43 innovations

Energy-saving organic circuits

Transistors made from organic materials have an advantage over normal silicon transistors. They can be constructed on flexible surfaces, such as plastic film, making organic circuits ideal for portable and mobile devices. However, until now, organic transistors have also had a big disadvantage: they consumed too much energy. Scientists have now constructed energy-saving organic circuits.The circuit diagram and the photograph of a complementary inverter made of one p and one n channel thin film transistor (TFT), i.e. a transistor with either a p or n conductive semiconductor layer. A complementary circuit like this saves energy because in each of the two logical states - either high input energy and low output voltage or the contrary - one or other of the two transistors (p or n) blocks the current flow. This energy saving is an important advantage of complementary circuits as compared to unipolar circuits, which consist of only p channel transistors or n channel transistors.

Source: physorg.comAdded: 23 March 2007