Amit Tewari

As a highly accomplished Sr. Postdoctoral Research Fellow, my interdisciplinary background in Physics, Materials Science and Engineering, and Electrical Engineering provides a unique foundation for my work. With a Ph.D. in Materials Science and Engineering from IIT Bombay and Monash University and 7+ years of expertise in advanced thin film deposition and process engineering for semiconductor logic and memory devices. Proven innovator in cutting-edge Atomic Layer Deposition (ALD) techniques, cleanroom micro/nanofabrication, and comprehensive material/electrical characterization. I am skilled in leading research projects, fostering international collaborations, and translating complex scientific concepts into tangible real-world applications driving advancements in 2D materials, transistors, sensors, memory devices, and wearable medical technologies.. Seeking to leverage deep technical knowledge and hands-on laboratory experience to drive next-generation process development. 

Co-Instructor for the Course on Semiconductor Device Physics (spring 2023, 2024, 2025)

Advanced ALD Processes: I specialize in developing atomic layer deposition (ALD) techniques for high-k dielectric materials, enabling next-generation transistors and memory devices.

Micro/Nanofabrication: With hands-on experience in cleanroom environments, I design and fabricate devices using photolithography, etching, multilayer deposition, and patterning for applications in transistors, OLEDs, and photovoltaic devices.

Bioelectronics & Wearables: I develop lab-on-chip bioelectronic sensors using electrochemical transistors and create flexible, microfluidic-based wearable medical devices for health monitoring.

Here, I have been assigned to three different projects, i.e.,

Project 1: 
High-resolution, Printing-Based Patterning and PHOTOnic SINTERing for High-Speed, Low-Voltage Metal-Oxide Thin Film Transistors (HI-PHOTO-SINTER)  https://www.tuni.fi/en/research/high-resolution-printing-based-patterning-and-photonic-sintering-high-speed-low-voltage 

Project 2: 
Sustainable Organics and metal oxide ICT via biodegradable, high-performance flexible Low-voltage electronics (SOIL) https://www.tuni.fi/en/research/sustainable-organics-and-metal-oxide-ict-biodegradable-high-performance-flexible-low 

Project 3: 
Intellisense cust. 

Collaborators: 
Faculty of Information Technology and Communications (Tampere University, Finland)
Department of Electrical and Computer Engineering (Ohio State University, USA) 
VTT Technical Research Centre (Finland)

2D materials, Transistors (MOSFETs, OFET, EGOFETs, OECT), sensors (Physiological, Chemical and Bioelectronics), High-k dielectric materials, Ferroelectric Materials, and memory devices (MIM, MIS, MFM, MISM).

1. Amit Tewari, Srinivas Gandla, Anil Reddy Pininti, K Karuppasamy, Siva Böhm, Arup R Bhattacharyya, Christopher R McNeill, Dipti Gupta, “High-mobility and low-operating voltage organic thin film transistor with epoxy-based siloxane binder as the gate dielectric”. Applied Physics Letter, 103302 (1-4), 107 (2015)

2. Amit Tewari, Siva Bohm, Srinivas Gandla, Christopher R McNeill, Dipti Gupta, “Graphene-MWNTs composite coatings with enhanced electrical conductivity”. FlatChem, 33- 41, 4, 2017

3. Amit Tewari, Srinivas Gandla, Siva Bohm, Christopher R. McNeill, Dipti Gupta “Highly exfoliated MWNT-rGOA ink wrapped Polyurethane foam for Piezoresistive pressure sensor applications” ACS Appl. Mater. Interfaces, 5185–5195, 10, 2018

4. Amit Tewari, Srinivas Gandla, Siva Bohm, Christopher R. McNeill, Dipti Gupta, “Rapid Dip-Dry MWNT-rGO Ink Wrapped Polyester Elastic Band (PEB) For Piezoresistive Strain Sensor Applications” Applied Physics Letter, 084101 (1–5), 113 (2018)

5. Amit Tewari, Srinivas Gandla, Siva Bohm, Christopher R. McNeill, Dipti Gupta, “Remarkable Wettability of Highly Dispersive rGO Ink on Multiple Substrates Independent of Deposition Techniques”. FlatChem, 100-110, 16, 2019

6. Jae-seok Yoon*, Amit Tewari*, Changhwan Shin, Senior Member IEEE, Sanghun Jeon, Senior Member IEEE, “Influence of High Pressure Annealing on Memory Properties of Hf0.5Zr0.5O2 Based 1T-FeRAM”. IEEE Electron Device Letters, 1076-1079, 40 (2019).  (J.Y. and A.T. contributed equally to this work)

7. Amit Tewari, Hugo Huerta, Gary Chinga Carrasco, Samuli Ranta, Ronald Österbacka, Martti Toivakka, “Low-Cost Biodegrable Dielectric Sheets for Large-Area Floor Sensing Applications”. Flexible and Printed Electronics, 7 (2022) 045005

8. Amit Tewari, Kim Björkström, Amir Mohammad Ghafari, Eleonora Macchia, Luisa Torsi, Ronald Österbacka, “Stability of thiol-based self-assembled monolayer functionalized electrodes in EG-OFET-based applications”. FlatChem, 42 (2023) 100553

9. Eleonora Macchia*, Kim Björkström*, Amit Tewari*, Ville Eskonen, Axel Luukkonen, Amir Mohammad Ghafari, Lucia Sarcina, Mariapia Caputo, Natalia Tong-Ochoa, Kari Kopra, Fredrik Pettersson, Zahra Gounani, Luisa Torsi, Harri Härmä, Ronald Österbacka, “Label-free electronic detection of peptide post-translational modification with functional enzyme-driven assay at the physical limit”. Cell Reports Physical Science 5, 101874, 2024. (EM, KB, and AT contributed equally to this work)

10. Amit Tewari*, Antti TukiainenMatti Mäntysalo, Paul R. Berger, “Direct PEALD Deposition of a HfO2 Gate Dielectric without the Passivation for TFTs on Rigid and Flexible Substrates”. ACS Applied Electronics Materials, 7, 7120−7130, 2025