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

被引：26
作者：
Chen, Y
Araki, Y
Fujitsuka, M
Hanack, M
Ito, O
O'Flaherty, SM
Blau, WJ
机构：
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Prof Itos Grp, IMRAM,CREST,JST, Sendai, Miyagi 9808577, Japan
[2] E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China
[3] Univ Tubingen, Inst Organ Chem, D-72076 Tubingen, Germany
[4] Univ Dublin Trinity Coll, Dept Phys, Mat Ireland Polymer Res Ctr, Dublin 2, Ireland
来源：
SOLID STATE COMMUNICATIONS | 2004年 / 131卷 / 12期
基金：
日本科学技术振兴机构;
关键词：
phthalocyanines; optical properties; time-resolved optical spectroscopies; nonlinear optics;
D O I：
10.1016/j.ssc.2004.06.038
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
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 C-60 as a reference, the intersystem cross quantum yields of tBu(4)PcInCl and tBu(4)PcGaCl are 0.70 and 0.36, respectively. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：773 / 778
页数：6
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