Photoinduced intramolecular electron transfer of carbazole trimer-[60]fullerene studied by laser flash photolysis techniques

Takashi Konno; Mohamed E. El-Khouly; Yosuke Nakamura; Keisuke Kinoshita; Yasuyuki Araki; Osamu Ito; Toshitada Yoshihara; Seiji Tobita; Jun Nishimura

doi:10.1021/jp076387a

Photoinduced intramolecular electron transfer of carbazole trimer-[60]fullerene studied by laser flash photolysis techniques

Takashi Konno, Mohamed E. El-Khouly, Yosuke Nakamura, Keisuke Kinoshita, Yasuyuki Araki, Osamu Ito, Toshitada Yoshihara, Seiji Tobita, Jun Nishimura

Division of Organic- and Biomaterials Research

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

12 Citations (Scopus)

Abstract

Photoinduced intramolecular events of newly synthesized bis(carbazole trimer)-C₆₀ adducts have been studied by laser flash photolysis techniques in polar and nonpolar solvents. For bis(tert-butyl-substituted carbazole trimer)-C₆₀ adduct, charge separation takes place via the excited singlet state of the C₆₀ moiety in polar solvents as revealed by the combination of the C₆₀-fluorescence quenching and transient absorptions of the radical ion pair. On the other hand, for bis(nonsubstituted carbazole trimer)-C₆₀ adduct, although charge separation takes place, the charge recombination is fast because of the lower electron-donor ability.

Original language	English
Pages (from-to)	1244-1249
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	112
Issue number	4
DOIs	https://doi.org/10.1021/jp076387a
Publication status	Published - 2008 Jan 31

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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Photoinduced intramolecular electron transfer of carbazole trimer-[60]fullerene studied by laser flash photolysis techniques. / Konno, Takashi; El-Khouly, Mohamed E.; Nakamura, Yosuke; Kinoshita, Keisuke; Araki, Yasuyuki; Ito, Osamu; Yoshihara, Toshitada; Tobita, Seiji; Nishimura, Jun.

In: Journal of Physical Chemistry C, Vol. 112, No. 4, 31.01.2008, p. 1244-1249.

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

Konno, Takashi ; El-Khouly, Mohamed E. ; Nakamura, Yosuke ; Kinoshita, Keisuke ; Araki, Yasuyuki ; Ito, Osamu ; Yoshihara, Toshitada ; Tobita, Seiji ; Nishimura, Jun. / Photoinduced intramolecular electron transfer of carbazole trimer-[60]fullerene studied by laser flash photolysis techniques. In: Journal of Physical Chemistry C. 2008 ; Vol. 112, No. 4. pp. 1244-1249.

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abstract = "Photoinduced intramolecular events of newly synthesized bis(carbazole trimer)-C60 adducts have been studied by laser flash photolysis techniques in polar and nonpolar solvents. For bis(tert-butyl-substituted carbazole trimer)-C60 adduct, charge separation takes place via the excited singlet state of the C60 moiety in polar solvents as revealed by the combination of the C60-fluorescence quenching and transient absorptions of the radical ion pair. On the other hand, for bis(nonsubstituted carbazole trimer)-C60 adduct, although charge separation takes place, the charge recombination is fast because of the lower electron-donor ability.",

author = "Takashi Konno and El-Khouly, {Mohamed E.} and Yosuke Nakamura and Keisuke Kinoshita and Yasuyuki Araki and Osamu Ito and Toshitada Yoshihara and Seiji Tobita and Jun Nishimura",

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T1 - Photoinduced intramolecular electron transfer of carbazole trimer-[60]fullerene studied by laser flash photolysis techniques

AU - Konno, Takashi

AU - El-Khouly, Mohamed E.

AU - Nakamura, Yosuke

AU - Kinoshita, Keisuke

AU - Araki, Yasuyuki

AU - Ito, Osamu

AU - Yoshihara, Toshitada

AU - Tobita, Seiji

AU - Nishimura, Jun

PY - 2008/1/31

Y1 - 2008/1/31

N2 - Photoinduced intramolecular events of newly synthesized bis(carbazole trimer)-C60 adducts have been studied by laser flash photolysis techniques in polar and nonpolar solvents. For bis(tert-butyl-substituted carbazole trimer)-C60 adduct, charge separation takes place via the excited singlet state of the C60 moiety in polar solvents as revealed by the combination of the C60-fluorescence quenching and transient absorptions of the radical ion pair. On the other hand, for bis(nonsubstituted carbazole trimer)-C60 adduct, although charge separation takes place, the charge recombination is fast because of the lower electron-donor ability.

AB - Photoinduced intramolecular events of newly synthesized bis(carbazole trimer)-C60 adducts have been studied by laser flash photolysis techniques in polar and nonpolar solvents. For bis(tert-butyl-substituted carbazole trimer)-C60 adduct, charge separation takes place via the excited singlet state of the C60 moiety in polar solvents as revealed by the combination of the C60-fluorescence quenching and transient absorptions of the radical ion pair. On the other hand, for bis(nonsubstituted carbazole trimer)-C60 adduct, although charge separation takes place, the charge recombination is fast because of the lower electron-donor ability.

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