Photodriven electron transport within the columnar perylenediimide nanostructures self-assembled with sulfonated porphyrins in water

Mustafa Supur; Shunichi Fukuzumi

doi:10.1021/jp308549w

Photodriven electron transport within the columnar perylenediimide nanostructures self-assembled with sulfonated porphyrins in water

Mustafa Supur, Shunichi Fukuzumi

Department of Chemistry & Nanoscience

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

37 Scopus citations

Abstract

Columnar stacks of N,N'-di(2-(trimethylammoniumiodide)ethylene) perylenediimide (TAIPDI) _n can host meso-tetrakis(4-sulfonatophenyl) porphyrin zinc tetrapotassium salt (ZnTPPSK ₄) molecules at different ratios through the ionic and π-π interactions prompted by an aqueous environment. Photoexcitation of this host-guest complex generates very fast charge separation (1.4 × 10 ¹² s ^-1). Charge recombination is markedly decelerated by a probable electron delocalization mechanism along the long-range of tightly stacked TAIPDIs (4.6 × 10 ⁸ s ^-1), giving an exceptional k _CS/k _CR ratio of 3000 as determined by using time-resolved transient absorption techniques.

Original language	English
Pages (from-to)	23274-23282
Number of pages	9
Journal	Journal of Physical Chemistry C
Volume	116
Issue number	44
DOIs	https://doi.org/10.1021/jp308549w
State	Published - 8 Nov 2012

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title = "Photodriven electron transport within the columnar perylenediimide nanostructures self-assembled with sulfonated porphyrins in water",

abstract = "Columnar stacks of N,N'-di(2-(trimethylammoniumiodide)ethylene) perylenediimide (TAIPDI) n can host meso-tetrakis(4-sulfonatophenyl) porphyrin zinc tetrapotassium salt (ZnTPPSK 4) molecules at different ratios through the ionic and π-π interactions prompted by an aqueous environment. Photoexcitation of this host-guest complex generates very fast charge separation (1.4 × 10 12 s -1). Charge recombination is markedly decelerated by a probable electron delocalization mechanism along the long-range of tightly stacked TAIPDIs (4.6 × 10 8 s -1), giving an exceptional k CS/k CR ratio of 3000 as determined by using time-resolved transient absorption techniques.",

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AU - Fukuzumi, Shunichi

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Y1 - 2012/11/8

N2 - Columnar stacks of N,N'-di(2-(trimethylammoniumiodide)ethylene) perylenediimide (TAIPDI) n can host meso-tetrakis(4-sulfonatophenyl) porphyrin zinc tetrapotassium salt (ZnTPPSK 4) molecules at different ratios through the ionic and π-π interactions prompted by an aqueous environment. Photoexcitation of this host-guest complex generates very fast charge separation (1.4 × 10 12 s -1). Charge recombination is markedly decelerated by a probable electron delocalization mechanism along the long-range of tightly stacked TAIPDIs (4.6 × 10 8 s -1), giving an exceptional k CS/k CR ratio of 3000 as determined by using time-resolved transient absorption techniques.

AB - Columnar stacks of N,N'-di(2-(trimethylammoniumiodide)ethylene) perylenediimide (TAIPDI) n can host meso-tetrakis(4-sulfonatophenyl) porphyrin zinc tetrapotassium salt (ZnTPPSK 4) molecules at different ratios through the ionic and π-π interactions prompted by an aqueous environment. Photoexcitation of this host-guest complex generates very fast charge separation (1.4 × 10 12 s -1). Charge recombination is markedly decelerated by a probable electron delocalization mechanism along the long-range of tightly stacked TAIPDIs (4.6 × 10 8 s -1), giving an exceptional k CS/k CR ratio of 3000 as determined by using time-resolved transient absorption techniques.

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JO - Journal of Physical Chemistry C

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ER -

Photodriven electron transport within the columnar perylenediimide nanostructures self-assembled with sulfonated porphyrins in water

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