Two- and three-photon absorption and excitation phosphorescence of oligofluorene-substituted Ir(ppy)3

Yuanpeng Fan; Duanchen Ding; Dahui Zhao

doi:10.1039/C4CC09573A

Two- and three-photon absorption and excitation phosphorescence of oligofluorene-substituted Ir(ppy)₃

Yuanpeng Fan,^a Duanchen Ding^a and Dahui Zhao*^a

Author affiliations

* Corresponding authors

^a Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Department of Applied Chemistry and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
E-mail: dhzhao@pku.edu.cn
Tel: +86 10 62753973

Abstract

A series of triscyclometalated iridium complexes with oligofluorene-substituted ppy ligands manifest impressive two- and three-photon absorption properties. In particular, a star-shaped complex bearing three carbazole-terminated trifluorenyl ppy demonstrates a large three-photon absorption cross section up to 81 × 10⁻⁷⁸ cm⁶ s² photon⁻². In combination with optimal phosphorescence quantum yields (0.5–0.8), such iridium complexes are effective two- and three-photon excited phosphorescence emitters.

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Publication details

The article was received on 01 Dec 2014, accepted on 05 Jan 2015 and first published on 05 Jan 2015

Article type: Communication

DOI: 10.1039/C4CC09573A

Author version available: Download Author version (PDF)

Citation: Chem. Commun., 2015,51, 3446-3449

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Two- and three-photon absorption and excitation phosphorescence of oligofluorene-substituted Ir(ppy)₃

Y. Fan, D. Ding and D. Zhao, Chem. Commun., 2015, 51, 3446
DOI: 10.1039/C4CC09573A
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Chemical Communications

Two- and three-photon absorption and excitation phosphorescence of oligofluorene-substituted Ir(ppy)₃

Abstract

Supplementary files

Publication details

Two- and three-photon absorption and excitation phosphorescence of oligofluorene-substituted Ir(ppy)₃

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