Dr. Biswajit Ray

Assistant Professor, Electrical & Computer Engineering Department


Dr. Ray is an Assistant Professor in the Department of Electrical and Computer Engineering. His research spans the boundaries of electron devices and systems for addressing the challenges in security, sensing and energy harvesting. Before joining UAH, he worked in SanDisk Corporation, Milpitas, California, USA, developing 3D NAND Flash memory technology.

Dr. Biswajit Ray's Curriculum Vitae

Dr. Biswajit Ray's Personal Webpage


  • Ph.D., Electrical & Computer Engineering, Purdue University, 2013
  • M.S., Engineering, Indian Institute of Science, 2008
  • B.Tech., Electrical & Electronics Engineering, National Institute of Technology, 2006


  • B. Ray, "Flash memory based radiation sensing", U.S. Patent Application No. 15,717,598.
  • B. Ray, M. V. Dunga, C. Chen, "Apparatus and method for preconditioning currents to reduce errors in sensing for non-volatile memory", U.S. Patent # 9704588 (2017).
  • B. Ray, A. Dogan, C. Chen, “Temperature dependent sensing scheme to counteract cross-temperature threshold voltage distribution widening”, U.S. Patent # 9,530,512 (2016).

Honors & Awards

  • Winner of Innovation Bazaar, SanDisk Corporation, Milpitas, USA. - 2015
  • Best student paper award finalist, IEEE Photovoltaic Specialist Conference, Tampa, FL, USA. - 2013
  • Best poster award, IEEE Photovoltaic Specialist Conference, Austin, TX, USA. - 2012
  • Recognized by American Institute of Physics for most notable Applied Physic Letters article published in 2012 - 2012
  • Best poster award, Symposium on Nanomaterial for Energy, Indo-US workshop, Purdue University, IN, USA. - 2012
  • Technoinventor Award for master’s thesis, Indian Semiconductor Association, India. - 2009

Selected Publications

  • B. Ray, and A. Milenkovic, "True Random Number Generation Using Read Noise of Flash Memory Cells", IEEE Transactions on Electron Devices, vol. 65, no. 2, pp. 963-969, 2018.
  • L. Davies, P. Kumari, N. P. Bhat and B. Ray, “Prospect of State-of-the-Art Flash Chips for Dosimetry Application”, IEEE Nuclear and Space Radiation Effects Conference (NSREC), 2018.
  • B. Ray, A.G. Baradwaj, M.R. Khan, B.W. Boudouris, and M.A. Alam, “Collection-limited theory interprets the extraordinary response of single semiconductor organic solar cells”, Proceedings of the National Academy of Sciences, 112 (36), 11193-11198, 2015.
  • B. Ray, A.G. Baradwaj, B.W. Boudouris, and M.A. Alam, “Defect Characterization in Organic Semiconductors by Forward Bias Capacitance Analysis”, The Journal of Physical Chemistry C 118 (31), 17461-17466, 2014.
  • B. Ray, and M.A. Alam, “Achieving Fill Factor Above 80% in Organic Solar Cells by Charged Interface”, IEEE Journal of Photovoltaics, 3(1), 310-317, 2013.
  • B. Ray, M.S. Lundstrom, and M.A. Alam, "Can morphology tailoring improve the open circuit voltage of organic solar cells?", Applied Physics Letters, vol. 100, pp. 013307-3, 2012.
  • B. Ray, and M.A. Alam, "Random vs regularized OPV: Limits of performance gain of organic bulk heterojunction solar cells by morphology engineering", Solar Energy Materials and Solar Cells, vol. 99, pp. 204-212, 2012.
  • B. Ray, P.R. Nair, and M.A. Alam, "Annealing Dependent Performance of Organic Bulk-Heterojunction Solar Cells: A Theoretical Perspective", Solar Energy Materials and Solar Cells, vol.95, pp. 3287-3294, 2011.