Conference Publications

Highly transparent RF magnetron-sputtered indium tin oxide films for a-Si:H/c-Si heterojunction solar cells amorphous/ crystalline silicon Shahzada QamarHussain, Woong-KyoOh, ShihyunAhn, Anh HuyTuanLe, SunboKim, S.M.Iftiquar, SubramaniamVelumani, YoungseokLee, JunsinYi. Materials ScienceinSemiconductorProcessing24(2014)225–230
Study of Low Resistivity and High Work Function ITO Films Prepared by Oxygen Flow Rates and N2O Plasma Treatment for Amorphous/Crystalline Silicon Heterojunction Solar Cells Shahzada Qamar Hussain1, Woong-Kyo Oh, Sunbo Kim, Shihyun Ahn, Anh Huy Tuan Le,Hyeongsik Park, Youngseok Lee, Vinh Ai Dao, S. Velumani, and Junsin. 2014 American Scientific Publishers
Structural studies of BaTiO3:Er3+ and BaTiO3:Yb3+ powders synthesized by hydrothermal method Garrido-Hernández, García-Murillo, Carrillo-Romo F de J, Cruz-Santiago L, Chadeyron G,Morales-Ramírez A de J, Velumani S JOURNAL OF RARE EARTHS, Vol. 32, No. 11, Nov. 2014, P. 1016
Lu2O3:Eu3+ glass ceramic films: Synthesis, structural and spectroscopic studies M.L. Carrera Jota, A. García Murillo, F. Carrillo Romo, M. García Hernández,A. de J. Morales Rami´rez, S. Velumani, E. de la Rosa Cruz, Abdelhadi Kassiba. Materials Research Bulletin 51 (2014) 418–425
Synthesis and optical properties of BaTiO3:Eu3+@SiO2 glass ceramic nano particles J. Reyes Miranda, A. García Murillo, F. de J. Carrillo Romo J. Oliva Uc, C. A. Flores Sandoval, A. de J. Morales RamÍrez ,S. Velumani,E. de la Rosa Cruz,V. Garibay Febles Springer Science Business Media New York 2014
Effect of Al concentrations on the electrodeposition and properties of transparent Al-doped ZnO thin films O. Baka, A. Azizi, S. Velumani,G. Schmerber & A. Dinia J Mater Sci: Mater Electron (2014)
Atomic structure characterization of Au-Pd bimetallic nanoparticles by aberration-corrected scanning transmission electron microscopy Esparza, R, Téllez-Vázquez O, Rodríguez-Ortiz, G, Ángeles-Pascual, A, Velumani, S, Pérez, R. Journal of Physical Chemistry C, Volume 118, Issue 38, 25 September 2014, Pages 22383-22388.
Plasmon resonance and raman modes in p<lc>b</lc> nanoparticles obtained in extract of opuntia ficus-indica plant. Ramírez-Rodríguez, L.P., Cortez-Valadez, M.,Bocarando-Chacon, J.-G., Arizpe-Chávez, H., Flores Acosta, M., Velumani, S., Ramírez-Bon. Vol. 9, No. 6 (2014) 1450070
Scanning fluorescence-based ultrasensitive detection of dengue viral DNA on ZnO thin films M. AdirajIyer, GoldieOza, S.Velumani, ArturoMaldonado, JosueRomero, M. deL.Muñoz, M.Sridharan, R.Asomoza, JunsinYi Sensors and Actuators B 202 (2014) 1338–1348

Structural and optical characterization of mechanochemically synthesized copper doped CdS nanopowders P. Reyes, S. Velumani Materials Science and Engineering B 177 (2012) 1452– 1459
Mechanochemical synthesis of nanostructured BiVO4 and investigations of related features R. Venkatesan, S. Velumani, A. Kassiba. Materials Chemistry and Physics 135 (2012) 842e848
Effect of the Milling Time of the Precursors on the Physical Properties of Sprayed Aluminum-Doped Zinc Oxide (ZnO:Al) Thin Films Ramireddy TR, Venugopal V, Bellam JB, Maldonado A , Vega-Perez J , Velumani S, Olvera, MD. MATERIALS Volume: 5 Issue: 8 Pages: 1404-1412 DOI: 10.3390/ma5081404 Published: AUG 2012
Synthesis of Aluminium doped zinc oxide nanowires hydrothermally grown on plastic substrates Jose A.Andraca Adame, Velumani Subramaniam, Josue Romero Ibarra Advances in materials Physics and Chemistry, ISSN:2162-513D, Oct 2012.

