Excitation energy migration processes in cyclic porphyrin arrays probed by single molecule spectroscopy

Jaesung Yang, Mira Park, Seok Yoon Zin, Takaaki Hori, Xiaobin Peng, Naoki Aratani, Peter Dedecker, Jun Ichi Hotta, Hiroshi Uji-i, Michel Sliwa, Johan Hofkens, Atsuhiro Osuka, Dongho Kim

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

By using single molecule fluorescence spectroscopy we have investigated the excitation energy migration processes occurring in a series of cyclic porphyrin arrays bearing a close proximity in overall architectures to the LH2 complexes in purple bacterial photosynthetic systems. We have revealed that the conformational heterogeneity induced by the structural flexibility in large cyclic porphyrin arrays, which provides the nonradiative deactivation channels as an energy sink or trap, reduces significantly the energy migration efficiency. Our study provides detailed information on the energy migration efficiency of the artificial light-harvesting arrays at the single molecule level, which will be a guideline for future applications in single molecular photonic devices in the solid state.

Original languageEnglish
Pages (from-to)1879-1884
Number of pages6
JournalJournal of the American Chemical Society
Volume130
Issue number6
DOIs
Publication statusPublished - 2008 Feb 13

Fingerprint

Excitation energy
Porphyrins
Bearings (structural)
Spectroscopy
Optics and Photonics
Photonic devices
Molecules
Fluorescence Spectrometry
Fluorescence spectroscopy
Guidelines
Light
Equipment and Supplies
Single Molecule Imaging

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Yang, Jaesung ; Park, Mira ; Zin, Seok Yoon ; Hori, Takaaki ; Peng, Xiaobin ; Aratani, Naoki ; Dedecker, Peter ; Hotta, Jun Ichi ; Uji-i, Hiroshi ; Sliwa, Michel ; Hofkens, Johan ; Osuka, Atsuhiro ; Kim, Dongho. / Excitation energy migration processes in cyclic porphyrin arrays probed by single molecule spectroscopy. In: Journal of the American Chemical Society. 2008 ; Vol. 130, No. 6. pp. 1879-1884.
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abstract = "By using single molecule fluorescence spectroscopy we have investigated the excitation energy migration processes occurring in a series of cyclic porphyrin arrays bearing a close proximity in overall architectures to the LH2 complexes in purple bacterial photosynthetic systems. We have revealed that the conformational heterogeneity induced by the structural flexibility in large cyclic porphyrin arrays, which provides the nonradiative deactivation channels as an energy sink or trap, reduces significantly the energy migration efficiency. Our study provides detailed information on the energy migration efficiency of the artificial light-harvesting arrays at the single molecule level, which will be a guideline for future applications in single molecular photonic devices in the solid state.",
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Yang, J, Park, M, Zin, SY, Hori, T, Peng, X, Aratani, N, Dedecker, P, Hotta, JI, Uji-i, H, Sliwa, M, Hofkens, J, Osuka, A & Kim, D 2008, 'Excitation energy migration processes in cyclic porphyrin arrays probed by single molecule spectroscopy', Journal of the American Chemical Society, vol. 130, no. 6, pp. 1879-1884. https://doi.org/10.1021/ja075701b

Excitation energy migration processes in cyclic porphyrin arrays probed by single molecule spectroscopy. / Yang, Jaesung; Park, Mira; Zin, Seok Yoon; Hori, Takaaki; Peng, Xiaobin; Aratani, Naoki; Dedecker, Peter; Hotta, Jun Ichi; Uji-i, Hiroshi; Sliwa, Michel; Hofkens, Johan; Osuka, Atsuhiro; Kim, Dongho.

In: Journal of the American Chemical Society, Vol. 130, No. 6, 13.02.2008, p. 1879-1884.

Research output: Contribution to journalArticle

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AU - Yang, Jaesung

AU - Park, Mira

AU - Zin, Seok Yoon

AU - Hori, Takaaki

AU - Peng, Xiaobin

AU - Aratani, Naoki

AU - Dedecker, Peter

AU - Hotta, Jun Ichi

AU - Uji-i, Hiroshi

AU - Sliwa, Michel

AU - Hofkens, Johan

AU - Osuka, Atsuhiro

AU - Kim, Dongho

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