[AMDp1] Oxide TFTs

[AMDp1-22L] Improved pH reliability of solution-processed In₂O₃ field-effect transistors via Ga doping and different annealing temperatures

JoonHui Park¹, Jeongsoo Hong², Kyung Hwan Kim², *YOU SEUNG RIM¹ (1. Sejong University (Korea), 2. Gachon University (Korea))

Keywords:Oxide semiconductor, Solution process, Biosensor, Electrolyte gated transistor

Studies of metal oxide semiconductors-based biosensors have focused on detection properties done typically by specific target receptor attachment. However, the exploration of metal oxide semiconductors with different physical and chemical properties has still not been considered widely through an understanding of the liquid-solid interface. In this study, we examined the effect of different Ga content on solution-processed indium oxide films and their transistors. As a result, we confirmed that surface defects could be suppressed by the addition of Ga, which affected the pH reliability of devices under different pH environments.