Soft, conformable electrical contacts for organic semiconductors: High-resolution plastic circuits by lamination

Yueh Lin Loo, Takao Someya, Kirk W. Baldwin, Zhenan Bao, Peter Ho, Ananth Dodabalapur, Howard E. Katz, John A. Rogers

Research output: Contribution to journalArticlepeer-review

211 Scopus citations


Soft, conformable electrical contacts provide efficient, noninvasive probes for the transport properties of chemically and mechanically fragile, ultrathin organic semiconducting films. When combined with high-resolution printing and lamination techniques, these soft contacts also form the basis of a powerful technique for fabricating flexible plastic circuits. In this approach, a thin elastomeric film on a plastic substrate supports the electrodes and interconnections; laminating this substrate against another plastic substrate that supports the gate, dielectric and semiconductor levels establishes effective electrical contacts and completes the circuits. In addition to eliminating many of the problems associated with traditional layer-by-layer fabrication strategies, this lamination scheme possesses other attractive features: the transistors and circuit elements are naturally and efficiently encapsulated, and the active organic semiconductor layer is placed near the neutral mechanical plane. We demonstrate the features of soft, laminated contacts by fabricating large arrays of high-performance thin film transistors on plastic substrates by using a wide variety of organic semiconductors.

Original languageEnglish (US)
Pages (from-to)10252-10256
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number16
StatePublished - Aug 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General


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