Size modulation of nanocrystalline silicon embedded in amorphous silicon oxide by Cat-CVD Y. Matsumoto, S. Godavarthi, M. Ortega, V. Sánchez, S. Velumani, P.S. Mallick. Thin Solid Films 519 (2011) 4498–4501
Structural and dielectrical studies on mechano-chemically synthesized indium doped CdS nanopowders B. J. Babu, S. Velumani, A. Kassiba J Mater Sci (2011) 46:5417–5422
Effect of milling time and heat treatment on the composition of CuIn0.75Ga0.25Se2 nanoparticle precursors and films B. Vidhya, S. Velumani, R. Asomoza J Nanopart Res (2011) 13:3033–3042

Proposal of a hybrid CHP system: SOFC/microturbine/absorption Chiller S. Velumani, Carlo Enrique Guzmán, Ricardo Peniche and Ramon Vega Int. J. Energy Res. 2010; 34:1088–1095
CO adsorption in PdxCoyXz (X=Au, Mo, Ni) tertiary alloy Nano-catalysts for PEM fuel cells Mauricio Garza Castañón, S. Velumani, Oxana V Kharissova, Marco A. Jiménez and Arunachala M. Kannan A theoretical analysis, International Journal for Energy (Avaiable online DOI: 10.1002/er.1714)
Electrosynthesis and studies on Cadmium-Indium-Selenide thin films T. Mahalingam, S. Thanikaikarasan, R. Chandramohan, Kihyun Chung,J.P. Chu, S.Velumani, Jin-Koo Rheef Materials Science and Engineering B 174 (2010) 236–241
Electrosynthesis and studies on Cadmium-Iron-Sulphide thin films S. Thanikaikarasan, T. Mahalingam, Soonil Lee, Hanjo Lim, S.Velumani, Jin-Koo Rhee Materials Science and Engineering B 174 (2010) 231–235
Structural studies of mechano-chemically synthesized CuIn1−xGaxSe2 nanoparticles B. Vidhya, S. Velumani, Jesus A. Arenas-Alatorre, Arturo Morales-Acevedo, R. Asomoza, J.A. Chavez-Carvayar. Materials Science and Engineering B 174 (2010) 216–221
Fabrication and characterization of n-CdSe0.7Te0.3/p-CdSe0.15Te0.85 solar cell N. Muthukumarasamy, S. Velumani , R. Balasundaraprabhu , S. Jayakumar , M.D. Kannan Vacuum 84 (2010) 1216–1219
AC and dielectric properties of vacuum evaporated InTe bilayer thin films P. Matheswaran, R. Sathyamoorthy, R. Saravanakumar, S. Velumani. Materials Science and Engineering B 174 (2010) 269–272
Electrodeposition and characterization of Fe doped CdSe thin films from aqueous solution S. Thanikaikarasan, K. Sundaram, T. Mahalingam, S. Velumanib, Jin-Koo Rhee. Materials Science and Engineering B 174 (2010) 242–248
Electrochemical deposition and studies on CdCr2S4 thin films T. Mahalingama, S. Thanikaikarasan, V. Dhanasekaran, R. Mariappan, P. Jayamurugan,S. Velumani, Jin-Koo Rhee. Materials Science and Engineering B 174 (2010) 249–252
Electrical and optical properties of ultrasonically sprayed Al-doped zinc oxide thin films B.J. Babu, A. Maldonado, S. Velumani, R. Asomoza Materials Science and Engineering B 174 (2010) 31–37
Characterization of Zinc-phthalocyanine–CdS composite thin films for photovoltaic applications S. Senthilarasu, R. Sathyamoorthy, Soo-Hyoung Lee, S. Velumani Vacuum 84 (2010) 1212–1215
Band structure calculations of Cu(In1−xGax)Se2 M. Chandramohana, S.Velumani, T. Venkatachalam. Materials Science and Engineering B 174 (2010) 200–204
An investigation on silar Cu(In1−xAlx)Se2 thin films M. Dhanam, B. Kavithaa, S. Velumani. Materials Science and Engineering B 174 (2010) 209–215
Characterization on pulsed laser deposited nanocrystalline ZnO thin films S. Venkatachalam, Yoshinori Kanno, S. Velumani Vacuum 84 (2010) 1199–1203
Fluorine doped zinc oxide thin films deposited by chemical spray, starting from zinc pentanedionate and hydrofluoric acid: Effect of the aging time of the solution R.R. Biswal, S. Velumani, B.J. Babu, A. Maldonado, S. Tirado-Guerra, L. Castañeda, M. de la L. Olvera. Materials Science and Engineering B 174 (2010) 46–49
Structure and temperature dependence of conduction mechanisms in hot wall deposited CuInSe2 thin films and effect of back contact layer in CuInSe2 based solar cells S. Agilan, D. Mangalaraj, Sa.K. Narayandass, G. Mohan Rao, S. Velumani Vacuum 84 (2010) 1220–1225
Preparation and characterization of MnSe thin films T. Mahalingam, S. Thanikaikarasan, V. Dhanasekaran, A. Kathalingam, S. Velumani, Jin-Koo Rhee. Materials Science and Engineering B 174 (2010) 257–262
Experimental and theoretical investigations of structural and optical properties of CIGS thin films M. Chandramohana, S. Velumani, T. Venkatachalam, Materials Science and Engineering B 174 (2010) 205–208
XVIII International Materials Research Congress: Symposium on Advances in Semiconducting Materials—Cancun, August 2009 S. Velumani Materials Science and Engineering B 174 (2010) 1
Structural, Photoluminescence and electrical properties of MW-CBD CdZnS thin films B.Vidhya, S. Velumani, Jesus Arenas-Alatorre, Victor Sanchez Resendiz, J.A. Chavez-Carvayar, R. Asomoza and Yuriy Kudriavtsev 2010 7th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE 2010)
Electrochemical performance of a nanostructured Pd70Co20Mo10 MEA Mauricio Garza-Castañón, M.A. Jiménez, J.L. Acevedo-Dávila Superficies y Vacío 23 (2) 19-23, junio de 2010
Effect of thickness and annealing on the structural and optical properties of chemical bath deposited CdS thin films Rodrigo Cue S, S.Velumani, P.J.Sebastian and J.A.Chavez-Carvayar Journal of New Materials for Electrochemical Systems, 13(2010)7-14
Synthesis and Characterization of NiCr Self-assembled Nanorings Victor M. Serdio, Miguel A. Gracia-Pinilla, S. Velumani,Eduardo G. Perez-Tijerina and Wilfred G. van der Wiel, Journal of Nano Research Vol. 9 (2010) pp 101-108

