Journal article
Photophysical and Fluorescence Anisotropic Behavior of Polyfluorene β-Conformation Films
MN Yu, H Soleimaninejad, JY Lin, ZY Zuo, B Liu, YF Bo, LB Bai, YM Han, TA Smith, M Xu, XP Wu, DE Dunstan, RD Xia, LH Xie, DDC Bradley, W Huang
Journal of Physical Chemistry Letters | Published : 2018
Abstract
We demonstrate a systematic visualization of the unique photophysical and fluorescence anisotropic properties of polyfluorene coplanar conformation (β-conformation) using time-resolved scanning confocal fluorescence imaging (FLIM) and fluorescence anisotropy imaging microscopy (FAIM) measurements. We observe inhomogeneous morphologies and fluorescence decay profiles at various micrometer-sized regions within all types of polyfluorene β-conformational spin-coated films. Poly(9,9-dioctylfluorene-2,7-diyl) (PFO) and poly[4-(octyloxy)-9,9-diphenylfluoren-2,7-diyl]-co-[5-(octyloxy)-9,9-diphenylfluoren-2,7-diyl] (PODPF) β-domains both have shorter lifetime than those of the glassy conformation for..
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Grants
Awarded by University of Melbourne
Funding Acknowledgements
The project was supported by the National Key Basic Research Program of China (973) (2015CB932200), the National Natural Science Foundation of China (U1301243, 21274064, 21504041), Doctoral Fund of Ministry of Education of China (20133223110007), Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions, PAPD (YX03002), the Six Peak Talents Foundation of Jiangsu Province (XCL-CXTD-009), and Program for Postgraduates Research Innovation in University of Jiangsu Province (KYCX17_0752). We also acknowledge support by the International Research and Research Training Fund (IRRTF) from the University of Melbourne and the ARC Centre of Excellence in Exciton Science (CE170100026). J.L. also acknowledges SICAM Fellowship (NanjingTech), the Plastic Electronics Centre, Physics Department of Imperial College London (IC), and Oxford University.