Biography
Winston V. Schoenfeld is currently Director of the Solar Technologies Research Division (STRD) at The Florida Solar Energy Center (FSEC) and Professor of Optics at CREOL, The College of Optics & Photonics at the University of Central Florida. He received his Ph.D. degree in materials science from the University of California, Santa Barbara (UCSB) in 2000, and holds an MS and BS in Materials Science and Engineering from the University of Florida. Prior to joining CREOL, Dr. Schoenfeld served as Device Manager at Uniroyal Optoelectronics, working in the area of high brightness light emitting diodes (LEDs), and later in 2003 founded Medical Lighting Solutions, Inc., a supplier of specialty LED lighting solutions for the medical and biomedical industries. He has authored/co-authored more than 120 refereed journal publications in the areas of photovoltaics, the epitaxial growth and properties of oxide semiconductors, oxide and nitride-semiconductor light emitting diodes, self-assembled quantum dots, e-beam nano-lithography, quantum information/networks, comprehensive modeling of nanowire devices, and solid-state nuclear material detection. Dr. Schoenfeld is a Fellow of SPIE and currently serves as a Principal Editor for the Journal of Materials Research.
Awards & Honors
- International Society for Optics and Photonics (SPIE) Fellow
- 2017 Promoted to the rank of Professor
- 2016 Research Incentive Award
- 2010 Teaching Incentive Program (TIP) Award
- 2010 UCF TIP Award
- 2009 Promotion and Tenure Approved
- 2008 Elected as Chair of the Florida Chapter of the American Vacuum Society
- 2006 Elected to the Executive Committee of the Florida Chapter of the American Vacuum Society
- 2006 Presidential Major Research Equipment Award
Research Group
Research in epitaxial growth and properties of oxide semiconductors, oxide and nitride-semiconductor light emitting diodes, self-assembled quantum dots, and e-beam nano-lithography.Publications
I. Hatipoglu, D.A. Hunter, P. Mukhopadhyay, M.S. Williams, P.R. Edwards, R.W. Martin, W.V. Schoenfeld and G. Naresh-Kumar "Correlation between deep-level defects and functional properties of ß-(SnxGa1-x)2O3 on Si photodetectors" Journal of Applied Physics, 130(20), A. 204501 (2021)
I. Hatipoglu, P. Mukhopadhyay, F. Alema, T.S. Sakthivel, S. Seal, A. Osinsky and W.V. Schoenfeld "Tuning the responsivity of monoclinic (InxGa1-x)(2)O-3 solar-blind photodetectors grown by metal organic chemical vapor deposition" Journal of Physics D: Applied Physics, 53(45), A. 454001 (2020)
K. Ogutman, N. Iqbal, G. Gregory, M.J. Li, M. Haslinger, E. Cornagliotti, W.V. Schoenfeld, J. John and K.O. Davis "Spatial atomic layer deposition of aluminum oxide as a passivating hole contact for silicon solar cells" Physica Status Solidi A-Applications and Material Science, A. 2000348 (2020)
P. Mukhopadhyay and W.V. Schoenfeld "High responsivity tin gallium oxide Schottky ultraviolet photodetectors" Journal of Vacuum Science & Technology A, 38(1) (2020)
F. Alema, A. Osinsky, P. Mukhopadhyay, and W.V. Schoenfeld "Epitaxial growth of Co3O4 thin films using Co(dpm)(3) by MOCVD" Journal of Crystal Growth, 525, UNSP 125207 (2019)
H. Ali, C. Maynau, L. Lajaunie, G. Gregory, L.J. Wu, J.P. Looney, Y.M. Zhu, M. Schneider, W.V. Schoenfeld, and K.O. Davis "Transmission electron microscopy and electron energy-loss spectroscopy studies of hole-selective molybdenum oxide contacts in silicon solar cells" ACS Applied Materials & Interfaces, 11(46), 43075-43080 (2019)
P. Mukhopadhyay and W.V. Schoenfeld "Tin gallium oxide solar-blind photodetectors on sapphire grown by molecular beam epitaxy" Applied Optics, 58(13), pp. D22-D27 (2019)
