TY - JOUR
T1 - Photodriven charge separation and transport in self-assembled zinc tetrabenzotetraphenylporphyrin and perylenediimide charge conduits
AU - Roznyatovskiy, Vladimir V.
AU - Carmieli, Raanan
AU - Dyar, Scott M.
AU - Brown, Kristen E.
AU - Wasielewski, Michael R.
PY - 2014/3/24
Y1 - 2014/3/24
N2 - 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.
AB - 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.
KW - charge separation
KW - charge transport
KW - donor-acceptor systems
KW - organic photovoltaics
KW - radical pairs
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U2 - 10.1002/anie.201309335
DO - 10.1002/anie.201309335
M3 - Article
C2 - 24554617
AN - SCOPUS:84896478959
VL - 53
SP - 3457
EP - 3461
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 13
ER -