Efficient Hybrid Transistor for Low-Cost Organic Circuitry

Abstract (Set) The Johns Hopkins University seeks a partner to commercialize a novel low-voltage, electron-carrying hybrid transistor. The organic field effect transistor (OFET) operates in a voltage range between 0.1and 10 volts, making it useful for constructing complex organic electronic circuitry such as display backplanes, sensor arrays, flexible amplifiers, and low-level memory tags, such as RFID tags.

Click here for high-quality marketing materials. Description (Set) • Organic and printed circuits are generally tested and operated at voltages in the range of 10 - 100 V. This range is much too high for many applications where power is limited, such as with small batteries or radiofrequency power sources.
• A major challenge for printed electronics is to process gate dielectrics without the capital-intensive, slow processes generally associated with silicon-based technology.
• High-capacitance gate dielectrics made by printing methods generally suffer from high leakage currents that override the switching action of the transistor.
• Combinations of materials described in this invention overcome these problems in two ways:
1. A sol-gel-processed dielectric utilizing ion mobility to increase capacitance in a spin-coated, thermally cured thin film. This technique is entirely unprecedented. 2. A novel organic semiconductor using long, well-packed sided chains to act as a self-organized blocking layer to limit leakage current, and even to act as part of the gate dielectric itself.
• The fabrication process does not require the use of high-tech deposition methods, which will significantly reduce manufacturing costs. Proposed Use (Set) Organic electronics

Inventor(s): Katz, Howard ,Pal, Bhola,See, Kevin

Type of Offer: Licensing



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