Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 61, Issue SD, Pages -Publisher
IOP Publishing Ltd
DOI: 10.35848/1347-4065/ac58e1
Keywords
organic semiconductor; TIPS-pentacene; electrospray deposition; patterned deposition; flexible substrate
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Organic electronic devices are gaining attention for their ability to be processed into thin films easily using electrospray deposition (ESD) method. This study introduces a new direct-patterning ESD method where an electric field is applied between a syringe needle and a patterned counter electrode. The method successfully forms patterned organic semiconductor films on flexible insulator substrates and allows control over the width of the patterned films by adjusting the applied electric field.
Organic electronic devices are attracting much attention because of their ease of thin-film processing such as inkjet printing. In general, the electrospray deposition (ESD) method is useful for forming uniform thin films. In the present study, we propose a new direct-patterning ESD method in which an electric field is applied between a syringe needle and a patterned counter electrode. Patterned organic semiconductor films were formed on flexible insulator substrates overlying the counter electrodes. In addition, we show that the width of the patterned organic film could be controlled by varying the applied electric field between the syringe needle and counter electrode.
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