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

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",

note = "Funding Information: This work was supported by a Japanese Ministry of Education, Culture, Sports, Science, and Technology grant (no. 16H06268 to YM), a Japan Intractable Disease Research Foundation grant (to YM), a Japanese Retinitis Pigmentosa Society grant (to YM), and a Rohto Award (to YM). ",

year = "2008",

month = jan,

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doi = "10.1021/jp076387a",

language = "English",

volume = "112",

pages = "1244--1249",

journal = "Journal of Physical Chemistry C",

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publisher = "American Chemical Society",

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TY - JOUR

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

N1 - Funding Information: This work was supported by a Japanese Ministry of Education, Culture, Sports, Science, and Technology grant (no. 16H06268 to YM), a Japan Intractable Disease Research Foundation grant (to YM), a Japanese Retinitis Pigmentosa Society grant (to YM), and a Rohto Award (to YM).

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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SN - 1932-7447

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

Abstract

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