People

Professors

Matti Mäntysalo

Professor
Elektroniikka
Faculty of Information Technology and Communication Sciences
Tampere University
+358407576800
matti.mantysalo@tuni.fi

https://orcid.org/0000-0002-7780-6454

About me

I am a professor of electronics working to redefine the materials, fabrication methods, and form factors of electronic systems. My research explores how printed and additive technologies, novel thin‑film processes, and system integration can reshape how electronics are designed, manufactured, and used by reducing material consumption, energy use, and reliance on critical or harmful materials.

Rather than optimising individual components in isolation, my work focuses on rethinking electronics at the system level. By working closely with industry, I aim to ensure that new ideas move beyond the laboratory into scalable manufacturing and real electronic products, translating changes in mindset into practical and societal impact.

Sayani Majumdar

Associate Professor
Thin Film Electronics
Faculty of Information Technology and Communication Sciences
Tampere University
+358405946214
+358405946214
sayani.majumdar@tuni.fi

https://orcid.org/0000-0001-7779-3959

More information

About me

My core research interest is development of Neuromorphic Computing hardware for next generation of energy-efficient, intelligent and adaptive computing and sensing. More specifically, my team's research focus is Non-volatile Memories, synaptic weight elements and leaky-integrate and fire neuron components based on Back-end CMOS compatible Ferroelectric thin films and oxide or 2D semiconductor based heterostructures. My research experience and interest also includes Spintronic components like magnetic tunnel junctions and different other emerging solid state electronic devices including optoelectronic and flexible and wearable sensor components.

Responsibilities

Teaching Courses on Semiconductor Device Physics (spring 2024) and Future Computing Devices and Architecture (upcoming, Fall 2024) and Research on Beyond CMOS computing devices and systems.

Field of expertise

Micro and Nanoscale Solid-state Electronic Device design and fabrication; Characterization; Modelling; and Neuromorphic Computing.

Research topics

Neuromorphic Computing and Adaptive Sensing for Extreme Edge devices
Low-thermal budget ferroelectric memories
Atomic Layer Deposited (ALD) thin film devices

Research unit

Electrical Engineering

Research fields

Neuromorphic Computing hardware; Non-volatile memories; Sensing; Optoelectronics, Cryogenic Electronics for Quantum Computing

Research career

I did my Ph. D. from Indian Association for the Cultivation of Science in 2006 working on fundamental physics of complex oxide materials down to deep cryogenic temperatures.
As a post-doctoral fellow in Åbo Akademi University and University of Turku in Finland, I initiated and led research on hybrid spintronic components.
I was chosen a Junior Group Leader by Turku Collegium for Science and Medicine working on Spintronic Components between 2010-2013.
I worked as a visiting scientist in Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, USA in 2010 and 2011, working on magnetic tunnel junctions.
I was an Academy Research Fellow in Aalto University, Finland , with my key research focus on ferroelectric tunnel junction based memristors and their application as electronic synapses and neurons in neuromorphic computing.
As a senior scientist in VTT, my research portfolio was further diversified to include development of 2D semiconductor based memory and logic components based on ALD grown Hafnia based ferroelectric memory (FeFET, FeTFT) devices for energy-efficient hardware for neuromorphic computing.

Funding

Mission statement

Broadly, my team's research goal is Development of Neuromorphic Computing hardware based on low thermal budget and sustainable materials and processes. To achieve this goal, we work on different sub-topics ranging from materials, devices, modelling, design, high-end fabrication and system level integration.

Selected publications

Modelling Ferroelectric Hysteresis of HZO Capacitor with Jiles-Atherton Model for Non-Volatile Memory Applications, Ella Paasio, Mika Prunnila, Sayani Majumdar, IEEE 12th Non-Volatile Memory Systems and Applications Symposium (NVMSA), Niigata, Japan, pp.1, 2023. doi: 10.1109/NVMSA58981.2023.00019.
Back-end and Flexible Substrate Compatible Analog Ferroelectric Field Effect Transistors for Accurate Online Training in Deep Neural Network Accelerators, S Majumdar, I Zeimpekis, Advanced Intelligent Systems, 2300391 (2023).
Large-area synthesis of high electrical performance MoS2 by a commercially scalable atomic layer deposition process, N Aspiotis, K Morgan, B März, K Müller-Caspary, M Ebert, E Weatherby, S Majumdar, I Zeimpekis, npj 2D Materials and Applications 7 (1), 18 (2023).
An efficient deep neural network accelerator using controlled ferroelectric domain dynamics, S Majumdar, Neuromorphic Computing and Engineering 2 (4), 041001 (2022).
Back-End CMOS Compatible and Flexible Ferroelectric Memories for Neuromorphic Computing and Adaptive Sensing, S Majumdar, Advanced Intelligent Systems 4, 2100175 (2022).
Ultrafast Switching and Linear Conductance Modulation in Ferroelectric Tunnel Junctions via P (VDF-TrFE) Morphology Control, S Majumdar, Nanoscale 13, 11270-11278 (2021).
Tactile sensory coding and learning with bio-inspired optoelectronic spiking afferent nerves, H Tan, Q Tao, I Pande, S Majumdar, F Liu, Y Zhou, POÅ Persson, J Rosen, S van Dijken, Nature communications 11 (1), 1369 (2020).
Crossover from synaptic to neuronal functionalities through carrier concentration control in Nb-doped SrTiO3-based organic ferroelectric tunnel junctions, S Majumdar, H Tan, I Pande, S van Dijken, APL Materials 7, 091114 (2019).
Energy‐Efficient Organic Ferroelectric Tunnel Junction Memristors for Neuromorphic Computing, S Majumdar, H Tan, Q Qin, S van Dijken, Advanced Electronic Materials 5, 1800795 (2019).

Own links

Donald Lupo

External Expert
Faculty of Information Technology and Communication Sciences
Tampere University
donald.lupo@tuni.fi

Staff

Jari Keskinen

Staff Scientist
Faculty of Information Technology and Communication Sciences
Tampere University
+358503567543
jari.keskinen@tuni.fi

https://orcid.org/0000-0002-3144-972X

Tiina Koskinen

Laboratory Coordinator
Faculty of Information Technology and Communication Sciences
Tampere University
+358504128420
tiina.h.koskinen@tuni.fi

Hamed Pourkheirollah

Postdoctoral Research Fellow
Faculty of Information Technology and Communication Sciences
Tampere University
+358504784434
hamed.pourkheirollah@tuni.fi

https://orcid.org/0000-0002-8995-0349

More information

Research fields

Printed electronics, Printed supercapacitors, Flexible energy storage systems

Funding

Latest publications

Carboxylic-Acid Functionalized Multiwalled Carbon Nanotube-Alkane-Based Resistive Temperature Sensor for Cold Chain Applications

Behera, S. K., Marrec, P., Parola, A. J., Dionísio, M., Águas, H., Santos, A. F. M., Pourkheirollah, H., Lupo, D. & Laia, C. A. T., 12 toukok. 2026, (E-pub ahead of print) julkaisussa: Advanced Engineering Materials.