Photoinduced Energy Transfer in ZnCdSeS Quantum Dot-Phthalocyanines Hybrids
Research output: Contribution to journal › Article › Scientific › peer-review
|Number of pages||10|
|Publication status||Published - 31 Aug 2018|
|Publication type||A1 Journal article-refereed|
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.