2023
157)Role of Pauli blocking for enhancement of saturable absorption in MoS2/PEDOT:PSS nanocomposite films
Arjun K, Balasubramanian, Karthikeyan
Journal of Applied Physics. (Accepted-2023)
156) Many-body interaction governed ultrafast relaxation dynamics of hot holes in CuS nanoflakes and photocatalytic efficiency
enhanced CuS/Ag2S nanocomposites
Mukherjee, Soumya ; N M, Anjankumar; Ramesh, Saranya; Karthikeyan, Balasubramanian; Kamaraju, Natarajan
ACS Applied Optical Materials (Accepted-2023)
155) MoS2/PEDOT:PSS nanocomposite films for deep UV sensing: Role of the radiation-induced trapping and localization of charges
Arjun K, Balasubramanian, Karthikeyan
Applied Physics A (Accepted-2023)
154) Cr Doping Induced Fano Resonance of ZnO layered nanoporous structures and UV Photodetector Application
Chinnasamy, Madhumitha; Paul, Swati; Balagopalan, Susmitha; Karthikeyan, Balasubramanian
ACS Applied Optical Materials (Accepted-2023)
153) Investigation of conductivity and shielding efficiency of the free-standing PVA-GO-Ag composite thin films in terahertz regime using time domain terahertz spectroscopy
Soumya Mukherjee; Anjan NM; B Karthikeyan; N. Kamaraju
Applied Physics A (Accepted-2023)
152) Raman spectral studies on phonon softening, surface temperature, Fano resonance, and phase change in MoS2 nanoflakes.
Susmitha Balagopalan, Arjun K, Karthikeyan Balasubramanian
Applied Physics A (Accepted-2023)
151)Polyaniline and Copper based nanometal surface energy transfer probe for efficient turn-on bovine serum albumin sensing
Janani Archana K, Karthikeyan Balasubramanian
Optical Materials (Accepted-2023)
150) Fabrication and spectroscopic investigation of sandwich-like ZnO:rGO:ZnO:rGO:ZnO structure by layer-by-layer approach
T. Pandiyarajan, R. Mangalaraja, B.alasubramanian Karthikeyan, A. Arulraj, M.A. Gracia-Pinilla,
Inorganic Chemistry Communications (Accepted-2022)
149)Investigation of self-trapped excitonic dynamics in hematite nano-forms through non-degenerate pump-probe transmission spectroscopy
Anjan N M, Soumya Mukherjee, Anoop Sunny, B. Karthikeyan, and N. Kamaraju.
Applied Physics Letters (Accepted-2022)
148) Tailoring exciton diffusion length in ZnO@MoS2 core-shell/polyaniline nanocomposite films and photocurrent generation applications"
Paul, Swati; Karthikeyan, Balasubramanian
ACS Applied Nano Materials (Accepted-2022)
147) Ultrasonication assisted exfoliation of MoSe2 nanosheets for optical and optical limiting applications
Venkadeshkumar Ramar, Pratik M Pataniya, Solanki Gunvant, Karthikeyan Balasubramanian
Journal of applied physics (Accepted-2022)
146)Investigation on Laser Induced Fano Resonance of Hydrothermally synthesized Ag doped ZnO hierarchical nanoporous structure and its UV Photodetector Properties"
C. Madhumidha, B.Karthikeyan
Optical Materials(Accepted-2022)
145)Phonon, magnon and magnetic properties of Cu doped NiO nanoparticles
Anoop Sunny,Karthikeyan Balasubramanian
Journal of Raman Spectroscopy (Accepted-2022)
144) Slow Excitonic Carrier Cooling in Sr-doped PbS Nanocrystals for Hot Carrier Devices: Integrated Experimental and First-principles Approach
Sivalingam Muthu Mariappan, Sung Jun Hong, Byungchan Han, Mohd. Shkir, Elangovan Vinoth, Stella Mary, Janani Archana,
Balasubramanian Karthikeyan, H. Algarni, and S. AlFaify
Journal of Materials Chemistry C (Accepted 2022) --- (Featured as cover page Article)
