In a day, when you don't come across any problems-you can be sure that you are travelling in a wrong path
~ Swami Vivekananda
Our team focuses on different solution processed thin film deposition for various applications like electronics/optoelectronics, energy and health. We primarily concentrate on sol-gel derived ion-conducting metal oxide, metal oxide semiconductors and various nanostructured materials for thin film deposition. Ion-conducting oxide thin film has mobile light atoms like Li+, Na+, K+ which can move easily through the solid thin film. This kind of ionic thin film has very high areal capacitance which can be suitable for fabricating low operating voltage thin film transistors (TFTs). Besides, light atoms of ionic oxide can be exchanged easily with other ions like Ag+, Au+, Cu+, which allow us to grow different metal and metal chalcogenide nanocrystal inside oxide materials. These metal /metal oxide or metal chalcogenide /metal oxide thin film has various applications for optoelectronics devices and energy generation. Besides, we grow different nanocrystal by microwave assisted synthesis, hot-injection and hydrothermal process for thin film device application.
The basic objective of our present work is to fabricate the cost-effective ion conducting dielectric based high-performance, low operating voltage thin film transistor (TFT). Their coherent interface formation with solution-processed oxide semiconductors lead to considerable improvements in TFT performance and make it possible to all solution processed and printable TFT fabrication.
Our group is developing the piezo-potential self-biased thin film transistor technology for mechanical energy harvesting applications. The major goal of this endeavor is to create a portable gadget that can sense and store mechanical energy produced by human body activity or different natural vibration.
Our group is synthesizing the QDs by microwave & hot injection synthesis and by using those QDs we are fabricating photoconductors and photodiodes.
Our work focus on inorganic ,solution process, low cost fabrication of memory devices and towards its implementation into synaptic applications. Besides we are also working on interface based organic memory devices.
Our primary objective is to create transparent conducting thin films made of inorganic low cost solution process for use in a variety of applications.
Our work is to fabricate a LET by using emissive layer with the help of electron transport layer and Hole transport layer.
Current research team
Dr. Sonali Tomar has joined our group as National Post-Doctoral Fellow in 2025-26 session.
Congratulations to our guide Dr. Bhola Nath Pal on his promotion for the post of Professor.
Our paper titled "Fabrication of Schottky Barrier Oxide Transistors to Reduce Subthreshold Swing Close to the Theoretical Limits" has been published in Advanced Materials Technologies.
Our paper titled "Ionic and Metallic Ag-Doped Oxide Nanocomposites for High-Performance Memristors" has been published in ACS Applied Nano Materials.
Our paper titled "Synthesis of ZnO Quantum Dots and Their Applications in UV-Sensitive Low-Voltage Phototransistors " has been published in ACS Applied Nano Materials.
For winning best poster award at ICFPAM, 2024 held at IISER Berhampur
2025
Emulating synaptic plasticity in a solution processed Ag-metalized oxide memristor for high-accuracy neuromorphic computing
S Pramanik, R Chakraborty, S Hazra, S Dahiya, S Jana, B Satpati, BN Pal
Materials Today Nano, 100699
2025
Optically/Electrically Controlled Ag+ Metallization in Solution-Processed Oxide Memtransistors for Neuromorphic Computing
R Chakraborty, H Singodia, S Pramanik, AK Yadav, U Pandey, R Ghosh, ...
Nanoscale
2025
Low Operating Voltage Metal‐Oxide Thin‐Film Transistor for Portable Physiological Temperature Sensing
R Chakraborty, C Singh, S Pramanik, PP Maurya, S Hazra, HS Chauhan, ...
Advanced Materials Technologies, e01636