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Field Emission from Nanorod Crystalline Films of a Strong Organic Electron Donor, Tetrathiotetracene

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Abstract:

A strong electron donor, tetrathiotetracene (TTT), with low ionization potential (6.27 eV), low electron affinity (1.10 eV), high conductivity (up to 10−5 S/m) and good thermal stability (melting point ∼ 375 °C) was introduced into field emitters. Nanorod crystalline films of TTT were synthesized by vacuum deposition depending on the strong pi interaction between TTT molecules. The nanorod films exhibited excellent field emission properties with a turn-on field of 11.1∼11.3 V/m, a maximum current density of 5.0∼7.1 mA/cm2 at an applied field of 25 V/m, which indicated great potential for field emission application of the strong organic electron donor, TTT.

Keywords: CONDUCTIVITY; FIELD EMISSION; TETRATHIOTETRACENE NANORODS

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2009.1322

Publication date: November 1, 2009

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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