Journal
JOURNAL OF COORDINATION CHEMISTRY
Volume 67, Issue 17, Pages 2911-2924Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00958972.2014.959509
Keywords
Two-photon absorption; Pyrene; Indium phthalocyanine; Limiting threshold; Nonlinear optics; Z-scan
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Funding
- African Laser Centre (ALC)
- Department of Science and Technology (DST)
- CSIR National Laser Centre
- Rental Pool Programme
- National Research Foundation (NRF) of South Africa through DST/NRF South African Research Chairs Initiative
- Rhodes University
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Photophysical and two-photon-dependent nonlinear absorption properties of two chloroindium(III) phthalocyanines bearing pyrene units have been investigated. The tetra- (3) and the tri- (4) pyrene-substituted phthalocyanines exhibit strong triplet absorption with high triplet yields ( [GRAPHICS] ) of 0.79 and 0.83, respectively. The measured nonlinear optical data, such as the two photon absorption cross-sections, the third- and second-order nonlinearities were found to be comparable with those of literature, thus, making the compounds promising candidates for a broad range of nonlinear optical applications.
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