Microstructural characterization of electro-deposited CdSe thin films S.Thanikaikarasan, T.Mahalingam, S.R.Srikumar , Taekyu Kim, Yong Deak Kim, S.Velumani andRene Asomoza. Advanced Materials Research Vol. 68 (2009) pp 44-51
Effect of pH on composition, structure and magnetic properties of electrodeposited Co-Ni alloys T.Mahalingam, K.Sundaram, S.Velumani, M.Raja, S.Thanikaikarasan, Yong Deak Kim and Rene Asomoza. Advanced Materials Research Vol. 68 (2009) pp 52-59
Preparation and Microstructural studies of Electrodeposited FeSe Thin films K. S. Kim, S.Thanikaikarasan, T.Mahalingam, S.Velumani, T. K. Kim, Y. D. Kim and R. Asomoza Advanced Materials Research (2009), Vol. 68: 60-68
Electrochemical deposition and characterization of Cd-Fe-Se thin films S.Thanikaikarasan, T.Mahalingam, K. Sundaram, T. K. Kim, Y. D. Kim and S.Velumani Advanced Materials Research (2009), Vol. 68: 69-76.
Structural and optical studies of hot wall vacuum evaporated CdTeSn thin films K.Sakthivel, S.Velumani, T.Venkatachalam and S.Ganesan Advanced Materials Research Vol. 68 (2009) pp 77-83
Properties of Mechanochemically Synthesized ZnS Nanoparticles E. Dutková P. Baláž, P. Pourghahramani, S. Velumani, J. A. Ascencio, and N. G. Kostova 2009 American Scientific Publishers

