Welcome to Applied Physics Laboratory, Department of Physics, IIT Bombay

Our experimental research group is interested in exploring new materials in nano-structure and nano-film forms for study and application in new age advanced sensors, Field effect transistors (FETs), Diodes, energy harvesting devices, tactile sensors array for electronic skin, self-powered sensors, and other piezoelectric sensors. The main aim is to reduce the cost of processing and fabrication by selecting suitable materials. Our group is working on high band-gap vertical well-aligned ZnO Nanorods which can be utilized in the development of biocompatible piezoelectric haptic sensors for new generation robotic applications. We are also working with organic semiconductor which are well known for their low cost processing techniques. To understand the physics of the devices, various simulations techniques are applied for the quantitative understanding of the devices and the materials. More precisely we are working on following areas:

• Nano-structure based haptics sensors, gas sensors: Study of charge carrier transport properties.

• Integration of artificial intelligence (AI) in various sensors: Analyzing sensor response with the help of AI, machine learning algorithms, and artificial neural networks.

• Organic/inorganic field effect transistor and diodes: High band gap semiconductors, organic semiconductors, charge carrier transport study, and effect of trap sites. Effect of molecular arrangement on charge carrier transport and traps.

• Device trap density measurement with the help of capacitance measurements.

• Energy generation and storage devices: Study the effect of molecular and atomic arrangement on the performance of energy storage devices.

• Piezoelectric sensors: Study various piezoelectric materials in thin films and nano-structured forms.