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Organic Multi-layer Transistor Constructed by Molecular Self-Assembly of Pyryl Phosphonic Acid

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

We present a simple method to construct a multi-layer transistor by exploiting self-assembly of pyryl phosphonic acid (PYPA) molecules between a set of interdigitated metal electrodes on a silicon dioxide surface. The self-assembly method used for the construction of the device makes it compatible for integration with Complementary Metal Oxide Semiconductor (CMOS) circuits. Using X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM), we have established that PYPA molecules form either a dense 0.9 nm thin monolayer or a polycrystalline multilayer on SiO2 surface with the specific step height of 2.5 nm. By studying the gating effect of the transistors, we measured the carrier mobility in PYPA as a function of the applied electric field. Using these results, we have proposed a conduction model in the PYPA self-assembled device. ©2005 IEEE.
Original languageEnglish
Title of host publicationProceedings of 2005 5th IEEE Conference on Nanotechnology
PublisherIEEE
Pages511-514
Volume2
ISBN (Print)0780391993
DOIs
Publication statusPublished - Jul 2005
Externally publishedYes
Event5th IEEE Conference on Nanotechnology, IEEE-NANO 2005 - Nagoya, Japan
Duration: 11 Jul 200515 Jul 2005

Publication series

NameIEEE Conference on Nanotechnology
ISSN (Print)1944-9399

Conference

Conference5th IEEE Conference on Nanotechnology, IEEE-NANO 2005
PlaceJapan
CityNagoya
Period11/07/0515/07/05

Research Keywords

  • Molecular electronics
  • Self-assembled monolayer
  • Self-assembly
  • Thin-film transistor

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