Dynamics of spin relaxation in magnetic nanocrystals

Dynamics of spin-lattice relaxation in colloidal magnetic nanocrystals (MxFe3-xO4) are studied using pump-probe Faraday rotation measurements. In this project, we are interested in how the rate of energy relaxation from electron spin to the lattice degrees of freedom is affected by the chemical and lattice structure of the nanocrystal and surroudning environment.

 

Energy transfer dynamics in doped quantum dots

The dynamics of energy transfer from exciton to the local ligand field state of the doped transition metal ions in semiconductor host matrix is studied via static and time-resolved spectroscopic techniques. The correlation between the structural parameters influencing the donor-acceptor wavefunction overlap and the rate of energy transfer is studied.

 

Plasmon-enhanced energy transfer in doped quantum dots and hot-electron photocatalysis

Enhancement of energy transfer process in Mn-doped quantum dots by plasmon and its application in photocatalysis is investigated.