Areas of Research- Photonic Materials

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Research Guide: Dr. P R Biju
Research Areas :

• Display device materials
• Laser Spectroscopy
• Photonics & Nonlinear optics Glassy materials

The activities in this field include synthesis and characterization of selected phosphors for display applications.  Two types of systems have so far been investigated.  In the first class, Ferroelectric Strontium Barium Niobate fine ceramic systems doped with different rare-earth ions were prepared and investigated for their structural and optical properties. We are also successful in sol-gel synthesis of different compositions of these materials in the nano regime.  The other group of phosphor material investigated belongs to Sr 2 CeO 4 , a recently reported blue phosphor by the combinatorial materials synthesis technique.

Currently, we are investigating the effect of different rare-earth ions on the structural and optical properties of this interesting group of materials.  These materials have been prepared in the nano regime using sol-gel synthesis using different chemical routes. The thin film preparation and characterization of these systems are in progress. The group has also synthesized Cd x Zn 1-x S quantum dot alloys through chemical method and investigated the luminescent and optical limiting properties.

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