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

doi:10.1021/acs.jpcc.7b11726

CAS OpenIR > 中科院上海应用物理研究所2011-2020年

	Optimizing the Crystallinity and Phase Separation of PTB7:PC71BM Films by Modified Graphene Oxide
	Lv, CK ; Zheng, F ; Yang, XY ; Bi, PQ ; Niu, MS ; Wang, YZ ; Smith, TA ; Ghiggino, KP ; Hao, XT
	2018
Source Publication	JOURNAL OF PHYSICAL CHEMISTRY C
ISSN	1932-7447
Volume	122 Issue:5 Pages:2572-2581
Subtype	期刊论文
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[[4,8bis [(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenecliyl]] (PTB7):[6,6]-phenyl C-71 butyric acid methyl ester (PC71BM) conjugated polymer blends, DDAB-sGO is shown to facilitate increased crystallinity and phase separation of PTB7 and PC71BM to achieve a more optimal morphology for bulk heterojunction solar cells, resulting in a similar to 12% enhancement in power conversion efficiency over the undoped PTB7:PC71BM blend.
Keyword	Heterojunction Solar-cells Conjugated Polymer Graphite Oxide Solvothermal Reduction Photovoltaic Cells Electric-field Hole Transport Quantum Dots Performance Poly(3-hexylthiophene)
DOI	10.1021/acs.jpcc.7b11726
Indexed By	SCI
Language	英语
WOS ID	WOS:000424955400014
Citation statistics	Cited Times:9[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sinap.ac.cn/handle/331007/29097
Collection	中科院上海应用物理研究所2011-2020年
Affiliation	1.Lv, CK 2.Zheng, F 3.Yang, XY 4.Bi, PQ 5.Niu, MS 6.Wang, YZ 7.Smith, TA 8.Ghiggino, KP 9.Hao, XT
Recommended Citation GB/T 7714	Lv, CK,Zheng, F,Yang, XY,et al. Optimizing the Crystallinity and Phase Separation of PTB7:PC71BM Films by Modified Graphene Oxide[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(5):2572-2581.
APA	Lv, CK.,Zheng, F.,Yang, XY.,Bi, PQ.,Niu, MS.,...&Hao, XT.(2018).Optimizing the Crystallinity and Phase Separation of PTB7:PC71BM Films by Modified Graphene Oxide.JOURNAL OF PHYSICAL CHEMISTRY C,122(5),2572-2581.
MLA	Lv, CK,et al."Optimizing the Crystallinity and Phase Separation of PTB7:PC71BM Films by Modified Graphene Oxide".JOURNAL OF PHYSICAL CHEMISTRY C 122.5(2018):2572-2581.

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