Electrical Characterization of P-Channel Organic Thin Film Transistor With Low Voltage Based on Fluorescein Sodium Salt

Organic thin film transistor has been fabricated using fluorescein sodium salt as an activate layer and SiO2 as a gate dielectric. The drain-source current- drain-source voltage curves of the OTFT were obtained under negative and positive gate voltages. The curves indicate a linear region for negative voltage whereas indicates a saturation region at positive VG voltage. The operating voltage of the OTFT studied is about 1 V and this value is very low. The output characteristics of the transistor indicate that the transistor is a p-channel organic thin film transistor with low voltage based on fluorescein sodium salt