Photoinduced Energy Transfer in ZnCdSeS Quantum Dot-Phthalocyanines Hybrids

Sadananda Mandal; Miguel Garcia Iglesias; Mine Ince; Tomás Torres; Nikolai V. Tkachenko

doi:10.1021/acsomega.8b01623

Photoinduced Energy Transfer in ZnCdSeS Quantum Dot-Phthalocyanines Hybrids

Sadananda Mandal, Miguel Garcia Iglesias, Mine Ince, Tomás Torres, Nikolai V. Tkachenko

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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.

Original language	English
Pages (from-to)	10048-10057
Number of pages	10
Journal	ACS Omega
Volume	3
Issue number	8
DOIs	https://doi.org/10.1021/acsomega.8b01623
Publication status	Published - 31 Aug 2018
Publication type	A1 Journal article-refereed

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Publication forum level 1

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1021/acsomega.8b01623Licence: Other

acsomega.8b01623
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http://urn.fi/URN:NBN:fi:tty-201810012343

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title = "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 F{\"o}rster theory, which shows roughly 1 nm discrepancy in the energy transfer distance estimation, or one order in magnitude discrepancy in the transfer rate constants.",

author = "Sadananda Mandal and \{Garcia Iglesias\}, Miguel and Mine Ince and Tom{\'a}s Torres and Tkachenko, \{Nikolai V.\}",

year = "2018",

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doi = "10.1021/acsomega.8b01623",

language = "English",

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AU - Mandal, Sadananda

AU - Garcia Iglesias, Miguel

AU - Ince, Mine

AU - Torres, Tomás

AU - Tkachenko, Nikolai V.

PY - 2018/8/31

Y1 - 2018/8/31

N2 - 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.

AB - 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.

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DO - 10.1021/acsomega.8b01623

M3 - Article

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JO - ACS Omega

JF - ACS Omega

IS - 8

ER -

Photoinduced Energy Transfer in ZnCdSeS Quantum Dot-Phthalocyanines Hybrids

Abstract

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