SB Krupanidhi Home Page

Quantum Structures & Devices Lab

MATERIALS RESEARCH CENTRE
Indian Institute of Science, Bangalore
Loading

Research Interests


Multi-component oxide based materials

Epitaxial, polycrystalline and recently, amorphous oxide based thin films and nanostructures have found their applications in various segments of electronic industry.

The continuing miniaturization of electronic devices for computation and memory has forced the scientific community to explore new materials and device concepts rather than making things smaller anymore. Just as the transistor was the workhorse for the silicon technology, the memristor, based on a phenomenon known as resistive switching, could be the driving force for a new generation of neuromorphic computers. Resistive switching is exhibited by various classes of materials such as perovskites, manganites, layered materials, amorphous materials and so on. Understanding the mechanism at work in various materials such as amorphous and polycrystalline perovskites and elucidating how the processing conditions affect the device performance is very crucial for developing a new generation of memory and electronic devices.

Artificial superlattices of Perovskite ferroelectric and dielectrics  were developed for their use in tunable microwave devices.

Multiferroics, which posses ferroelectric as well as ferromagnetic order parameters are excellent candidates for applications in emerging spintronic-based memory devices. Studying the coupled dynamics of electrical and magnetic domains in artificial superlattices of multiferroics and dielectrics has been a major research theme of this group since beginning.

With increase in the advancements in field of microelectronics the demand for efficient and cheap energy sources has raised more than ever. Several  metal oxides have been  emerging as new materials in future energy storage devices such as Li-ion micro batteries.  Thin film batteries are one of the most important sources that power these rapidly growing micro-scale devices and integrating them into semiconductor technology.  Extensive research growing  in developing new materials with improved performance characteristics in relation to the currently used materials.  PLD  is ideal technique for development of new materials as well as to produce model systems for parametric studies due to its congruent ablation.  Systematic variation of material compositions by changing deposition conditions such as temperature, pressure and laser conditions is possible in PLD.  Recently, Our PLD  group has been successful in fabricated new oxide materials such as TiNb2O7 thin films as new anode materials in rechargeable Li-ion micro batteries.

With increase in the advancements in field of microelectronics the demand for efficient and cheap energy sources has raised more than ever. Several  metal oxides have been  emerging as new materials in future energy storage devices such as Li-ion micro batteries.  Thin film batteries are one of the most important sources that power these rapidly growing micro-scale devices and integrating them into semiconductor technology.  Extensive research growing  in developing new materials with improved performance characteristics in relation to the currently used materials.  PLD  is ideal technique for development of new materials as well as to produce model systems for parametric studies due to its congruent ablation.  Systematic variation of material compositions by changing deposition conditions such as temperature, pressure and laser conditions is possible in PLD.  Recently, Our PLD  group has been successful in fabricated new oxide materials such as TiNb2O7 thin films as new anode materials in rechargeable Li-ion micro batteries.