143) Influence of Urbach energy in enhanced photocatalytic activity of Cu doped ZnO nanoparticles
Janani Archana K, Christy preetha, Karthikeyan Balasubramanian
Optical Materials (Accepted 2022)
142) Probing nanometal surface energy transfer between nanocopper and MoS2 for glutathione sensing
Janani Archana K, Karthikeyan Balasubramanian
Journal of Physics D: Applied Physics (Accepted 2022)
141)Flexible Ultraviolet Photodetector based on flower-like ZnO/PEDOT:PSS nanocomposites
Arjun K, Balasubramanian, Karthikeyan
Applied Physics A (Accepted 2022)
140) "Multiple Exciton Dynamics in MoS2 Nanosheet/Poly(Methyl Methacrylate)/Polyaniline Composites and Nonlinear Optical Properties: Implications for Saturable Absorber Applications" Paul, Swati; Balasubramanian, Karthikeyan
ACS Applied Nano Materials (Accepted 2022)- (Featured as cover page Article)
139) Fractal and Multifractal analysis on Fused Silica Glass formed by Bound abrasive grain mediated grinding using diamond grits
Susmitha Balagopalan , I. Abdul Rasheed Hemant Sharma, Inder Mohan Chhabra, Mahender Kumar Gupta, P. Manimaran, B. Karthikeyan
Journal of Non-Crystalline Solids (Accepted 2022)
2021
138) Influence of RE ( Pr3+, Er3+, Nd3+ ) doping on microstructural, vibrational and enhanced persistent photocatalytic properties of ZnO nanostructures
T. Pandiyarajan, R. V. Mangalaraja, B. Karthikeyan, Udaybhaskar, David Contreras, Selene Sepulveda Guzman, M.A. Gracia-Pinilla
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy (Accepted 2021)
137) Copper Oxide Nanorod/Reduced Graphene Oxide Composites for NH3 Sensing
Sivalingam Muthu Mariappan; Olmos-Asar, Jimena; Vinoth, Elangovan; Tharmar, Thangeeswari ; Shkir, Mohd; Said, Zafar ; Balasubramanian, Karthikeyan
ACS Applied Nano Materials (Accepted 2021)
Arivalagan Shabashini, Venkadeshkumar Ramar, Balasubramanian, Karthikeyan, Manas K Panda, and Ganesh Chandra Nandi
ChemistrySelect, (doi.org/10.1002/slct.20210308 )
135) Enhanced linear and nonlinear optical response in CuS/Ag2S nanocomposites
Karthikeyan Balasubramanian, Swati Paul, J. Pradeepthi Krishma
Applied Physics A 127, 744 (2021)
134) Alumina Abrasive Grains mediated grinding induced Glass Surface and fractal analysis of SiO2 glass
I.Abdul Rasheed,Swati paul , Inder Mohan Chhabra, MahenderKumar Gupta, B. Karthikeyan
Engineering Research Express - (accepted 2021)
133) Surface Preparation and analysis on Fused Silica Glass substrate with deterministic grinding method
I.Abdul Rasheed, Venkadeshkumar Ramar , Inder Mohan Chhabra, MahenderKumar Gupta, B. Karthikeyan
Materials Today: Proceedings (doi: 10.1016/j.matpr.2021.03.221)- (accepted 2021)
132) Optical and Strong blue emission properties of Alumina Abrasive Grains mediated grinding induced SiO2 Glass Surfaces for Navigation Grade Sensors
I.Abdul Rasheed, Venkadeshkumar Ramar , Inder Mohan Chhabra, MahenderKumar Gupta, B. Karthikeyan
Optical Materials (accepted 2021)
131)Reduced Graphene Oxide/WO3 Nanorod Composites for Photocatalytic Degradation of Methylene Blue under Sunlight irradiation
Ramar, Venkadeshkumar; Balasubramanian, Karthikeyan
ACS applied nanomaterials (accepted 2021)
130)Impact of Reducing Agents on the Ammonia Sensing Performance of Silver Decorated Reduced Graphene Oxide: Experiment and First Principles Calculations
