Characterization of spray-coating methods for conjugated polymer blend thin films

Content Provider	Semantic Scholar
Author	Noebels, Matthias Cross, Rachel Evans, Daniel A. Finlayson, Chris E.
Copyright Year	2014
Abstract	We examine the characteristics and functionality of conjugated polymer thin films, based on blends of poly(9,9-dioctylfluorene-2,7-diyl-co-bis-N,NN′-(4-butylphenyl)-bis-N,N′-phenyl-1,4-phenylenediamine) (PFB) and poly(9,9-dioctylfluorene-2,7-diyl-co-benzothiadiazole) (F8BT), using a spray-coating deposition technique suitable for large areas. The morphological properties of these blend films are studied in detail by atomic force microscopy (AFM) methods, showing that favourable results, in terms of layer deposition rate and uniformity, can be achieved using a 5:1 blend of o-dichlorobenzene and chlorobenzene as the solvent medium. A photoluminescence quenching efficiency of above 80 % is also observed in such blend films. As a feasibility study, prototypical photovoltaic devices exhibit open circuit voltages of up to 1.0 V under testing, and solar power conversion efficiencies in the 0.1–1 % order of magnitude; metrics which are comparable with those reported for spin-coated cells of the same active blend and device architecture.
Starting Page	4279
Ending Page	4287
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1007/s10853-014-8123-5
Volume Number	49
Alternate Webpage(s)	http://cadair.aber.ac.uk/dspace/bitstream/handle/2160/30433/JMSC_D_14_00164_PrePrint.pdf;sequence=1
Alternate Webpage(s)	https://pure.aber.ac.uk/portal/files/5966861/JMSC_D_14_00164_PrePrint.pdf
Alternate Webpage(s)	https://doi.org/10.1007/s10853-014-8123-5
Journal	Journal of Materials Science
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article