Photodriven charge separation and transport in self-assembled zinc tetrabenzotetraphenylporphyrin and perylenediimide charge conduits

Vladimir V. Roznyatovskiy; Raanan Carmieli; Scott M. Dyar; Kristen E. Brown; Michael R Wasielewski

doi:10.1002/anie.201309335

Photodriven charge separation and transport in self-assembled zinc tetrabenzotetraphenylporphyrin and perylenediimide charge conduits

Vladimir V. Roznyatovskiy, Raanan Carmieli, Scott M. Dyar, Kristen E. Brown, Michael R Wasielewski^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Zinc tetrabenzotetraphenyl porphyrin (ZnTBTPP) covalently attached to four perylenediimide (PDI) acceptors self-assembles into a π-stacked, segregated columnar structure, as indicated by small- and wide-angle X-ray scattering. Photoexcitation of ZnTBTPP rapidly produces a long-lived electron-hole pair having a 26 Å average separation distance, which is much longer than if the pair is confined within the covalent monomer. This implies that the charges are mobile within their respective segregated ZnTBTPP and PDI charge conduits. Zinc tetrabenzotetraphenylporphyrin (ZnTBTPP) covalently attached to four perylenediimide (PDI) acceptors self-assembles into a π-stacked, segregated columnar structure. Photoexcitation of ZnTBTPP rapidly produces a long-lived electron-hole pair with a 26 Å average separation distance, which is much longer than if the pair is confined within the covalent monomer. The charges are thus mobile within their respective segregated ZnTBTPP and PDI charge conduits.

Original language	English (US)
Pages (from-to)	3457-3461
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	53
Issue number	13
DOIs	https://doi.org/10.1002/anie.201309335
State	Published - Mar 24 2014

Keywords

charge separation
charge transport
donor-acceptor systems
organic photovoltaics
radical pairs

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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@article{fdfa36e5b1c549d2a4958a0eecc7ca66,

title = "Photodriven charge separation and transport in self-assembled zinc tetrabenzotetraphenylporphyrin and perylenediimide charge conduits",

abstract = "Zinc tetrabenzotetraphenyl porphyrin (ZnTBTPP) covalently attached to four perylenediimide (PDI) acceptors self-assembles into a π-stacked, segregated columnar structure, as indicated by small- and wide-angle X-ray scattering. Photoexcitation of ZnTBTPP rapidly produces a long-lived electron-hole pair having a 26 {\AA} average separation distance, which is much longer than if the pair is confined within the covalent monomer. This implies that the charges are mobile within their respective segregated ZnTBTPP and PDI charge conduits. Zinc tetrabenzotetraphenylporphyrin (ZnTBTPP) covalently attached to four perylenediimide (PDI) acceptors self-assembles into a π-stacked, segregated columnar structure. Photoexcitation of ZnTBTPP rapidly produces a long-lived electron-hole pair with a 26 {\AA} average separation distance, which is much longer than if the pair is confined within the covalent monomer. The charges are thus mobile within their respective segregated ZnTBTPP and PDI charge conduits.",

keywords = "charge separation, charge transport, donor-acceptor systems, organic photovoltaics, radical pairs",

author = "Roznyatovskiy, {Vladimir V.} and Raanan Carmieli and Dyar, {Scott M.} and Brown, {Kristen E.} and Wasielewski, {Michael R}",

year = "2014",

month = mar,

day = "24",

doi = "10.1002/anie.201309335",

language = "English (US)",

volume = "53",

pages = "3457--3461",

journal = "Angewandte Chemie - International Edition",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

number = "13",

}

Photodriven charge separation and transport in self-assembled zinc tetrabenzotetraphenylporphyrin and perylenediimide charge conduits. / Roznyatovskiy, Vladimir V.; Carmieli, Raanan; Dyar, Scott M.; Brown, Kristen E.; Wasielewski, Michael R.

In: Angewandte Chemie - International Edition, Vol. 53, No. 13, 24.03.2014, p. 3457-3461.

Research output: Contribution to journal › Article › peer-review

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AU - Roznyatovskiy, Vladimir V.

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AU - Brown, Kristen E.

AU - Wasielewski, Michael R

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