Effect of conformational heterogeneity on excitation energy transfer efficiency in directly meso - Meso linked Zn(II) porphyrin arrays

Tae Kyu Ahn; Zin Seok Yoon; In Wook Hwang; Jong Kuk Lim; Hanju Rhee; Taiha Joo; Eunji Sim; Seong Keun Kim; Naoki Aratani; Atsuhiro Osuka; Dongho Kim

doi:10.1021/jp050662g

Effect of conformational heterogeneity on excitation energy transfer efficiency in directly meso - Meso linked Zn(II) porphyrin arrays

Tae Kyu Ahn, Zin Seok Yoon, In Wook Hwang, Jong Kuk Lim, Hanju Rhee, Taiha Joo, Eunji Sim, Seong Keun Kim, Naoki Aratani, Atsuhiro Osuka, Dongho Kim

Department of Chemistry

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

36 Citations (Scopus)

Abstract

We have investigated the overall excitation energy relaxation dynamics in linear porphyrin arrays as well as the energy transport phenomena by attaching an energy acceptor to one end of a linear porphyrin array by using steady state and time-resolved spectroscopic measurements. We have revealed that the solvation dynamics as well as the conformational dynamics contributes significantly to the energy relaxation processes of linear porphyrin arrays. Consequently, long porphyrin arrays no longer serve as good energy transmission elements in donor - acceptor linked systems due to conformational heterogeneities which provide the nonradiative deactivation channels as energy quenchers.

Original language	English
Pages (from-to)	11223-11230
Number of pages	8
Journal	Journal of Physical Chemistry B
Volume	109
Issue number	22
DOIs	https://doi.org/10.1021/jp050662g
Publication status	Published - 2005 Jun 9

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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title = "Effect of conformational heterogeneity on excitation energy transfer efficiency in directly meso - Meso linked Zn(II) porphyrin arrays",

abstract = "We have investigated the overall excitation energy relaxation dynamics in linear porphyrin arrays as well as the energy transport phenomena by attaching an energy acceptor to one end of a linear porphyrin array by using steady state and time-resolved spectroscopic measurements. We have revealed that the solvation dynamics as well as the conformational dynamics contributes significantly to the energy relaxation processes of linear porphyrin arrays. Consequently, long porphyrin arrays no longer serve as good energy transmission elements in donor - acceptor linked systems due to conformational heterogeneities which provide the nonradiative deactivation channels as energy quenchers.",

author = "Ahn, {Tae Kyu} and Yoon, {Zin Seok} and Hwang, {In Wook} and Lim, {Jong Kuk} and Hanju Rhee and Taiha Joo and Eunji Sim and Kim, {Seong Keun} and Naoki Aratani and Atsuhiro Osuka and Dongho Kim",

year = "2005",

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doi = "10.1021/jp050662g",

language = "English",

volume = "109",

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T1 - Effect of conformational heterogeneity on excitation energy transfer efficiency in directly meso - Meso linked Zn(II) porphyrin arrays

AU - Ahn, Tae Kyu

AU - Yoon, Zin Seok

AU - Hwang, In Wook

AU - Lim, Jong Kuk

AU - Rhee, Hanju

AU - Joo, Taiha

AU - Sim, Eunji

AU - Kim, Seong Keun

AU - Aratani, Naoki

AU - Osuka, Atsuhiro

AU - Kim, Dongho

PY - 2005/6/9

Y1 - 2005/6/9

N2 - We have investigated the overall excitation energy relaxation dynamics in linear porphyrin arrays as well as the energy transport phenomena by attaching an energy acceptor to one end of a linear porphyrin array by using steady state and time-resolved spectroscopic measurements. We have revealed that the solvation dynamics as well as the conformational dynamics contributes significantly to the energy relaxation processes of linear porphyrin arrays. Consequently, long porphyrin arrays no longer serve as good energy transmission elements in donor - acceptor linked systems due to conformational heterogeneities which provide the nonradiative deactivation channels as energy quenchers.

AB - We have investigated the overall excitation energy relaxation dynamics in linear porphyrin arrays as well as the energy transport phenomena by attaching an energy acceptor to one end of a linear porphyrin array by using steady state and time-resolved spectroscopic measurements. We have revealed that the solvation dynamics as well as the conformational dynamics contributes significantly to the energy relaxation processes of linear porphyrin arrays. Consequently, long porphyrin arrays no longer serve as good energy transmission elements in donor - acceptor linked systems due to conformational heterogeneities which provide the nonradiative deactivation channels as energy quenchers.

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JF - Journal of Physical Chemistry B

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ER -

Effect of conformational heterogeneity on excitation energy transfer efficiency in directly meso - Meso linked Zn(II) porphyrin arrays

Abstract

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