Dr. K Uday Kumar

Assistant Professor

Department of Physics

National Institute of Technology, Warangal - 506004, Telangana, INDIA

: kanapuram.udaykumar@nitw.ac.in

: 9940107507

Interests: Thin Films; Electrochromics; Transparent Conducting Oxides; Energy Conservative Materials and Devices


Dr. K Uday Kumar received his M.Sc (Electronics and Instrumentation) degree from the University Science College, Osmania University, India. He obtained his Ph.D. degree in the field of Thin films metal oxide materials from Indian Institute Of Technology Madras (IIT Madras), Chennai in 2016.  He is currently an Assistant Professor at Dept.Of. Physics, NIT Warangal, India. Prior to joining the NIT Warangal, he was working as Assistant Professor at Vardhaman College of Engineering, Hyderabad for one year.  He also worked as an Ad-Hoc faculty at Dept.Of. Physics, NIT Warangal about one and half year. 

          Dr. K Uday Kumar has worked on the metal oxide thin films during his doctoral studies.  He has developed metal oxide thin films for electrochromic applications via the magnetron sputtering method. He has worked mainly on semiconductor metal oxides such as Tungsten Oxide, Indium Tin Oxide (ITO), TiO2, and other materials. Currently, He is working on applications of energy conservation and storage application.

Course Taught Previously

1. Engineering Physics

2. Electromagnetic Theory



[1] K. Uday Kumar, Dhanya S Murali and A Subrahmanyam, Flexible electrochromics: magnetron sputtered tungsten oxide (WO3−x ) thin films on Lexan (optically transparent polycarbonate) substrates, J. Phys. D: Appl. Phys. 48, 255101 (2015).

[2]  Deepak Kumar Kaushik, K. Uday Kumar, A Subrahmanyam, Electrical transport in disordered tin doped indium oxide (ITO) thin films: Quantum correction to the conductivity, AIP Advances 7, 015109 (2017).

[3] K. Uday Kumar S D Bhat and A Subrahmanyam; Electrochromic device with Magnetron sputtered Tungsten oxide (WO3) and nafion membrane: performance with varying tungsten oxide thickness- a report, Mater. Res. Express. 6, 045513, (2019).

 [4] K. Uday Kumar and A Subrahmanyam; Electrochromic properties of tungsten oxide (WO3) thin films on lexan (polycarbonate) substrates prepared with neon as sputter gas, Mater. Res. Express, 6, 065502, (2019)

[5] K. Uday Kumar and A Subrahmanyam, Electrochromic properties of reactive magnetron sputtered WO3 thin films prepared with neon as sputter gas. J.Nanosci. Nanotechnol. 20, 3724–3733 (2020).

[6] B M Pratima, Uday Kumar K and A Subrahmanyam, Silver surface tarnish protection with Sol-gel prepared TiO2+SiO2 coatings. AIP Conference Proceedings (2020), Accepted for publication.

[7] K. Uday Kumar, Deepak Kumar Kaushik, KM Karuppasamy and A Subrahmanyam; High efficiency Magnetron sputtered tungsten oxide thin film electrochromics with Neon sputtering, 59th Annual Technical Conference Proceedings, Society of Vacuum Coaters Indianapolis, USA, May 9–13 (2016).

[8] K Uday Kumar, D.S. Murali, M.K. Jain, and A. Subrahmanyam; Studies on Tungsten Oxide (WO3) Based Electrochromics on Lexan (Flexible) Substrates Prepared by Reactive DC Magnetron Sputtering; 57th Annual Technical Conference Proceedings, Chicago, IL May 3–8, (2014).

Book Chapter:

1. Synthesis, Properties, and Applications of Transition Metal OxideNanomaterials, R. Rakesh Kumar, K. Uday Kumar, and D. Haranath, Book Chapter -CRC Press (ISBN:9780367275471), June 2020. (Pawade, V. (Ed.), Salame, P. (Ed.), Bhanvase, B. (Ed.). (2021). Multifunctional Nanostructured Metal Oxides for Energy Harvesting and Storage Devices. Boca Raton: CRC Press, https://doi.org/10.1201/9780429296871)


PHDs Supervised






Awards and Honors


Additional Responsibility