Direct patterning of conductive carbon nanotube/polystyrene sulfonate composites via electrohydrodynamic jet printing for use in organic field-effect transistors
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- Title
- Direct patterning of conductive carbon nanotube/polystyrene sulfonate composites via electrohydrodynamic jet printing for use in organic field-effect transistors
- Authors
- Yong Jin Jeong; Xinlin Lee; Jaehyun Bae; Jaeyoung Jang; Sang Woo Joo; Sooman Lim; Se Hyun Kim; Park, CE
- Date Issued
- 2016-06
- Publisher
- Royal Society of Chemistry
- Abstract
- Carbon-based conductive lines were directly patterned using an electrohydrodynamic (EHD) jet printing technique. We successfully dispersed multiwalled carbon nanotubes (MWCNTs) in a polar solvent through a size-sorting and blending process involving polystyrene sulfonate (PSS), and we fabricated a homogeneous MWCNT/PSS nano-composite ink for EHD printing. We demonstrated that EHD printing was affected by the type of solvent, which adjusted the surface tension of the MWCNT/PSS ink. Ethanol, with a lower surface tension compared to water, provided four different jetting modes, depending on the applied voltage and working distance. EHD-printed MWCNT/PSS conductive lines were used as source/drain (S/D) electrodes in organic field-effect transistors (OFETs). The resulting OFETs showed reliable performance with negligible hysteresis on chlorosilane-terminated polystyrene (PS-brush)-modified substrates.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/37641
- DOI
- 10.1039/C6TC01371F
- ISSN
- 2050-7526
- Article Type
- Article
- Citation
- Journal of Materials Chemistry C, vol. 4, no. 22, page. 4912 - 4919, 2016-06
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