Microstructural characterization of electro-deposited CdSe thin films S.Thanikaikarasan, T.Mahalingam, S.R.Srikumar , Taekyu Kim, Yong Deak Kim, S.Velumani andRene Asomoza. Advanced Materials Research Vol. 68 (2009) pp 44-51
Effect of pH on composition, structure and magnetic properties of electrodeposited Co-Ni alloys T.Mahalingam, K.Sundaram, S.Velumani, M.Raja, S.Thanikaikarasan, Yong Deak Kim and Rene Asomoza. Advanced Materials Research Vol. 68 (2009) pp 52-59
Preparation and Microstructural studies of Electrodeposited FeSe Thin films K. S. Kim, S.Thanikaikarasan, T.Mahalingam, S.Velumani, T. K. Kim, Y. D. Kim and R. Asomoza Advanced Materials Research (2009), Vol. 68: 60-68
Electrochemical deposition and characterization of Cd-Fe-Se thin films S.Thanikaikarasan, T.Mahalingam, K. Sundaram, T. K. Kim, Y. D. Kim and S.Velumani Advanced Materials Research (2009), Vol. 68: 69-76.
Structural and optical studies of hot wall vacuum evaporated CdTeSn thin films K.Sakthivel, S.Velumani, T.Venkatachalam and S.Ganesan Advanced Materials Research Vol. 68 (2009) pp 77-83
Properties of Mechanochemically Synthesized ZnS Nanoparticles E. Dutková P. Baláž, P. Pourghahramani, S. Velumani, J. A. Ascencio, and N. G. Kostova 2009 American Scientific Publishers

