Journal article

Optimizing the Crystallinity and Phase Separation of PTB7:PC71BM Films by Modified Graphene Oxide

Cheng-Kun Lv, Fei Zheng, Xiao-Yu Yang, Peng-Qing Bi, Meng-Si Niu, Yu-Zhu Wang, Trevor A Smith, Kenneth P Ghiggino, Xiao-Tao Hao

The Journal of Physical Chemistry C | American Chemical Society | Published : 2018

Abstract

A facile method is proposed to obtain modified shorn graphene oxide (DDAB-sGO) with improved dispersion in organic solvents. Didodecyl dimethylammonium bromide (DDAB)-sGO, which exhibits good dispersibility in the nonpolar solvent o-dichlorobenzene, was obtained via the sono-Fenton reaction and DDAB ionic functionalization. DDAB-sGO was used in the preparation of conjugated polymer:fullerene blend composites. UV–visible absorption spectra, steady-state photoluminescence spectra, fluorescence decay, and grazing incidence X-ray scattering measurements were applied to characterize morphologies, structural features, and charge-transport characteristics of the composites. Doped into poly[[4,8-bis..

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Grants

Awarded by National Natural Science Foundation of China


Awarded by Shandong University


Awarded by State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences


Awarded by ARC Centre of Excellence in Exciton Science


Funding Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 11574181, 61631166001); the Fundamental Research Funds of Shandong University (2015JC047); Open Research Fund of State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (2015014), the "National Young 1000 Talents" Program of China. Support from the University of Melbourne International Research and Research Training Fund (IRRTF) and the ARC Centre of Excellence in Exciton Science (CE170100026) are acknowledged. The authors would like to thank the Shanghai Synchrotron Radiation Facility (beamline BL16B1) for providing the beam time for GIXS measurements.