Iridium(III) complexes in discs for two-photon excitation applications

被引：19

作者：

Ho, Mei-Lin ^{[1
]}

Lin, Min-Hsiu ^{[1
]}

Chen, Yi-Ting ^{[1
]}

Sheu, Hwo-Shuenn ^{[2
]}

机构：

[1] Soochow Univ, Dept Chem, Taipei 111, Taiwan

[2] Natl Synchrotron Radiat Res Ctr, Hsinchu, Taiwan

来源：

CHEMICAL PHYSICS LETTERS | 2011年 / 509卷 / 4-6期

关键词：

OPTICAL-DATA STORAGE; ABSORPTION PROPERTIES; ORGANIC MATERIALS; TRIPLET EMITTERS; IR-III; FLUORESCENCE; DYNAMICS; LIGANDS; DESIGN; PHOSPHORESCENCE;

D O I：

10.1016/j.cplett.2011.05.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ir(ppy)(2)(H(2)dcbpy)PF6 (IrHP, ppy = 2-phenylpyridine, H(2)dcbpy = 4,4'-dicarboxy-2,2'-bipyridine) as the bridging ligand mixed with Zn(NO3)(2)center dot 6H(2)O in a ratio of 1:2 (ZnIrHP) in PMMA discs has been synthesized. The two-photon excitation emission of IrHP and ZnIrHP is ascribed to a (MLCT)-M-3 transition. The two-photon absorption (2PA) cross section and two-photon induced excited state absorption (ESA) cross section of IrHP were deduced as 1.37 x 10(4) +/- 6.87 x 10(2) GM and 6.63 x 10(-22) +/- 3.31 x 10(-23) cm(2), respectively, at 800 nm (1 GM = 10(-50) cm(4) s/photon). In contrast, the 2PA of ZnIrHP exhibits higher-order nonlinearity and the cross section was 5.68 x 10(5) +/- 2.84 x 10(4) GM. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：162 / 168

页数：7

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