Photoluminescence Intermittency from Single Quantum Dots to Organic Molecules: Emerging Themes

International Journal of Molecular Sciences

Erin A. Riley¹  Chelsea M. Hess¹ 

[1] Department of Chemistry, University of Washington, Box 351700, Seattle, WA 98195, USA;

关键词: semiconducting nanocrystals;    single molecule spectroscopy;    power-law;    Auger recombination;    blinking;    biexciton;    multiexciton;    fluorescence;    proton transfer;    electron transfer;   

DOI  :  10.3390/ijms131012487

来源: mdpi

【 摘 要 】

Recent experimental and theoretical studies of photoluminescence intermittency (PI) or “blinking” exhibited by single core/shell quantum dots and single organic luminophores are reviewed. For quantum dots, a discussion of early models describing the origin of PI in these materials and recent challenges to these models are presented. For organic luminophores the role of electron transfer, proton transfer and other photophysical processes in PI are discussed. Finally, new experimental and data analysis methods are outlined that promise to be instrumental in future discoveries regarding the origin(s) of PI exhibited by single emitters.

【 授权许可】

CC BY   
© 2012 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.