Sivalingam Muthu Mariappan, E. Mathan Kumar, Udo Schwingenschlögl,ThangeeswariTharmar, Elangovan Vinoth, Mohd.Shkir5, Zafar Said, Balasubramanian Karthikeyan
Applied Surface Science (Accepted -2021)
M.Manjula, B. Karthikeyan, D.Sastikumar
Applied Physics A(Accepted-2020)
121) Thermally Influenced, Optical and fluorescence properties of Zinc Oxide nanoparticles for Glutathione sensing
Jananni Archana K, B. Karthikeyan
Applied Physics A(Accepted-2020)
120) Unravelling the synergistic effect of reduced graphene oxide on optical, phonon and optical power limiting properties of rGO/α-MoO3 nanohybrids
Venkadeshkumar Ramar, Karthikeyan Balasubramanian
Applied Physics A (Accepted-2020)
119) Optical, Spectroscopic and Fiber Optic Gas Sensing of Potassium Doped
α -Fe2O3 Nanostructures
A.Kalaipriya, Anoop Sunny, B, Karthikeyan, D.Sastikumar
Optical Fiber Technology (Accepted-2020)
62) Single-step, size-controlled synthesis of colloidal silver nanoparticles stabilized by octadecylamine
Gururaj M. Neelgund, B. Karthikeyan, S.A. Shivashankar , Aderemi Oki
Applied Surface Science (accepted-2015)
61) Morphology controlled synthesis of Sm doped ZnO nanostructures for photodegradation studies of Acid Blue 113 under UV-A light
T. Pandiyarajan, R.V. Mangalaraja, B. Karthikeyan, P. Sathishkumar, H. D. Mansilla, D. Contreras,R. José, M.A. G. Pinilla
Journal of Materials Science: Materials in Electronics (accepted-2015)
60) Enhanced blue light emission in transparent ZnO:PVA nanocomposite free standing polymer films
B. Karthikeyan, T. Pandiyarajan, R.V. Mangalaraja
Spectrochimica Acta Part A: Mol. and Biomol. Spectroscopy (accepted-2015)
59) Colloidal synthesis and electrical behaviour of n-ZnGdO/p-Si heterojunction diodes
Siva Chidambaram, Ganga Gnanasekaran , G. Mohan Kumar, Baraneedharan Pari , Karthikeyan Balasubramanian, Sivakumar Muthusamy
Journal of Colloid and Interface Science 452, 169(2015)
58) UV-A light induced photodegradation of Acid Blue 113 in the presence of Sm doped ZnO nanostructures
T. Pandiyarajan, R. V. Mangalaraja, B. Karthikeyan
Applied Physics A (Accepted)-2015
57) Enhanced ultraviolet fluorescence in surface modified ZnO nanostructures: Effect of PANI
T. Pandiyarajan, R. V. Mangalaraja, B. Karthikeyan
Spectrochimica Acta Part A: (Accepted)-2015
56) Enhanced fluorescence and local vibrational mode in near-white light emitting ZnO:Mg nanorods system
R. Udayabhaskar, B. Karthikeyan
Journal American Ceramic Society (Accepted)-2015
55) Enhanced multi-phonon Raman scattering andnonlinear optical power limiting in ZnO:Au nanostructures
R. Udayabhaskar, B. Karthikeyan, P. Sreekanth and Reji Philip
RSC Advances (Accepted)-2015
54) Enhanced fluorescence, Raman scattering and higher order Raman modes in
ZnO:Ag nanorods
R.Udayabhaskar, R. V. Mangalaraja, B. Karthikeyan
Plasmonics (Accepted)-2015
53) Sol-gel prepared Cu2O microspheres: Linear and nonlinear optical properties
B. Karthikeyan, R.Udayabhaskar, Priya Rose T., T. Pandiyarajan, Reji Philip
RSC Advances (Accepted)-2014
52) Role of micro-strain and defects on band-gap, fluorescence in near white light emitting Sr doped ZnO nanorods
R. Udayabhaskar, B. Karthikeyan
Journal of Applied Physics (Accepted)-2014
51) Optical and phonon properties of Sm doped α-Bi2O3 microrods
Balasubramanian Karthikeyan, R. Udayabhaskar, Ashwin Kishore
Applied Physics A (Accepted-2014)
50)Spectroscopic and fiber optic ethanol sensing properties Gd doped ZnO nanoparticles
