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Photoinduced Energy Transfer in ZnCdSeS Quantum Dot-Phthalocyanines Hybrids.


ABSTRACT: In this article, interaction between ZnCdSeS quantum dot (QD) and phthalocyanines with variable linker has been reported. Steady-state and time-resolved spectroscopic investigation reveals that only photoinduced energy transfer occurs from QD to phthalocyanines. To evaluate quantitatively the energy transfer, the Poisson statistics of QD-dye complex formation was used in the analysis of steady-state and time-resolved emission quenching, which allows to estimate the energy transfer rate constant for an ideal one-to-one complex. The measured rate constants are compared to the rates evaluated based on the classic Förster theory, which shows roughly 1 nm discrepancy in the energy transfer distance estimation, or one order in magnitude discrepancy in the transfer rate constants.

SUBMITTER: Mandal S 

PROVIDER: S-EPMC6644917 | biostudies-literature |

REPOSITORIES: biostudies-literature

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