Indranil Bhattacharya, Ph.D.

Indranil Bhattacharya portrait


Indranil  Bhattacharya, Ph.D.




Electrical and Computer Engineering

Email Address:


(931) 372-3352


Prescott Hall (PRSC) 440A

Research Areas and Interests

Battery Research Interest Areas

  • Synthesis, electro-chemical analysis and testing of lithium ion and sodium ion battery technologies.
  • Lithium sulfur batteries for long range electric vehicles (EVs). Limiting polysulfide formation, increasing conductivity and cycle life by solid state synthesis.
  • Doping and structural analysis of lithium and sodium ion batteries for higher ionic conductivity.
  • Electro-chemical modeling of batteries using finite-element method.
  • Electrical modeling, state-of-charge and state-of-health estimation of batteries.

High-Efficiency Solar Cell Research

  • Design and modeling of high-efficiency III-V multijunction solar cells.
  • Quantum efficiency optimization to achieve current matching between different subcell layers.
  • Optimization of semiconductor parameters such as thicknesses of emitter and base layers, doping concentrations, minority carrier lifetimes and surface recombination velocities to achieve highest efficiency.
  • Perovskite material based solar cell fabrication and modeling.
  • Maximum power point tracking algorithms for efficient PV integration.

Dr. Indranil Bhattacharya is a tenured Associate Professor of Electrical and Computer Engineering department at Tennessee Tech University. He was an Assistant Professor from August 2013 to May 2019. He received his Ph.D. and M.S. degrees in Electrical Engineering in 2013 and 2009 respectively from the Florida State University. He received his Bachelor of Engineering (B.E) degree in Electronics and Communication Engineering in First Class with Distinction from India. Dr. Bhattacharya worked as an Adjunct Professor in the Electrical and Computer Engineering Department at the Florida State University since 2011 January prior to his appointment at Tennessee Tech University. Dr. Bhattacharya’s research interests are on high-efficiency III-V solar cells, energy storage (batteries and supercapacitors), semiconductor electronics, photonics & optics, wireless power transfer and electromagnetics. He is the director of the SOLBAT-TTU Energy Research Laboratory at Tennessee Tech University. He is the main inventor of 2 US patents. He has published several peer reviewed technical papers in reputed journals and conferences. He serves frequently in National Science Foundation (NSF) review panels. He served as a reviewer of journals such as IEEE Journal of Photovoltaics, Solar Energy Journal, Electrochimica Acta, IEEE Transactions on Smart Grid and IEEE Photonics Journal. He is a member of IEEE. He is the faculty advisor of electrical and computer engineering honor society Eta-Kappa-Nu (HKN).

Educational Background

  • Florida State University, Tallahassee Florida, Degree: Doctorate of Philosophy, Major: Electrical Engineering, 2013.
  • Florida State University, Tallahassee Florida, Degree: Masters of Science, Major: Electrical Engineering, 2009.