A pneumatically controlled ink direct writing system with visual observation and laser altimetry functions was developed,and the ink direct writing effect of the system on substrates with different concentration solutions was investigated.The ink direct writing effect was verified by using it to deposit a gate dielectric layer film for an ion-gate transistor,proving the system's ability to deposit material inks and its applicability in the field of printed electronics.
printed electronicsdirect ink writingthin film depositionion-gated transistors