Research Interests: Semiconductor devices and circuits for flexible electronics and Neuromorphic applications.

For latest list of publications, visit https://scholar.google.com/citations?hl=en&user=6fhwiY8AAAAJ

Journals

• Roshni Oommen; Adikiran S B; Akash R; Gautham G; Aswathi R Nair, "Gate Tunable Retention in Optoelectronic Synapses Using Oxide Semiconductor Thin Film Transistors", IEEE Transactions on Nanotechnology, Aug 2025. https://doi.org/10.1109/TNANO.2025.3602073
• Roshni Oommen, Dinesh Sai Ganapathi Mavuri, Kiran Jose and Aswathi R Nair, "Tunable memory behavior in light stimulated artificial synapse based on ZnO thin film transistors", Journal of Physics D: Applied Physics, vol.57, no.46, Aug 2024. https://doi.org/10.1088/1361-6463/ad6dff
• Roshni Oommen, Kiran Jose, Anjana J G, Swahum Gandhi, Venu Anand, and Aswathi R Nair, "Light Sensing Artificial Synapse Based on Zinc Oxynitride for Neuromorphic Applications", IEEE Sensors Letters, vol.8, no.5, May 2024. https://doi.org/10.1109/LSENS.2024.3391837
• Anjana J G, Kiran Jose, Aswathi R Nair, and Venu Anand, "DC reactive sputtering of ZnON thin films: band gap engineering and associated evolution of microstructures", Materials Research Express, vol.11, p.016403, Jan 2024. https://doi.org/10.1088/2053-1591/ad1e0f
• Anjana J. G., Venu Anand, and Aswathi R Nair, "Surface potential based modeling of zinc oxy-nitride thin film transistors", Flexible and Printed Electronics, vol.7, p.035004, July 2022. https://doi.org/10.1088/2058-8585/ac792a
• Sanil Daniel, Aswathi R. Nair, and Sanjiv Sambandan, "Test System for Thin Film Transistor Parameter Extraction in Active Matrix Backplanes", IEEE Journal of Electron Devices Society, vol.7, pp.638-644, June 2019. https://doi.org/10.1109/JEDS.2019.2922000
• Prasenjit Bhattacharya*, Aswathi R. Nair*, and Sanjiv Sambandan, "Geometric influence of cylindrical surface curvature on the electrostatics of thin film transistors", Flexible and Printed Electronics, vol.3, p.045006, Dec 2018. https://doi.org/10.1088/2058-8585/aaf2bf *Equal author contribution.
• Venu Anand, Aswathi Nair, Anbuselvan Karur Karunapathy Nagendirakumar, and Mohan Rao Gowravaram, “Estimating the number density and energy distribution of electrons in a cold atmospheric plasma using optical emission spectroscopy,” Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, vol.36, no 4, p.04F407, July 2018.  https://doi.org/10.1116/1.5023107
• Aswathi Nair, Prasenjit Bhattacharya, and Sanjiv Sambandan, “Modulating Thin Film Transistor Characteristics by Texturing the Gate Metal”, Scientific Reports, vol.7, p.17932, Dec 2017. https://doi.org/10.1038/s41598-017-18111-5
• Venu Anand, Aswathi R. Nair, S. A. Shivashankar, and G. Mohan Rao, “Atmospheric pressure plasma chemical vapor deposition reactor for 100 mm wafers, optimized for minimum contamination at low gas flow rates,” Applied Physics Letters, vol.107, no.9, p.094103, Aug 2015. http://dx.doi.org/10.1063/1.4929781
• Aswathi Nair, Karthik Raghunandan, Vaddi Yaswant, Sreelal S. Pillai, and Sanjiv Sambandan, “Maze solving automatons for self-healing of open interconnects: Modular add-on for circuit boards”, Applied Physics Letters, vol.106, p.123103, Mar 2015. http://dx.doi.org/10.1063/1.4916513
• R Mahidhar, K Prakash, Aswathi R Nair, M V N Prasad, and Sanjiv Sambandan, “Vibration spectrum analyzer using stretched membranes of polymer piezoelectrics for sensor networks”, Measurement Science and Technology, vol.24, p.055108, Apr 2013. http://dx.doi.org/10.1088/0957-0233/24/5/055108

 

Conference Publications

• Efraem Joji, Arjun Krishna K K, Yathul P Deep, Jithin Raj J S, Nitin S, Sunitha K, and Aswathi R Nair, “Power Converter topology combining Voltage Stabilizer and Inverter/UPS using a Single Transformer” 2025 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT), Bengaluru, India, July 2025. http://dx.doi.org/10.1109/CONECCT65861.2025.11306658
• Preeti Sakharam Lokhande, Roshni Oommen and Aswathi R. Nair, "Investigation of Bending Performance of Flexible Optoelectronic Synapse Based on ZnO," 2024 IEEE Region 10 Conference (TENCON), Singapore, Dec 2024. http://dx.doi.org/10.1109/TENCON61640.2024.10902752
• Dinesh Sai Ganapathi Mavuri, Roshni Oommen and Aswathi R. Nair, "Influence of Synaptic Device Properties on the Performance of Artificial Neural Networks," 2024 28th International Symposium on VLSI Design and Test (VDAT), Vellore, India, 2024, pp. 1-5. http://dx.doi.org/10.1109/VDAT63601.2024
•  Roshni Oommen and Aswathi R. Nair, "Performance comparison of ZnO and ZnON based optoelectronic synapses," 2024 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT), Bangalore, India, 2024, pp. 1-6. http://dx.doi.org/10.1109/CONECCT62155.2024.10677191
•  Aswathi R. Nair, and Sanjiv Sambandan, "Metal Patterning via Arc Etching for Thin Film Electronics", 2022 IEEE International Conference on Flexible \& Printable Sensors \& Systems (FLEPS 2022), Vienna, Austria, 10-13 July 2022. http://dx.doi.org/10.1109/FLEPS53764.2022.9781523
• Anjana, J.G., Aswathi R. Nair, and Venu Anand, "A photo conductivity simulation of ZnON TFT using ATLAS TCAD", In 2022 Third International Conference on Intelligent Computing, Instrumentation and Control Technologies (ICICICT), Kannur, India, 11-12 Aug 2022.http://dx.doi.org/10.1109/ICICICT54557.2022.9917832
• Aswathi R. Nair, Venu Anand and Sanjiv Sambandan, “Bias stress induced threshold voltage shift in buckled thin film transistors,” In 2019 IEEE Region 10 Conference (TENCON 2019), pp.78-81, 17-20 Oct. 2019. https://doi.org/10.1109/TENCON.2019.8929275               
• Sanil Daniel, Aswathi Nair, and Sanjiv Sambandan, “Characterization system for Large Area Electronic Systems,” In 2018 3rd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT), pp.1824-1828, 18-19 May 2018. https://doi.org/10.1109/RTEICT42901.2018.9012570

Principles and design of MEMS

Solid state devices

Advanced Semiconductor Device Modeling

Analog Integrated Circuit Design