Faculty
Dr. Sujaya Kumar Vishwanath
Assistant Professor
Alliance School of Sciences
Dr. Sujaya Kumar Vishwanath is an Assistant Professor in the School of Sciences at Alliance University. He obtained his Ph.D. in Advanced Materials Engineering from Kongju National University, South Korea, where his research focused on polymer-assisted solution processing of doped indium oxide thin films for high-mobility transparent electronics and resistive switching devices.
He previously served as a DST Inspire Faculty Fellow at the Centre for Nanoscale Science and Engineering (CeNSE), Indian Institute of Science, Bengaluru, and as a Research Fellow at the University of Southampton, UK, working on optical memristors for neuromorphic computing. Earlier, he held research positions at Nanyang Technological University (Singapore), KAIST, and Korea University (South Korea).
Dr. Vishwanath’s research lies at the intersection of neuromorphic computing, sustainable optoelectronics, and printed nanoelectronics. He pioneered the Polymer-Assisted Solution (PAS) Process for fabricating high-quality metal-oxide thin films compatible with low-cost and green manufacturing. His current work focuses on lead-free halide-perovskite memristors, oxide transistors, and retinomorphic vision systems for in-sensor computing, hardware security, and energy-efficient artificial-intelligence hardware.
He has secured competitive research funding, including ?35 lakhs as Principal Investigator (DST Inspire Faculty Grant) and ?90 lakhs as Co-Principal Investigator (MoE-STARS India Project), supporting the development of ionic–electronic semiconductor systems for neuromorphic computing. Dr. Vishwanath has authored over 28 peer-reviewed papers in leading journals such as Nature Communications, ACS Energy letters, and Materials Horizons.
Dr. Vishwanath maintains strong national collaborations with premier institutes such as IIT Kanpur, IIT Bombay, and IISc Bengaluru, and active international collaborations with KAIST (South Korea), Nanyang Technological University (Singapore), and the University of Southampton (UK).
- Sujaya Kumar Vishwanath, et. al. Lead-Free Cs3Bi2I9 Perovskite Memristors for Energy-Efficient Neuromorphic Computing. (Corresponding author): ACS Energy Letters., Accepted -2025. DOI: 1021/acsenergylett.5c00411.
- Sujaya Kumar Vishwanath, et. al. High-performance one-dimensional halide perovskite crossbar memristors and synapses for neuromorphic computing. Horiz. 2024, (Corresponding author). DOI: 10.1039/d3mh02055j. (Outstanding paper award runner up from RSC Mater. Horiz. 2024)
- R A John, Nimesh Shah, Sujaya Kumar Vishwanath, et. al, “Halide Perovskite Memristors as flexible and reconfigurable physical unclonable functions” Nature Communications 12, 1, 2021, 1-11., DOI: 10.1038/s41467-021-24057-0, (Equally Contributed).
- Sujaya Kumar Vishwanath, Hyunsuk Woo, Sanghun Jeon, Enhancement of resistive switching properties in Al2O3 bilayer-based atomic switches: multilevel resistive switching, Nanotechnology, 29, 23, 2018, DOI: 1088/1361-6528/aab6a3.
- Sujaya Kumar Vishwanath, Hyunsuk Woo, Sanghun Jeon. Effect of dysprosium and lutetium metal buffer layers on the resistive switching characteristics of Cu–Sn alloy-based conductive-bridge random access memory. Nanotechnology 29, 38, 2018, DOI: 10.1088/1361-6528/aacd35.
- Sujaya Kumar Vishwanath, Hyunsuk Woo, Sanghun Jeon. Non-volatile resistive switching in CuBi-based conductive bridge random access memory device, Applied Physics Letters 112, 25, 2018, 253503, DOI: 1063/1.5030765.
- Sujaya Kumar Vishwanath, Taekyu An, Won-Yong Jin, Jae-Wook Kang, Jihoon Kim, The optoelectronic properties of tungsten-doped indium oxide thin films prepared by polymer-assisted solution processing for use in organic solar cells, Journal of Materials Chemistry C 5,39, 2017,10295-10301., DOI:10.1039/C7TC03662K.
- Sujaya Kumar Vishwanath, Sanghun Jeon, Jihoon Kim, Polymer- assisted solution processing of TiO2 thin films for resistive-switching random access memory, Journal of The Electrochemical Society 164, 2, 2017, H21., DOI: 10.1149/2.0121702jes .
- Sujaya Kumar Vishwanath, Kuk Young Cho, Jihoon Kim, Polymer- assisted solution processing of Mo-doped indium oxide thin films: high- mobility and carrier-scattering mechanisms, Journal of Physics D: Applied Physics 49, 15, 2016, 155501., DOI: 10.1088/0022- 3727/49/15/155501.
- Sujaya Kumar Vishwanath, Jihoon Kim, Resistive switching characteristics of all- solution-based Ag/TiO2/Mo-doped In2O3 devices for non-volatile memory applications, Journal of Materials Chemistry C 4, 46,2016, 10967-10972., DOI: 10.1039/C6TC03607D.
- Flexible Low-Dimensional Halide Perovskite Memristors for Neuromorphic Computing, IOP Memristor 2024, London (Invited).
- Phenethylammonium Bismuth Iodide Memristors for In-Sensor Reservoir Computing, ICLED 2024, Singapore (Invited).
- Low-Dimensional Halide Perovskites for Neuromorphic Computing, BK21 Summer School, Kongju National University (Invited).
- Solution-Processed Memristors for Neuromorphic Computing, IEEE Summer School on Nanotechnology 2022, Hyderabad (Invited).
Research Interests
- Neuromorphic and in-sensor computing
- Solution-processed ferroelectric and perovskite materials
- Retinomorphic and optoelectronic neuromorphic systems
- Sustainable and transparent oxide electronics
Education
- D., Advanced Materials Engineering, Kongju National University, South Korea
- Sc., Physics, Sri Venkateswara University, Tirupati, India
- Sc., Physics (Chemistry & Mathematics), Sri Venkateswara University, Tirupati, India
