[EPp1-4L] Inkjet Printing Application of Invisible Ink Made of Antimony-Doped Tin Oxide | Proceedings of the International Display Workshops Volume 31 (IDW '24)

Proceedings of the International Display Workshops Volume 31 (IDW '24)

Dec 4 - Dec 6, 2024Sapporo Convention Center

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Proceedings of the International Display Workshops Volume 31 (IDW '24)

Dec 4 - Dec 6, 2024Sapporo Convention Center

[EPp1-4L]Inkjet Printing Application of Invisible Ink Made of Antimony-Doped Tin Oxide

*Tetsu Hyodo¹, Yuka Funawatari¹, Shuichi Maeda¹, Shigeki Takahashi²(1. University of Tokai (Japan), 2. Yamagata University (Japan))

https://doi.org/10.36463/idw.2024.1063

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Keywords:

Antimony doped tin oxide,Invisible ink,Inkjet print

We have synthesized antimony-doped tin oxide (ATO) inks. These inks are invisible in visible light, but recognizable in infrared light and can be used in the anti-counterfeiting. These inks were successfully adapted for digital printing by inkjet method. By changing the ATO concentration in the inks, it is possible to control invisibility in visible light and ease of recognition in near-infrared light.

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