Biography
Dipankar Roy did his undergraduate studies at Calcutta University, India. For his doctoral work at Rensselaer Polytechnic Institute during 1981-86, Roy studied electrochemical interfaces using surface enhanced Raman scattering (SERS). After receiving his Ph.D. in Physics (condensed matter - experimental) , Roy did his postdoctoral research at Cornell University during 1986-1989. His research at Cornell focused on nonlinear optical and ultrafast multi-photon processes in liquids. He joined the faculty of the Physics Department at ÐÓ°ÉÂÛ̳ in the fall of 1989. Roy's earlier research at Clarkson concentrated on optical studies of solid-liquid interfaces using optical second harmonic generation, surface plasmon resonance, and infrared ellipsometry techniques, in combination with a broad range of electro-analytical measurements. Roy's group at Clarkson has also been engaged in characterization studies of layer nanostructures, thin-film interfaces and photo-voltaic systems using electroanalytical and optical techniques. Roy’s current research focuses on various materials aspects of electrochemical energy storage/conversion and semiconductor device fabrication.​
ÐÓ°ÉÂÛ̳ Background
Physics Ph.D. - 1986 Rensselaer Polytechnic Institute
Physics M.Sc, B.Sc - Calcutta University (India)
Experience
Chair Physics Department, ÐÓ°ÉÂÛ̳, 2010-present​
Professor Physics Department, ÐÓ°ÉÂÛ̳, 2006-present​
Associate Professor Physics Department, ÐÓ°ÉÂÛ̳, 1995-2006​
Assistant Professor Physics Department, ÐÓ°ÉÂÛ̳, 1989-1995​
Postdoctoral Associate Cornell University, 1986-1989 ​
Courses Taught
- PH323/523 - Optics​
- PH327 & PH328 - Experimental Physics I & II​
- PH380/580 & PH381/581 -: Electromagnetic Theory I & II​
- PH232 - Modern Physics Laboratory​
- PH681-682 - Sel. Topics Physics​
- PH251 - Astronomy Lab​
- PH679 - Quantum Theory of Solids​
- PH131 & PH132 - Physics I & II​
Research Interests
- Materials for energy storage and energy conversion devices
- Chemical Mechanical Planarization (CMP)
- Electrochemical deposition for integrated circuit applications
- Time resolved Fourier transform electrochemical impedance spectroscopy (FT-EIS
- Surface plasmon resonance spectroscopy
- Optical characterization of chemically assembled nanomaterials
- Second harmonic generation (SHG) studies of solid-liquid interfaces
Current Research:
- Tribo-electroanalytical evaluation of CMP slurries and post-CMP cleaning solutions​
- Anode materials for Direct alcohol fuel cells​
- Electrodes and electrolytes for lithium ion batteries​
- Electrodes for redox supercapacitors​
Publications
- A. Johnson and D. Roy, In Situ Electrochemical Evaluation of Post-CMP Cleaning Reactions for Cobalt and Copper Films under Brushing Conditions, ECS Journal of Solid State Science and Technology 8 (2019) .​
- D. E. Simpson, C. A. Johnson, and D. Roy, Pulsed Galvanostatic Electrodeposition of Copper on Cobalt Using a pH-Neutral Plating Bath and Electroless Seeds, Journal of The Electrochemical Society 166 (2019) .​
- D. Roy, Electrochemical Assessment of Slurry Formulations for Chemical Mechanical Planarization of Metals: Trends, Benefits and Challenges, ECS Journal of Solid State Science and Technology 7 (2018) . Invited Perspective Article.​
- S. E. Rock, D. E. Simpson, M. C. Turk, J. T. Rijssenbeek, G. D. Zappi and D. Roy, Nucleation Controlled Mechanism of Cathode Discharge in a Ni/NiCl2 Molten Salt Half-Cell Battery, Journal of The Electrochemical Society163 (2016) .​
- X. Shi, D. E. Simpson and D. Roy, The role of chemisorbed hydroxyl species in alkaline electrocatalysis of glycerol on gold,​ Physical Chemistry Chemical Physics 17 (2015) .​
- J.E. Garland, D.J. Crain and D. Roy, Utilization of electrochemical impedance spectroscopy for experimental characterization of the diode features of charge recombination in a dye sensitized solar cell, Electrochimica Acta 148 (2014) .​
- ​D. J. Crain, J.P. Zheng and D. Roy, "Electrochemical Examination of Core-Shell Mediated Li+ Transport in Li4Ti5O12 Anodes of Lithium Ion Batteries", Solid State Ionics 240 (2013) .​
- J. E. Garland, D. J. Crain, J. P. Zheng, C. M. Sulyma and D. Roy, Electro-analytical characterization of photovoltaic cells by combining voltammetry and impedance spectroscopy: voltage dependent parameters of a silicon solar cell under controlled illumination and temperature, Energy and Environtal Science, 4 (2011) .​
- J.P. Zheng, C.M. Pettit, P.C. Goonetilleke, G.M. Zenger and D. Roy, D.C. Voltammetry of Ionic Liquid based Capacitors: Effects of faradaic reactions, electrolyte resistance and voltage scan speed investigated using an electrode of carbon nanotubes in EMIM-EtSO4, Talanta 78 (2009) .​
- ​C.M. Pettit, P.C. Goonetilleke, C.M. Sulyma and D. Roy, Combining impedance spectroscopy with cyclic voltammetry: Measurement and analysis of kinetic parameters for faradaic and nonfaradaic reactions on thin-film gold,​ Analytical Chemistry 78 (2006) .​â¶Ä‹
- K.A. Assiongbon and D. Roy, Electro-oxidation of methanol on gold in alkaline media: Adsorption characteristics of reaction intermediates studied using time resolved electro-chemical impedance and surface plasmon resonance techniques, Surface Science 594 (2005) 99-119.​
- D. Roy and J. H. Fendler, Reflection and Absorption Techniques for Optical Characterization of Chemically Assembled Nanomaterials, Advanced Materials 16 (2004) .​