The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Tri-n-octylphosphine Oxide, is researched, Molecular C24H51OP, CAS is 78-50-2, about Fast Lifetime Blinking in Compact CdSe/CdS Core/Shell Quantum Dots, the main research direction is fast lifetime blinking compact CdSe CdS core shell QD.Application In Synthesis of Tri-n-octylphosphine Oxide.
Lifetime blinking is another type of fluorescence fluctuation in single colloidal quantum dots (QDs) apart from the extensively studied intensity blinking. It is a phenomenon of fluctuations in the fluorescence lifetime of a single QD over time while its fluorescence intensity is relatively unaffected. So far, lifetime blinking has only been reported in a few QD systems, such as “”giant”” (i.e., thick-shell) CdSe/CdS core/shell QDs. It remains unclear whether this phenomenon is universal among QDs. In this work, we use statistical methods to demonstrate that the lifetime blinking state, although short-lived, also exists in compact CdSe/CdS core/shell QDs in which nonradiative processes are efficient and lead to intensity blinking when activated. We propose that lifetime blinking happens when a neg. trion forms in the core of a QD after photoexcitation while nonradiative processes are not activated. However, the easy accessibility to efficient nonradiative processes results in the short durations of lifetime blinking events in this type of QDs.
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Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method