Research

Energy Materials and devices

Solar Photovoltaics: Organic, Perovskite and Tandem Materials and Solar Cells

In this area, our emphasis is to fabricate solar PV devices based on third generation materials to develop high efficiency and high life time devices. These devices are being made to improve their performance, low temperature processing and to reduce the use of toxic elements such as Lead.

Multiferroics, Ferroelectrics and Piezoelectrics

Here, we are studying the devices and materials based on oxides, such as ferroelectric and/or multiferroic oxides, piezoelectric materials as well as polymers such as P(VDF-TrFE) from the perspective of energy harvesting, piezoelectric activity, data storage applications, to name a few, Our work is related to engineering the material's structure and properties to achieve the desired functionality in stand-alone as well as device form and requires one to delve into understanding of materials, physics and some electrical engineering, particularly for device work.

Energy Harvesting Materials and Devices

In this area, we work on developing energy harvesting materials and devices to exploit piezoelectric and triboelectric energy available in the ambient to developed self powered devices important for several wearable electronics applications.

NetZero, Sustainability and Decarbonization

In this theme, we are investigating the issues related to NetZero and Carbon Neutrality, paradigms for sustainability and working our schemes for decarbonization for various sectors.

Lab Facilities

We have variety of equipments for fabrication and characterization of materials, thin films and devices. A partial list includes

Pulsed laser deposition and sputtering system
Chemical solution deposition system
Glove box enabled solution deposition and evaporation system for metals and organics
Impedance analyzer
I-V measurements for a variety of materials and solar cells
Quantum efficiency measurements for PV devices
Solar Simulator
Temperature dependent probe station
Ferroelectric, piezoelectric and magnetoelectric testing setups
Asylum scanning force microscope MFP-3D
Various other minor equipments such as electrometer, source meters etc
SQUID-VSM (Cryogenic)
Profilometer
Departmental/Institute facilities: High resolution XRD, Raman, FTIR, FESEM, DSC/TGA, XPS, Mechanical testing, polishing, sample preparation etc

Bulk of our solution processing is carried out in clean room of class 10,000 while devices are made in a class 100 clean room atmosphere or glove box.

Grants/Projects

Received grants more than 200 Crores as PI and Co-PI, details available on request
Raised funds over Rs 150 Cr at IITK for Kotak School of Sustainability, Chandrakanta Kesavan Center and other facilities

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