Capillary Flow Control in Vacuum Drying for Uniform Pixel Thin Films in Inkjet-Printed OLEDs: Effects of Pumping Speed and Binary Solvent Ratios

Eliminating the coffee-ring effect caused by capillary flow is crucial for achieving uniform thin films in inkjet-printed display pixels. This study investigates methods to suppress capillary flow influence during the vacuum drying process to form uniform inkjet-printed OLED thin films. A drying mod...

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Hlavní autor:	Youngwook Noh (2629975) (author)
Další autoři:	Kyung-Tae Kang (2674477) (author), Kwan Hyun Cho (9426549) (author)
Vydáno:	2025
Témata:	Biophysics Biochemistry Physiology Biotechnology Ecology Sociology Plasma Physics Space Science Mathematical Sciences not elsewhere classified Chemical Sciences not elsewhere classified thin film uniformity study investigates methods optimized conditions exhibited mixed solvent increased luminous efficiency compared film thickness deviation binary solvent ratios printed organic light printed display pixels >< sub >< capillary flow dynamics capillary flow control vacuum drying process three distinct stages ring effect caused oled device performance form uniform inkjet evaporation ii decreased dimensionless time factor vacuum pumping speed capillary flow vacuum drying ring effect pumping speed evaporation ii printed oleds vacuum level real time key factor ></ sub results demonstrated line state flat surface findings provide f </ emitting diode effective strategy devices fabricated cr </ comprehensive understanding closely monitored boiling point
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Capillary Flow Control in Vacuum Drying for Uniform Pixel Thin Films in Inkjet-Printed OLEDs: Effects of Pumping Speed and Binary Solvent Ratios

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