XIV International Materials Research Congress: Symposium 7, Materials Characterization — Cancun, August 2005 S. Velumani,Ramiro Perez Campos,Antonio Contreras Materials Characterization 58 (2007) 671
Optimization of tube length of the hot wall set up for depositing stoichiometric CuInSe2 thin films - structural and optical characterization S.Agilan, D.Mangalaraj, Sa.K.Narayandass, S.Velumani and Alex Ignatiev. Vacuum – Surface Engineering, surface instrumentation and vacuum technology, 81, iss 7(2007) 813-818.
Electrosynthesis and studies on Zn1-xHgxTe Thin Films T.Mahalingam, A. Kathalingam, S.Velumani, Soonil Lee, Hosun Moon, and Yong Deak Kim. Journal of New Materials for Electrochemical systems 10(2007)21-25.
Photoluminescence and persistent photoconductivity of AlxGa1−xN/GaN heterostructures s.j. chung,b. karunagaran,s. velumani,c.-h. hong,h.j. lee,e.-k. suh. Appl. Phys. A 86, 521–524 (2007)
Photoconductive Properties of Hot Wall Deposited CdSe0.7Te0.3 Thin Films N.Muthukumarasamy, R. Balasundaraprabhu, S. Jayakumar, M.D. Kannan, P.J.Sebastian and S.Velumani. Journal of New Materials for Electrochemical Systems 10, 1(2007)39-42.
Conduction Studies on ZnTe Thin Films R. Amutha, A. Subbarayan, R. Sathyamoorthy, K. Natarajan and S. Velumani. Journal of New Materials for Electrochemical Systems 10,1(2007)27-32.
Characterization of Hot Wall Deposited CdSe0.6Te0.4 Thin Films R. Balasundaraprabhu, S. Jayakumar, M. D. Kannan, N. Muthukumarasamy, S.Velumani Journal of New Materials for Electrochemical Systems 10,1(2007)55-59
Transport Properties of Sb2Se3 doped Bi2Te3 thin films J.Dheepa, R.Sathyamoorthy, A.Subbarayan, P.J.Sebastian and S.Velumani. journal of New Materials for Electrochemical Systems 10,1(2007)3-7
Structural studies on vacuum evaporated ZnSe/p-Si Schottky diodes S. Venkatachalam, D. Mangalaraj, Sa.K. Narayandass ,S. Velumani , P. Schabes-Retchkiman , J.A. Ascencio Materials Chemistry and Physics 103 (2007) 305–311
Characterization of vacuum-evaporated ZnSe thin films S. Venkatachalam , Y.L. Jeyachandran, P. Sureshkumar, A. Dhayalraj, D. Mangalaraj, Sa.K. Narayandass , S. Velumani Materials Characterization 58 (2007) 794–799
TiO2 thin film gas sensor for monitoring ammonia B. Karunagaran, Periyayya Uthirakumar, S.J. Chung, S. Velumani, E.-K. Suh Materials Characterization 58 (2007) 680–684
Electrical conduction in zinc phosphide thin films R. Sathyamoorthy, C. Sharmila, P. Sudhagar, S. Chandramohan, S. Velumani Materials Characterization 58 (2007) 730–734
Influence of Annealing on Structural and Optical Properties of Zn3P2 Thin Films R.Sathyamoorthy, C.Sharmila, K.Natarajan, S.Velumani Materials Characterization 58, 8-9(2007)745-749
Electrosynthesis and characterization of lead oxide thin films T. Mahalingam, S. Velumani, M. Raja, S. Thanikaikarasan, J.P. Chu, S.F. Wang, Y.D. Kim Materials Characterization 58 (2007) 817–822
Electrochemical deposition and characterization of Ni–P alloy thin films T. Mahalingam, M. Raja, S. Thanikaikarasan, C. Sanjeeviraja, S. Velumani, Hosun Moon, Yong Deak Kim Materials Characterization 58 (2007) 800–804
Electrodeposition and characterization of HgSe thin films T. Mahalingam, A. Kathalingam, C. Sanjeeviraja, R. Chandramohan, J.P. Chu, Yong Deak Kim, S. Velumani Materials Characterization 58 (2007) 735–739
Structure, Photo-electric characteristics studies of Hot Wall Deposited CuInSe2 thin films and effect of buffer layer in CuInSe2 based Solar Cells. S.Agilan, S.Vekatachalam, D.Mangalaraj, Sa.K.Narayandass, G.Mohan Rao, S.Velumani, and Vijay Singh Materials Characterization 58, 8-9(2007)701-707
Space charge limited current conduction in Bi2Te3 thin films R. Sathyamoorthy, J. Dheepa, S. Velumani Materials Characterization 58 (2007) 842–846
Characterization of Bi2Te3 thin films-Flash evaporation method J.Dheepa, R.Sathyamoorthy and S.Velumani Materials Characterization 58, 8-9(2007)782-785
Spectroscopic ellipsometry (SE) studies on vacuum-evaporated ZnSe thin films S. Venkatachalam , D. Soundararajan , P. Peranantham , D. Mangalaraj ,Sa.K. Narayandass , S. Velumani , P. Schabes-Retchkiman Materials Characterization 58 (2007) 715–720
Effect of rapid thermal annealing on the properties of PECVD SiNx thin films B. Karunagaran, S.J. Chunga, S. Velumani, E.-K. Suh. Materials Chemistry and Physics 106 (2007) 130–133

Electrochemical synthesis and characterization of zinc selenide thin films
T. MAHALINGAM, A. KATHALINGAM, S. VELUMANI, M. H. SUN, K. Y. DEAK
J MATER SCI 41 (2006) 3553–3559

Electro polymerization and characterization of PMeT thin films S.Velumani, J.A.Ascencio, G.Canizal, P.J.Sebastian, J.Garcia-Serrano and U.Pal Journal of Polymer Science Part B: Polymer Physics.vol.43, 21(Sept.2005)3058-3068
Sputter deposition and Characterization of nitrided Ni/Cr alloys S.Velumani, H. Castaneda, U.Pal, J.A.Chavez, J.A.Ascencio and P.J.Sebastian. Journal of solid state electrochemistry. 9(8) (2005)535-546
Structural and annealing studies of potentiostatically deposited Cu2Othin films T. Mahalingam, J.S.P. Chitra, J.P. Chub,S. Velumani, P.J. Sebastian Solar Energy Materials & Solar Cells 88 (2005) 209–216
Characterization of electrodeposited Zn1−xHgxSe thin films T Mahalingam, A Kathalingam, S Velumani, Soonil Lee,Kyeung Seek Lew and Yong Deak Kim Semicond. Sci. Technol. 20 (2005) 749–754
Structural, optical and Raman scattering studies on DC magnetron sputtered titanium dioxide thin films B. Karunagaran, Kyunghae Kim, D. Mangalaraj, Junsin Yi, S. Velumani Solar Energy Materials & Solar Cells 88 (2005) 199–208
Development of Electrochemical Cell Based on PEG+NaCl Electrolytic system R.Sathyamoorthy, S.Velumani, A.Subbarayan, K.Natarajan, P.J.Sebastian. Journal of New Materials for Electrochemical Systems 8, 121-125 (2005)
Dielectric properties of Bi2Te3 Thin Films J.Dheepa, R.Sathyamoorthy, A.Subbarayan, P.J.Sebastian, R.Perez and S.Velumani Solar Energy Materials and Solar Cells. Issue 2, 15 July 2005, Pages 187-198

