期刊
ORGANIC ELECTRONICS
卷 15, 期 9, 页码 2043-2051出版社
ELSEVIER
DOI: 10.1016/j.orgel.2014.05.018
关键词
Inkjet printing; PEDOT:PSS; Transverse conductivity; Charge transport model; Workfunction; Morphology
资金
- Innovative Electronics Materials Research Centre (IeMRC)
- EPSRC [EP/H03014X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H03014X/1] Funding Source: researchfish
Transverse (z) alignment of PEDOT grains was demonstrated in inkjet printed PEDOT:PSS. This explained the superior transverse charge conduction mode in inkjet printed PEDOT:PSS films, best fitted by the Efros-Shklovskii 1D-VRH (variable range hopping) model in this study compared with spin coated PEDOT:PSS films, which have demonstrated layers of generally in-plane aligned PEDOT:PSS grains. The findings of this study, regarding the microstructure of inkjet printed PEDOT:PSS films and their transverse charge transport model, justify measurements of the transverse conductivity of inkjet printed films in this study being 600 times higher than that of spin coated films. In addition, it was found that the addition of 5 wt% DMSO in the printing PEDOT:PSS ink lowers the workfunction by 3% approximately. (C) 2014 Elsevier B.V. All rights reserved.
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