N. Zin, S. Bakhshi, M. Gao, H. Ali, I. Kashkoush, and W.V. Schoenfeld "Effective use of UV-ozone oxide in silicon solar cell applications" Physica Status Solidi - Rapid Research Letters 13(2), 1800488 (2019)
F. Alema, B. Hertog, P. Mukhopadhyay, Y. Zhang, A. Mauze, A. Osinsky, W.V. Schoenfeld, J.S. Speck, and T. Vogt "Solar blind Schottky photodiode based on an MOCVD-grown homoepitaxial beta-Ga2O3 thin film" APL Materials, 7(2), 022527 (2019)
S. Bakhshi, N. Zin, H. Ali, M. Wilson, D. Chanda, K.O. Davis, and W.V. Schoenfeld "Simple and versatile UV-ozone oxide for silicon solar cell applications" Solar Energy Materials and Solar Cells, 185, pp. 505–510 (2018) PDF
K. Ogutman, K. Davis, H. Ali, S. Martell, W.V. Schoenfeld "Automated detection of rear contact voids in perc cells with photoluminescence imaging" Solar Energy Materials and Solar Cells, 179, pp. 31-35 (2018)
K. Ögütman, K. O. Davis, H. Ali, S. R. Martell, and W. V. Schoenfeld "Automated detection of rear contact voids in perc cells with photoluminescence imaging" Solar Energy Materials and Solar Cells 179, 31 (2018) (2018)
S. Bakhshi, N. Zin, H. Ali, M. Wilson, D. Chanda, K. O. Davis, and W. V. Schoenfeld "Simple and versatile UV-ozone oxide for silicon solar cell applications" Solar Energy Materials and Solar Cells 185, 505 (2018) (2018)
K.O. Davis and W.V. Schoenfeld "Engineered interfaces using surface and contact passivation in silicon solar cells" Electrochemical Society Interface, 27(1), pp. 63-66 (2018)
R.S. Bonilla, K.O. Davis, E.J. Schneller, W.V. Schoenfeld, and P.R. Wilshaw "Effective antireflection and surface passivation of silicon using a SiO2/a-TiOx film stack" IEEE Journal of Photovoltaics, 7(6), pp. 1603-1610 (2017)
F. Alema, B. Hertog, A. Osinsky, P. Mukhopadhyay, M. Toporkov, and W.V. Schoenfeld "Fast growth rate of epitaxial beta-Ga2O3 by close coupled showerhead MOCVD" Journal of Crystal Growth, 475, pp. 77-82 (2017)
H. Ali, A. Moldovan, S. Mack, W.V. Schoenfeld, and K.O. Davis "Transmission electron microscopy based interface analysis of the origin of the variation in surface recombination of silicon for different surface preparation methods and passivation materials" Physica Status Solidi A - Applications and Materials Science, 214(10), 1700286 (2017)
H. Ali, X.B. Yang, K. Weber, W.V. Schoenfeld, and K.O. Davis "Transmission electron microscopy studies of electron-selective titanium oxide contacts in silicon solar cells" Microscopy and Microanalysis, 23(5), pp. 900-904 (2017)
H. Ali, A. Moldovan, S. Mack, M. Wilson, W.V. Schoenfeld, and K.O. Davis "Influence of surface preparation and cleaning on the passivation of boron diffused silicon surfaces for high efficiency photovoltaics" Thin Solid Films, 636, pp. 412-418 (2017)
E. J. Schneller, K. Ogutman, S. Guo, W. V. Schoenfeld, and K. O. Davis "Crystalline Silicon Device Loss Analysis Through Spatially Resolved Quantum Efficiency Measurements" IEEE Jour. of Photovoltaics 7 (4), 957 (2017) (2017)
Alumni
PhD
Isa Hatipoglu, Optics Ph.D., Fall 2021Munan Gao, Optics Ph.D., Spring 2021
Sara Bakhshi, Electrical Engineering Ph.D., Summer 2018
Nizamettin Kortan Ogutman, Electrical Engineering Ph.D., Spring 2018
Haider Ali, Materials Science Ph.D., Spring 2017
Kristopher Davis, Optics Ph.D., Spring 2015
Jeffrey D'Archangel, Optics Ph.D., Fall 2014
Matthew Weed, Optics Ph.D., Summer 2013
Ming Wei, Optics Ph.D., Summer 2013
Casey Boutwell, Optics Ph.D., Spring 2013
Jonathan Rosch, Optics Ph.D., Fall 2012
Clarisse Mazuir, Optics Ph.D., Spring 2011
Hubert Seigneur, Optics Ph.D., Fall 2010
Jeremy Mares, Optics Ph.D., Spring 2010
MS
Matthew Falanga, Optics M.S., Fall 2010Amy Thompson, Optics M.S., Summer 2007