Ink and substrate interactions in printed field-effect transistors

Details

Event Printing Electronics - Ink and Substrate Interactions

Authors

Gregory L Whiting
Tse Nga Ng
Krusor, Brent S.
Beverly Russo
Janos Veres
Technical Publications
August 2nd 2012
The fabrication and resulting performance of printed field-effect transistors (FETs) is strongly dependent on interactions between the fluid inks and solid substrates onto which they are printed. Fabrication of an FET requires multilayer printing of conductors, semiconductors and dielectrics at high resolution, and consideration of the properties of the each ink and the changing structure of the underlying substrate must be made to ensure optimal device performance and yield. By changing the properties of the ink (e.g. surface tension) and the properties of the substrate (e.g. surface energy) the size, spacing, placement, adhesion and morphology of the printed features can all be affected along with the device performance. This presentation will focus on examples of the materials and methods that are used to control ink and substrate interactions in ink-jet printed field-effect transistors. In particular, materials and methods used to control the surface chemistry of the various interfaces will be discussed, as the nature of these interfaces impacts not only the dynamics of film formation, but also the electronic properties (such as mobility and contract resistance) of the transistor. In addition, generalization of these results to other device types and printing techniques will also be made.

Citation

Whiting, G. L.; Ng, T.; Krusor, B. S.; Russo, B.; Veres, J. Ink and substrate interactions in printed field-effect transistors. Printing Electronics - Ink and Substrate Interactions; 2012 August 1-2; Kalamazoo, MI.

Additional information

Focus Areas

Our work is centered around a series of Focus Areas that we believe are the future of science and technology.

FIND OUT MORE
Licensing & Commercialization Opportunities

We’re continually developing new technologies, many of which are available for Commercialization.

FIND OUT MORE
News

PARC scientists and staffers are active members and contributors to the science and technology communities.

FIND OUT MORE