biostudies-literatureCan TTTNational Research Foundation of Korea (NRF)National Research Foundation of Korea9180https://www.ebi.ac.uk/biostudies/studies/S-EPMC6591279biostudies-literatureUnknown9(1)Electrohydrodynamic (EHD) jet printing has a variety of benefits compared to conventional inkjet techniques, such as high resolution and the ability to work with high-viscosity pastes. In this work, Ag nanoparticles with 4000 cPs were chosen because they are printable on various substrates for electronic devices. The effects of additive on the high-viscosity Ag paste formulation were investigated, and pattern lines narrower than 100 μm were achieved by EHD-jet printing with an average sheet resistance of 0.027 Ω □^-1. Furthermore, solution-processed oxide TFTs were fabricated with EHD jet-printed Ag electrodes for the first time. The electrical properties obtained were a current ratio of 1.5 × 10⁶, a mobility of approximately 1 cm² V^-1 s^-1, a threshold voltage of 21.5 V, and a subthreshold slope of 3.05 V dec^-1.Scientific reportsPatterning of High-Viscosity Silver Paste by an Electrohydrodynamic-Jet Printer for Use in TFT Applications.PMC6591279NRF-2018R1D1A1B07048441Can TTTNguyen TCChoi WSfalsePatterning of High-Viscosity Silver Paste by an Electrohydrodynamic-Jet Printer for Use in TFT Applications.Electrohydrodynamic (EHD) jet printing has a variety of benefits compared to conventional inkjet techniques, such as high resolution and the ability to work with high-viscosity pastes. In this work, Ag nanoparticles with 4000 cPs were chosen because they are printable on various substrates for electronic devices. The effects of additive on the high-viscosity Ag paste formulation were investigated, and pattern lines narrower than 100 μm were achieved by EHD-jet printing with an average sheet resistance of 0.027 Ω □^-1. Furthermore, solution-processed oxide TFTs were fabricated with EHD jet-printed Ag electrodes for the first time. The electrical properties obtained were a current ratio of 1.5 × 10⁶, a mobility of approximately 1 cm² V^-1 s^-1, a threshold voltage of 21.5 V, and a subthreshold slope of 3.05 V dec^-1.2019-01-01T00:00:00Z2019 Jun2024-12-03T18:14:30.209Z2019-07-24T07:27:32ZS-EPMC65912793123572010.1038/s41598-019-45504-5