Exploiting energy transfer in hybrid metal and semiconductor nanoparticle systems for biosensing and energy harvesting [Elektronische Ressource] / vorgelegt von Sergiy Mayilo

Sergiy MayiloExploiting Energy Transfer in HybridMetal and SemiconductorNanoparticle Systems for Biosensingand Energy HarvestingMunchen 2009Exploiting Energy Transfer in HybridMetal and SemiconductorNanoparticle Systems for Biosensingand Energy HarvestingDissertation an der Fakult at fur Physikder Ludwig-Maximilians-Universit at Munc henvorgelegt vonSergiy Mayiloaus Mykolayiv (Ukraine)Munc hen, im Mai 20091. Gutachter: Prof. Dr. Jochen Feldmann2. Gutachter: Prof. Dr. Joachim R adlerMundlic he Prufung am 19. Juni 2009Contents1 Introduction 172 Concepts and theoretical background 212.1 Energy transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.2 Interactions between dyes and gold nanoparticles . . . . . . . . . . . . . . . . 242.3 Antigen-antibody binding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312.4 Excitons in semiconductor nanocrystals . . . . . . . . . . . . . . . . . . . . . . 333 Materials and sample preparation 373.1 Fluorescence quenching biosensors . . . . . . . . . . . . . . . . . . . . . . . . . 373.2 Clusters of CdTe nanocrystals . . . . . . . . . . . . . . . . . . . . . . . . . . . 433.3 CdSe/ZnS/CdSe/ZnS nanocrystals . . . . . . . . . . . . . . . . . . . . . . . . 484 Experimental methods 514.1 Steady state absorption spectroscopy . . . . . . . . . . . . . . . . . . . . . . . 514.2 state photoluminescence spectroscopy . . . . . . . . . . . . . . . . . . . 524.