J. L. Noel, R. Udayabhaskar, B. Renganathan, S. Muthu Mariappan, D.Sastikumar,B. Karthikeyan
Spectrochimica Acta Part A (Accepted)-2014
49) Optical and phonon propeprties of ZnO:CuO mixed nanocomposite
R. Udayabhaskar, B. Karthikeyan
Journal of Applied Physics (Accepted)-2014 (DOI: 10.1063/1.4870447)
48) Optical and saturation behavior of thermally surface Plasmon tuned Cu nanorod composite glasses
R. Udayabhaskar, B. Karthikeyan, Muhamed Shafi Ollakkan
Plasmonics (DOI:10.1007/s11468-013-9663-2)
47) Enhanced fluorescence and optical power limiting in Ag- nanocomposite glasses
R. Udayabhaskar, B. Karthikeyan, Muhamed Shafi Ollakkan, R.V. Mangalaraja, M. L. Baesso
Chemical Physics Letters 593 (2014) 1-6
46) Preparation, optical and non-linear optical power limiting propertiesof Cu, CuNi nanowires
R. Udayabhaskar, Muhaned Shafi Ollkkan, B. Karthikeyan
Applied Physics Letters 104, 013107 (2014)
45)Optical, structural, enhanced local vibrational and fluorescence properties in K doped ZnO nanostructures
V. Bharathi, M. Sivakumar, R. Udayabhaskar, Hiromichi Takebe, B. Karthikeyan
Applied Physics A (10.1007/s00339-013-8139-8)
44) Enhanced ultraviolet-blue emission and Raman modes in ZnO:Cr2O3 composite nanoparticles
T. Pandiyarajan, M. L. Baesso, B. Karthikeyan
European Physical Journal D ((2014) 68: 28 )
43) Birth of room temperature Magnons and Raman line enhancement in ZnO nanostructures containing Cobalt oxide
T. Pandiyarajan, B. Karthikeyan
Journal of Raman Spectroscopy 44 (2013) 1534-1539
42) Thermal annealing induced structural and optical properties of Ca doped ZnO nanoparticles
R. Udayabhaskar, R.V. Mangalaraja, B. Karthikeyan
Journal of Materials Science: Materials in Electronics 24 (2013) 3183-3188
41) Synthesis and concentration dependent antibacterial activities of CuO nanoflakes
T. Pandiyarajan, R. Udayabhaskar, S. Vignesh, R. Arthur James, B. Karthikeyan
Materials Science and Engineering: C 33 (2013) 2020–2024
40) Optical properties of annealing induced post growth ZnO:ZnFe2O4 nanocomposites
T. Pandiyarajan, B. Karthikeyan
Spectrochimica Acta Part A 106 (2013) 247–252
39) Microstructure and enhanced exciton-phonon coupling in Fe doped ZnO nanoparticles
T. Pandiyarajan, R. Udayabhaskar, B. Karthikeyan
Spectrochimica Acta Part A 103 (2013) 173–178
38)Room temperature synthesis and optical studies on Ag and Au mixed nanocomposite Polyvinylpyrrolidone polymer films
R. Udayabhaskar, R.V Mangalaraja, D. Manikandan, V. Arjunan, B. Karthikeyan
Spectrochimica Acta Part A 99 (2012) 69–73
37)Vibrational, giant dielectric and ac conductivity properties of agglomerated CuO nanostructures
Deepthi K R, T. Pandiyarajan Thangaraj, B. Karthikeyan
Journal of Materials Science: Materials in Electronics 24 (2013) 1045-1051
36)Structural, thermal and optical properties of PVP capped ZnO films
T. Pandiyarajan, B. Karthikeyan
Advanced Materials Research 678 (2013) 253-257
35) Synthesis and antifungal studies on CuO nanostructures
M. Hussain Beevi, S. Vignesh, T. Pandiyarajan, P. Jegatheesan, R. Arthur James, N. V. Giridharan and B. Karthikeyan
Advanced Materials Research 488-489, 666(2012)
34) Optical studies on thermally surfaceplasmon tuned Au, Ag and Au:Ag alloy nanocomposite polymer films
B. Karthikeyan
Spectrochimica Acta Part A 96 (2012) 456-60
33) Role of Fe doping on structural and vibrational properties of ZnO nanostructures.
