Study of Plasmon-Exciton Interactions in Metal-Semiconductor Nanoparticles

Abstract

We studied the properties of gold and CdTe/CdSe nanostructures using different characterization techniques. Coupling of plasmons in metal nanoparticles with exciton in semiconductor nanoparticles shows fascinating optical properties. Due to the interaction between a di-electric confined electronic state in metals and quantum confined electronic states in semiconductors shows clampdown of emission profile in gold nanospheres, gold nanorods with CdTe QDs. Also, we have done some preliminary study with CdSe QDs with gold nanospheres. Hence, the coupling of plasmon-exciton interaction leads to control of the energytransfer process. Also, we can tune the emission and absorption profiles which can have probable applications in light emitting diodes, photovoltaic systems, sensors, etc.