A low voltage and small hysteresis C_(60) thin film transistor

Organic thin film transistors with C_(60) as an n-type semiconductor have been fabricated.A tantalum pentoxide(Ta_2O_5)/poly-methylmethacrylate(PMMA) double-layer structured gate dielectric was used.The Ta_2O_5 layer was prepared by using a simple solution-based and economical anodization technique.Our results demonstrate that double gate insulators can combine the advantage of Ta_2O_5 with high dielectric constant and polymer insulator for a better interface with the organic semiconductor.The performance o...