T. Pandiyarajan, R. Udayabhaskar, B. Karthikeyan
Applied Physics A 107 (2012) 411-419
32) Cr doping induced structural, phonon and excitonic properties of ZnO nanoparticles
T. Pandiyarajan, B. Karthikeyan
Journal of Nanoparticle Research 14 (2012) 647
31) Antifungal studies on bio-compatible polymer encapsulated Silver nanoparticles
R. Anitha, B. Karthikeyan, T. Pandiyarajan, S. Vignesh, Arthur james, K.Vishwanathan and B. M. Murari
International Journal of Nanoscience, 10, (2011) 1179-1183
30) Optical properties of sol–gel synthesized calcium doped ZnO nanostructures
B. Karthikeyan, T. Pandiyarajan, K. Mangaiyarkarasi
Spectrochimica Acta Part A 82 (2011) 97– 101
29) Temperature dependence of the thermophysical properties of Neodymium doped borate glasses
N.G.C. Astrath, L.C. Malacarne, J.H. Rohling, A.N. Medina, M.L. Baesso, A.Steimacher, C. Jacinto,B. Karthikeyan
Optical Materials 33 (2011) 1563–1568
28) Fluorescence quenching of Rhodamine-6G in Au nanocomposite polymers
B. Karthikeyan
Journal of Applied Physics 108, 084311 (2010)
27)Spectrally broadened excitonic oscillations and enhanced optical nonlinearities in Dy3+ doped ZnO nanoparticles
B. Karthikeyan, Suchand Sandeep C S., T. Pandiyarajan, P. Venkatesan, Reji Philip
Applied Physics A (2010) 306,231-234
26) Simple room temperature synthesis and optical studies on Mg doped ZnO nanostructures
B. Karthikeyan, T. Pandiyarajan
J. Luminescence 130 (2010) 2317–2321
25) Terahertz Spectroscopy of Single-Walled Carbon Nanotubes in a Polymer Film:Observation of Low-Frequency Phonons
Sunil Kumar, N. Kamaraju, B. Karthikeyan, M. Tondusson, E. Freysz, A. K. Sood
J. Physical Chemistry. C 114 (2010) 12446–12450
24) Direct observation of low frequency confined acoustic phonons in silver nanoparticles: Terahertz time domain spectroscopy
Sunil Kumar, N. Kamaraju, B. Karthikeyan, M. Tondusson, E. Freysz, A. K. Sood
Journal of chemical Physics 133, 014502 (2010)
23) Study of optical properties and effective three-photon absorption in
Bi-doped ZnO nanoparticles
B. Karthikeyan, C. S. Suchand Sandeep, Reji Philip, M. L. Baesso
Journal of Applied Physics 106, 114304 (2009).
22) Optical and nonlinear absorption properties of Na doped ZnO nanoparticle dispersions
B. Karthikeyan, T. Pandiyarajan, P. Venkatesan, C.S. Suchand Sandeep, and Reji Philip
Applied Physics Letters 95, 023118 (2009).
21)Simple synthesis and spectroscopic studies on cobalt added ZnO nanocrystals
T. Pandiyarajan, B. Karthikeyan, P. Venkatesan, M. Ashok, S. Anandan, N.V.Giridharan
Spectrochimica Acta Part A 74, 84 (2009).
20) Thermal lens and interferometric method for glass transition and thermo physical properties measurements in Nd2O3 doped sodium zincborate glass
N. G. C. Astrath, A. Steimacher, J. H. Rohling, A. N. Medina, A. C. Bento, M. L. Baesso,
C. Jacinto, T. Catunda, S. M. Lima, B. Karthikeyan
Optics Express, 16, 21248 (2008).
