A vertical organic inverter is introduced that consists of two p-channel transistors. The concept of stacking transistors vertically is utilized with the resulting circuit structure is which one pentacene transistor is stacked on top of another pentacene transistor. The two transistors have different polymer dielectrics. Utilization of two different dielectrics enables each of the two transistors to behave as a drive and load transistor for the inverter. The fabrication is simple and allows for a larger scale of integration. The performance of this all p-channel inverter is comparable to that of complementary organic inverters that operate at high voltage.