This section provides a brief overview of the most important concepts previously used. Work is given. After introducing the basis of organic semiconductors, Specifically mentioning the transport of charge from these materials, we describe the contact formation and doping of this material type. Terminate within this chapter. Brief introduction of two organic electronic devices investigated in this paper - Metal Insulator Semiconductor (MIS) Condenser and Organic Eld Transistor (OFET). Organic semiconductors are relative to inorganic materials. Carbon is a major structural element, consisting of molecules or polymers. The transport of charge of these materials was first based on the combined ﬁ system. It was discovered by Chiangetalin doping poly acetylene. Because it's a big possibility. Strong physical correlation between organic chemistry and chemical structure. The properties of these materials can be adapted to meet specific needs. In itself Organic semiconductors have been established as alternative materials in the past. Manufactured organic light emitting diodes for conventional semiconductor devices (OLED) boasts high market penetration, organic solar cells (OPV) or Organic ELEDECT transistors (OFETs) have no delay. Other Organic Device 1 back Sensors and memorials are new themes for ongoing research.