19) Ultrafast switching time and third order nonlinear coefficients of microwave treated single walled carbon nanotube suspensions
N Kamaraju, Sunil Kumar, B. Karthikeyan, Bhalchandra Kakade, Vijayamohanan K. Pillai, A.
K. Sood
Journal of Nanosciecne and Nanotechnology 9 (2009) 5550-4
18) Fluorescent glass embedded silver nanoclusters: An optical study
B. Karthikeyan
Journal of Applied Physics 103, 114313 (2008).
17)Ultrafast electron dynamics and cubic optical nonlinearity of freestanding thin film of double walled carbon nanotubes
N. Kamaraju, Sunil Kumar, B. Karthikeyan, Alexander Moravsky, R. O. Loutfy, and A. K. Sood
Applied Physics Letters 93, 091903 (2008)
16) Optical properties and ultrafast optical nonlinearity of Yb3+ doped Sodium Borate and Bismuthate glasses
B. Karthikeyan, Suchand Sandeep C.S. Jaemine Cha, Hiromichi Takebe,Reji Philip, S. Mohan
Journal of Applied Physics 103, 103509 (2008).
15)Optical and nonlinear optical properties of copper nanocomposite glasses annealed near the glass softening temperature
B. Karthikeyan, M. Anija, C.S. Suchand Sandeep, T.M. Muhammad Nadeer, Reji Philip
Optics Communications,281, 2933 (2008)
14) Ultrafast optical power limiting in free-standing Pt - polyvinyl alcohol nanocomposite films synthesized in situ
B. Karthikeyan, M. Anija, P. Venkatesan, C.S. Suchand Sandeep, Reji Philip
Optics Communications, 280, 482 (2007)
13) Optical limiting with off-resonant excitations in Ag nanocomposite glasses: A z-scan study
B. Karthikeyan, Jinto Thomas, R. Kesavamoorthy
Journal of Non-Crystalline Solids, 353, 1346 (2007)
12) Spectral studies on Cu2+ doped sodium leadbismuthate glasses
B. Karthikeyan
Spectrochimica Acta A 66,860 (2007)
11) Novel synthesis and optical properties of Sm3+ doped Au- polyvinyl alcohol
nanocomposite films
B. Karthikeyan
Chemical Physics Letters 432, 513 (2006)
10) Optical Studies on Nd3+ doped sodium bismuthate glass
B. Karthikeyan, S. Mohan, S. P. Jose
Spectrochimica Acta A 65, 1134 (2006)
9) In Situ synthesis and nonlinear optical properties of Au:Ag nanocomposite polymer films
B. Karthikeyan, M. Anija, Reji Philip
Applied Physics Letters 88, 053104 (2006)
8) FTIR spectral analysis on heavy metal borate glasses
B. Karthikeyan
Modern Physics Letters B 20, 1 (2006)
7) Optical Nonlinearity in glass-embedded silver nanoclusters under ultrafast laser
excitation
B.Karthikeyan, Jinto Thomas, Reji Philip
Chemical Physics Letters 414, 346 (2005)
6) Optical and Nonlinear optical properties of Nd3+-doped heavy metal borate glasses
B. Karthikeyan, Reji Philip, S. Mohan
Optics Communications 246, 153 (2005)
5) Spectroscopic studies on Ag?polyvinyl alcohol nanocomposite films
B. Karthikeyan
Physica B: Condensed Matter,364, 328( 2005)
4) Spectroscopic and glass transition investigations on Nd3+-doped NaF?Na2O?B2O3 glasses
B. Karthikeyan and S. Mohan
Materials Research Bulletin, 39,1507(2004)
3) Spectroscopic and glass transition studies on Nd3+-doped sodium zincborate glasses
B. Karthikeyan, S. Mohan and M. L. Baesso
Physica B: Condensed Matter, 337, 249 (2003)
2) Optical and EPR studies on Cu2+-doped sodium borobismuthate glasses
B. Karthikeyan and S. Mohan
Materials Letters, 57, 3789 (2003)
1) Structural, optical and glass transition studies on Nd3+-doped lead bismuth borate glasses
B. Karthikeyan and S. Mohan
Physica B: Condensed Matter, 334, 298( 2003)