Theoretical and Experimental analysis of ZnPc for its local ordering and electronic structure g.a. rosquete-pina,c. zorrilla,s. velumani1,j. arenas-alatorre, j.a. ascencio1, Appl. Phys. A 79, 1913–1918 (2004)
Pipeline right-of-way remote inspection system Sergiy Sadovnychiy, Igor Bulgakov and Subramaniam Velumani. WSEAS Transactions on circuits and systems, 3(Iss.4) (2004)805
Structural analysis of cobalt titanate nanoparticles obtained by sol–gel process f. pacheco,m. González,a. medina,s. velumani,j.a. Ascencio. Appl. Phys. A 78, 531–536 (2004)
Influence of surface phenomena in oxidative desulfurization withWOx/ZrO2 catalysts e. torres-garcía,g. canizal,s. velumani,l.f. ram´irez-verduzco,f. murrieta-guevara,j.a. ascencio Appl. Phys. A 79, 2037–2040 (2004)
Formation of ZnS nanorods by simple evaporation technique s. velumani_ j.a. ascencio Appl. Phys. A 79, 153–156 (2004)
Dielectric and conduction properties of hot wall deposited CdSe films Sa.K.Narayandass, D.Mangalaraj, Xavier Mathew and P.J.Sebastian Materials and Solar Cells 81 (3)(2004)323-338
Electrical resistivity of thermally evaporated bismuth telluride thin films J. Dheepa, R. Sathyamoorthy, S. Velumani, A. Subbarayan,K. Natarajan, P.J. Sebastian Solar Energy Materials & Solar Cells 81 (2004) 305–312

Characterization of zinc phthalocyanine (ZnPc) for photovoltaic applications s. senthilarasu,s. velumani2,r. sathyamoorthy,a. subbarayan1,j.a. ascencio2,g. canizal2,p.j. sebastian2,3j.a. chavez4r. perez2 Appl. Phys. A 77, 383–389 (2003)
Thickness dependent properties of hot wall deposited CdSe films S. VELUMANI∗, X. MATHEW, P. J. SEBASTIAN JOURNAL OF MATERIALS SCIENCE LETTERS 22, 2003, 25– 28
Structural and optical properties of Hot wall deposited CdSe films S.Velumani, Xavier Mathew, P.J.Sebastian, Sa.K.Narayandass and D.Mangalaraj Materials and Solar Cells, 76(2003)347
Structural and optical characterization of hot wall deposited CdSexTe1_x films S. Velumani, Xavier Mathew, P.J. Sebastian Solar Energy Materials & Solar Cells 76 (2003) 359–368
Development of CdTe thin films on flexible substrates—a review Xavier Mathewa, Gerald W. Thompson, V.P. Singh,J.C. McClure, S. Velumani, N.R. Mathews, P.J. Sebastian Solar Energy Materials & Solar Cells 76 (2003) 293–303

Structural and optical properties of vacuum deposited CdSe thin films
T.Venkatachalam and S.Velumani

Bulletin of Indian Vacuum society, 4(2001)21-28

Influence of substrate temperature on structure and carrier density in hot wall deposited CdSe films
S.Velumani, Narayandass.Sa.K and Mangalaraj.D,T.Venkatachalam and S.Velumani.
Bulletin of Indian Vacuum society, 2(1999)11-25

Structural characterization of hot wall deposited CdSe thin films
S.Velumani, Narayandass.Sa.K and Mangalaraj.D
SemiCond.Sci.Technol, 13(1998)1016-24

Laser damage studies on hot wall deposited CdSe thin films
S.Velumani, Narayandass.Sa.K, Mangalaraj.D and C.P.Girija Vallabhan
.Mater.Sci.Lett. 16(1997)1974-76

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