project: COSMIC

Vision and Aims

Advanced state-of-the-art complementary organic circuits

COSMIC will advance the state of the art of complementary organic circuits, i.e. circuits combining n-type and p-type organic thin film transistors (OTFTs). The project comprises extensive research on technology, circuit design, OTFT modelling and characterization. The technology effort includes material and printing processes co-development (incl. LC polymers) and focuses on large area and highly productive in-line compatible processes.

Enhanced scientific knowledge of organic electronic

COSMIC's research will strongly contribute to advancement of the scientific knowledge in organic electronics. The use of complementary transistors will enable major breakthroughs in performance and application potential of OTFT circuits.

Discover new applications

Complementary digital circuits show a dramatically improved noise margin, allowing higher complexity and yield compared to p-type-only circuits. They can work at lower supply voltage (often below 10V) resulting in reduced power consumption and better integration potential between silicon and organic electronics. High complexity will enable many new applications for organic digital circuits.

Enable the design of analogue circuits using OTFTS's

In COSMIC we selected two specific logic applications as demonstrators: a display line driver and an ALU. The availability of complementary devices will also enable the design of analogue circuits using OTFTs, a basically unexplored field at the moment.

Show potential in the sensors and actuator market

In COSMIC an analogue to digital converter coupled to a temperature sensor will be demonstrated, showing for the first time the potential of OTFTs in the sensors and actuator market. A silent authentication tag comprising a first organic RF receiver will also be build, to show organic electronics’ potential in the field of item-level, secure tracking of goods using realistic protocols.

High relevance to all industrial partners

All COSMIC applications are of direct relevance to the industrial partners within the consortium and demonstrate the capability of organic complementary technology to generate value for the European industry at large.

For a general introduction to printed electronics see this film:

In recent years a lot of research and process development has been done to print electronics like newspapers with roll-to-roll processes. Many components such as wires, resistors and capacitors can already be produced. The important and complex transistor component still needs improvement (see figure for a possible cross section). At least four layers are necessary to build a transistor on an available substrate:

  • Bottom wiring (e.g. source and drain)
  • Semiconductor
  • Dielectricum
  • Top wiring (e.g. gate)

The last years have shown that due to materials, processes and layout even more layers are necessary. COSMIC will select materials and develop processes to print complex transistors circuits in a roll-to-roll manner.

schematics