Nanostructured Materials Research Laboratory
        Tiwari's Research Group

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Current  Research Projects

Spin Polarized Light Emitting Diodes (Spin LEDs) The project is focussed on developing and characterizing III-V quantum well-based Spin polarized light emitting diodes (Spin LED) that can emit circularly polarized light at room temperature. These LEDs will be useful for a number of applications including efficient light-coupling into fibers, optical isolation/selection based on polarization, and binocular vision for three-dimensional stereoscopic imaging. In addition to above, the display systems, based on Spin LED technology, will have much higher spatial resolution over current normal LED based display systems.
Tiwari,
Yang and StringFellow
Search for high temperature Ferromagnetic Dielectrics
This project is focused on the development of new types of Diluted Magnetic Dielectric (DMD) materials that have potential applications in Spintronics. Very recently we have succeeded in nventing a rare earth oxide-based diluted magnetic dielectric (DMD) system which exhibits high temperature ferromagnetism. Inspired by our preliminary success,  we are extending this work to explore the possibility of inducing ferromagnetism in other dielectric systems.
Tiwari and Liu
Understanding the Origin of ferromagnetism in ZnO- based DMS materials       This project is aimed to understand the fundamental mechanism responsible for ferromagnetism in ZnO-based DMS materials.  In order achieve this goal, extensive amount of experimental and theoretical studies are being under taken in our group. Tiwari,
Snure and Liu
All Oxide Magnetic Spin Valves and Tunnel Junctions
In this research project, we are investigating Transition Metal (TM)  Oxide-based magnetic multilayers to explore the potentiality of these materials for fabricating ultra-sensitive magnetic sensing devices.
Tiwari and
Paul
Transparent Conducting Oxides and Devices based-on
This project is focused on developing materials which are transparent and at the same time show good conductivity. These transparent conducting oxides (TCO) are considered as one of the most important materials system for modern optoelectronic devices such as, light emitting diodes (LED), solar cells, flat panel displays etc.
Tiwari
and
Snure
Organic Solar Cells and Other Alternate Sources of Energy
This project is focussed on developing an efficient and cost effective processing technique for producing large area Dye Sensitized Solar Cells.  These solar cells will be flexible, inexpensive and environment friendly. If successful, this project will play a very important role in transferring the recent scientific developments in the field of nanostructured DSSC technology to large scale industrial production.
Tiwari,
Snure,
Paul and
Toledo
Plasma Processing of Novel Superhard Materials
This project is focussed on developing a laser assited  plasma-based processing techiques for realize superhard and tough nanocomposite coatings for harsh-environment applications.
Tiwari and Chandran