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Related Experiment Videos

Solution-processed ambipolar organic field-effect transistors and inverters.

E J Meijer1, D M de Leeuw, S Setayesh

  • 1Philips Research Laboratories, Professor Holstlaan 4, 5656 AA Eindhoven, The Netherlands.

Nature Materials
|September 23, 2003
PubMed
Summary

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Organic semiconductors can now function as both n-type and p-type transistors, enabling complementary circuits. This breakthrough allows for efficient, solution-processed organic integrated circuits with CMOS-like performance.

Area of Science:

  • Materials Science
  • Organic Electronics
  • Semiconductor Physics

Background:

  • Standard metal oxide semiconductor (MOS) transistors, particularly complementary MOS (CMOS), are foundational for digital circuits due to their robustness and low power consumption.
  • The development of efficient organic integrated circuits necessitates a complementary technology capable of both n-type and p-type transistor operation within a single layer, facilitating easy solution processing.

Purpose of the Study:

  • To demonstrate that both hole and electron transport are inherent properties of organic semiconductors, enabling ambipolar transistor behavior.
  • To develop solution-processed organic ambipolar transistors suitable for creating complementary organic integrated circuits.

Main Methods:

  • Fabrication of solution-processed field-effect transistors using organic semiconductors.

Related Experiment Videos

  • Characterization of charge transport properties to confirm both hole and electron mobility.
  • Integration of organic ambipolar transistors into functional complementary metal-oxide-semiconductor (CMOS)-like inverter circuits.

    • Main Results:

    • Demonstrated ambipolar transport, exhibiting both hole and electron transport, in solution-processed organic field-effect transistors.
    • Observed this ambipolar behavior in various organic semiconductors, including polymers with interpenetrating networks and narrow bandgap materials.
    • Successfully constructed functional CMOS-like inverters by combining the developed organic ambipolar transistors.

    Conclusions:

    • Hole and electron transport are generic properties of organic semiconductors, paving the way for complementary organic circuits.
    • Solution-processed organic ambipolar transistors are viable for industrial applications, analogous to silicon-based transistors.
    • The development enables the creation of robust, low-power organic integrated circuits with good noise margins.