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|Title:||Characterization of drop-on-demand microdroplet printing|
|Source:||Zhou, J.X., Fuh, J.Y.H., Loh, H.T., Wong, Y.S., Ng, Y.S., Gray, J.J., Chua, S.J. (2010-04). Characterization of drop-on-demand microdroplet printing. International Journal of Advanced Manufacturing Technology 48 (1-4) : 243-250. ScholarBank@NUS Repository. https://doi.org/10.1007/s00170-009-2274-6|
|Abstract:||Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has been used extensively in the fabrication of polymer light-emitting diode displays by drop-on-demand inkjet printing technique. In order to make a good thin film with high uniformity, it is crucial to control the drying behavior of inkjet-printed PEDOT:PSS droplets. In this work, the morphology of printed drops of ∼10 pL after drying was examined and explained in a qualitative manner, which would extend the comparison with previous work described in published literature. Results show that drying behavior is sensitive to substrate temperature due to the high surface-to-volume ratio of a microfluid. There exists an appropriate range of temperatures to obtain a good drop with sharp edge and flat surface. On the other hand, when the temperature exceeds a limit, a ring-like structure was observed. Results from this experiment would be considered as a reference to achieve uniform film after drying and has potential to be applied in the modeling of drop impact. © Springer-Verlag London Limited 2009.|
|Source Title:||International Journal of Advanced Manufacturing Technology|
|Appears in Collections:||Staff Publications|
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