Effects of polarized organosilane self-assembled monolayers on organic single-crystal field-effect transistors

J. Takeya, T. Nishikawa, T. Takenobu, H. Shimotani, S. Kobayashi, T. Mitani, Y. Iwasa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Organosilane self-assembled monolayers, embedded in organic single-crystal field-effect transistors, significantly affect subthreshold properties in the transfer characteristics. The monolayer of either polarized or nearly unpolarized molecules is deposited on a SiO2/doped Si substrate before softly attaching a rubrene thin single crystal to form the "laminated crystal" transistors. As a result of effective passivation of the SiO2 surface, the device has achieved a subthreshold swing as low as 0.11 V/decade. It is also demonstrated that threshold gate voltage is shifted by polarization of the monolayers, indicating that threshold of the device is adjustable by the choice of silane materials. Both of the functions are closely associated with low-power applications such as logic-circuit components.

Original languageEnglish
Title of host publicationOrganic Thin-Film Electronics
Pages263-268
Number of pages6
Publication statusPublished - 2005 Dec 1
Event2005 MRS Spring Meeting - San Francisco, CA, United States
Duration: 2005 Mar 282005 Apr 1

Publication series

NameMaterials Research Society Symposium Proceedings
Volume871
ISSN (Print)0272-9172

Other

Other2005 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period05/3/2805/4/1

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Takeya, J., Nishikawa, T., Takenobu, T., Shimotani, H., Kobayashi, S., Mitani, T., & Iwasa, Y. (2005). Effects of polarized organosilane self-assembled monolayers on organic single-crystal field-effect transistors. In Organic Thin-Film Electronics (pp. 263-268). (Materials Research Society Symposium Proceedings; Vol. 871).