Journal article
Effects of Processing Solvent on the Photophysics and Nanomorphology of Poly(3-butyl-thiophene) Nanowires:PCBM Blends
WL Xu, P Zeng, B Wu, F Zheng, F Zhu, TA Smith, KP Ghiggino, XT Hao
Journal of Physical Chemistry Letters | Published : 2016
Abstract
We report the effect of the processing solvent on the nanoscale morphology and photophysical dynamics of poly(3-butyl-thiophene) nanowires (P3BT-nw). P3BT-nw assembled in ortho-dichlorobenzene (ODCB) show higher crystallization and a longer conjugation length with increased exciton delocalization compared with those assembled in chlorobenzene (CB). It is proposed that this solvent effect is associated with the higher ordered structures formed from ODCB solution state. Charge-transfer dynamics and phase separation for P3BT-nw:PCBM blends were investigated by ultrafast fluorescence techniques. The more efficient fluorescence quenching observed in P3BT-nw:PCBM blend films processed from ODCB su..
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Grants
Awarded by National Natural Science Foundation of China
Awarded by Research Fund for the Doctoral Program of Higher Education
Funding Acknowledgements
This work was supported by the National Natural Science Foundation of China (No. 11574181), Research Fund for the Doctoral Program of Higher Education (Grant No. 20130131110004), and the 'National Young 1000 Talents' Program of China. We thank beamline BL14B1 and BL16B1 (Shanghai Synchrotron Radiation Facility) for providing the beam time. We also acknowledge support by the International Research and Research Training Fund (IRRTF) from the University of Melbourne.