Photophysical studies on axially substituted indium and gallium phthalocyanines upon UV-Vis laser irradiation

Yu Chen; Yasuyuki Araki; Mamoru Fujitsuka; Michael Hanack; Osamu Ito; Sean M. O'Flaherty; W. J. Blau

doi:10.1016/j.ssc.2004.06.038

Photophysical studies on axially substituted indium and gallium phthalocyanines upon UV-Vis laser irradiation

Yu Chen, Yasuyuki Araki, Mamoru Fujitsuka, Michael Hanack, Osamu Ito, Sean M. O'Flaherty, W. J. Blau

IMRAM - Division of Organic- and Biomaterials Research

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

28 Citations (Scopus)

Abstract

A series of results from different photophysical experiments on indium and gallium phthalocyanine (Pc) compounds is reported. Gallium Pc's have much longer singlet and triplet excited state lifetimes in comparison with indium Pc's. The strong reverse saturable absorption observed at 532 nm excitation is a consequence of the increase in absorbance of Pc's in the triplet excited state in the optical window comprised between Q- and B-bands, as verified upon laser irradiation with ns pulses at 355 nm. Using C₆₀ as a reference, the intersystem cross quantum yields of tBu₄PcInCl and tBu ₄PcGaCl are 0.70 and 0.36, respectively.

Original language	English
Pages (from-to)	773-778
Number of pages	6
Journal	Solid State Communications
Volume	131
Issue number	12
DOIs	https://doi.org/10.1016/j.ssc.2004.06.038
Publication status	Published - 2004 Sept

Keywords

A. Phthalocyanines
D. Optical properties
E. Nonlinear optics
E. Time-resolved optical spectroscopies

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10.1016/j.ssc.2004.06.038

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title = "Photophysical studies on axially substituted indium and gallium phthalocyanines upon UV-Vis laser irradiation",

abstract = "A series of results from different photophysical experiments on indium and gallium phthalocyanine (Pc) compounds is reported. Gallium Pc's have much longer singlet and triplet excited state lifetimes in comparison with indium Pc's. The strong reverse saturable absorption observed at 532 nm excitation is a consequence of the increase in absorbance of Pc's in the triplet excited state in the optical window comprised between Q- and B-bands, as verified upon laser irradiation with ns pulses at 355 nm. Using C60 as a reference, the intersystem cross quantum yields of tBu4PcInCl and tBu 4PcGaCl are 0.70 and 0.36, respectively.",

keywords = "A. Phthalocyanines, D. Optical properties, E. Nonlinear optics, E. Time-resolved optical spectroscopies",

author = "Yu Chen and Yasuyuki Araki and Mamoru Fujitsuka and Michael Hanack and Osamu Ito and O'Flaherty, {Sean M.} and Blau, {W. J.}",

note = "Funding Information: Y. Chen thanks Japan Science and Technology Agency and Alexander von Humboldt Stiftung of Germany for a fellowship.",

year = "2004",

month = sep,

doi = "10.1016/j.ssc.2004.06.038",

language = "English",

volume = "131",

pages = "773--778",

journal = "Solid State Communications",

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T1 - Photophysical studies on axially substituted indium and gallium phthalocyanines upon UV-Vis laser irradiation

AU - Chen, Yu

AU - Araki, Yasuyuki

AU - Fujitsuka, Mamoru

AU - Hanack, Michael

AU - Ito, Osamu

AU - O'Flaherty, Sean M.

AU - Blau, W. J.

N1 - Funding Information: Y. Chen thanks Japan Science and Technology Agency and Alexander von Humboldt Stiftung of Germany for a fellowship.

PY - 2004/9

Y1 - 2004/9

N2 - A series of results from different photophysical experiments on indium and gallium phthalocyanine (Pc) compounds is reported. Gallium Pc's have much longer singlet and triplet excited state lifetimes in comparison with indium Pc's. The strong reverse saturable absorption observed at 532 nm excitation is a consequence of the increase in absorbance of Pc's in the triplet excited state in the optical window comprised between Q- and B-bands, as verified upon laser irradiation with ns pulses at 355 nm. Using C60 as a reference, the intersystem cross quantum yields of tBu4PcInCl and tBu 4PcGaCl are 0.70 and 0.36, respectively.

AB - A series of results from different photophysical experiments on indium and gallium phthalocyanine (Pc) compounds is reported. Gallium Pc's have much longer singlet and triplet excited state lifetimes in comparison with indium Pc's. The strong reverse saturable absorption observed at 532 nm excitation is a consequence of the increase in absorbance of Pc's in the triplet excited state in the optical window comprised between Q- and B-bands, as verified upon laser irradiation with ns pulses at 355 nm. Using C60 as a reference, the intersystem cross quantum yields of tBu4PcInCl and tBu 4PcGaCl are 0.70 and 0.36, respectively.

KW - A. Phthalocyanines

KW - D. Optical properties

KW - E. Nonlinear optics

KW - E. Time-resolved optical spectroscopies

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DO - 10.1016/j.ssc.2004.06.038

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SN - 0038-1098

VL - 131

SP - 773

EP - 778

JO - Solid State Communications

JF - Solid State Communications

IS - 12

ER -

Photophysical studies on axially substituted indium and gallium phthalocyanines upon UV-Vis laser irradiation

Abstract

Keywords

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