Key Achievement

Stark effects and charge separation in capped CdS quantum dots (QDs) embedded in a polymer film of PMMA.

Direct observation of field-induced changes in OLEDs, materials, e.g, in conjugated polymers, polyfluorene and poly(phenylene vinylene), PPV derivatives and metal complexes.

Electric field-induced enhancement/quenching of photoluminescence of p-conjugated polymer S3-PPV.

Ultrafast proton relay (within 200 ps) along molecular wire formed between 6-hydroxyquinoline and AcOH complex following photoexcitation.

Electric and magnetic field effects on OLEDs materials Tris(8-hydroxyquinoline) aluminium complex (Alq₃): Stark effects and fluorescence quenching.

Field-induced changes in optical transitions of capped CdS quantum dots (nanoparticles).

Examined changes in electric dipole moment and molecular polarizability associated with optical transitions following photoexcitation in several choromophores.

Proposed models for the excited state proton relay assisted by solvents molecules in hydroxyquinolines.

Controlled molecular motion/reorientation effects and Stark effects in hydroxyquinolines derivatives.

Proposed a model for the proton-transfer-reaction in photoexcited electronic states of hydroxyquinoline assisted by polymer chain.

Study of various quinoline derivatives with a view to their applications as an optical sensor, lasing materials and molecular wire.