Project TitleCrosslinkable Polymer Dielectrics
Track Code2004-112
Short Description

Novel dielectric polymers that can easily be incorporated into organic thin film transistors to enable high capacitance and low operating voltage

#materials #semiconductors #thinfilm #transistor #manufacturing


Electronic devices based on organic thin-film transistors (OTFTs) provide several advantages over traditional inorganic-based transistors. OTFT devices are lightweight, flexible and can be easily fabricated into large-area displays. However, the continued development of OTFTs hinges on high-performance gate dielectric materials. Such a material should be insulating, flexible, easily deposited from solution and be compatible with various organic and inorganic semiconductors. The Marks group from Northwestern University has developed a polymer dielectric material that accomplishes these goals. Their innovative gate dielectric material is composed of readily available polymers combined with organosilane crosslinking agents. The addition of a crosslinking agent makes this type of dielectric material impervious to cracking and delamination when the substrate is bent or treated with a solvent. Furthermore, these favorable mechanical properties also allow for the OTFT to be processed after the dielectric is deposited via solution-phase fabrication techniques. 

TagsMATERIALS: manufacturing, MATERIALS: thin films, SEMICONDUCTOR: transistor
Posted DateMar 3, 2015 10:59 AM


He Yan

Myung-Han Yoon

Antonio Facchetti

Tobin J. Marks*


  • Organic field-effect and thin film transistors


  • High capacitance and low leakage
  • Easy to deposit from solution
  • Strong adherence to a variety of substrates
  • Low operating voltage


IP Status

International patent application has been filed and US patents 8,093,588 and 7,605,394 have been issued.

Marketing Contact

Zach Brown, PhD

Invention Associate

(p) 847.491-4629