kamruddin and S. Dhara, J. Appl. Phys., 2016, 119, 174304–9 (IF=2.101)


  1. “Polarized Raman and photoluminescence studies of a sub–micron sized hexagonal AlGaN crystallite for structural and optical properties”, A. K. Sivadasan and S. Dhara, J. Raman.Spectrosc., 2016, 47, 656–611 (IF=2.395)


  1. “Effect of annealing on the structural properties of vertical graphene nanosheets”, S. Ghosh, K. Ganesan, S. R. Polaki, A. K. Sivadasan, M.Kamruddin, and A. K. Tyagi, Adv. Sc. Eng. Med. 2016, 8,146–14


  1. “Optically confined polarized resonance Raman studies in identifying crystalline orientation of sub– diffraction limited AlGaN nanostructure”, A. K. Sivadasan, A. Patsha and S. Dhara, Appl. Phys. Lett., 2015, 106, 173107–4 (IF=3.142)


  1. “Optical properties of mono–dispersed AlGaN nanowires in the single–prong growth mechanism”, A. K. Sivadasan, A. Patsha, S. Polaki, S. Amirthapandian, S. Dhara, A. Bhattacharya, B. K. Panigrahi, and A. K. Tyagi, Cryst. Growth Des., 2015, 15, 1311–1318 (IF=4.51)


  1. “Invoking forbidden modes in SnO2 nanoparticles using tip enhanced Raman spectroscopy” , V. Bonu, A. Das, A. K. Sivadasan, A. K. Tyagi and S. Dhara, J. Raman Spectrosc. 2015, 46, 1037–1040 (IF=2.395)


  1. “Microwave assisted hydrolysis of aluminium metal and preparation of high surface area γ-Al2O3 powder.”, A.K. Sivadasan, I. P. Selvam, and S. N. Potty, Bull. Mater. Sci., 2010, 33(6), 737–740 (IF=0.925)