Single‐Crystal Organic Nanowires of Copper–Tetracyanoquinodimethane: Synthesis, Patterning, Characterization, and Device Applications

Abstract

Stromschalter: Nanodrähte des organischen Halbleiters Kupfer‐Tetracyanchinodimethan (Cu‐TCNQ) wurden durch Abscheidung aus der Gasphase auf eine Vielzahl an Substraten in Mustern aufgebracht. Eine Kreuzungspunkt‐Speichereinheit aus einem Netz von Cu‐TCNQ‐Nanodrähten (siehe Bild) schaltet wiederholt elektrisch zwischen zwei Zuständen, deren Leitfähigkeiten sich um mehr als zwei Größenordnungen unterscheiden.

Porphyrin-Based Nanostructures for Photocatalytic Applications

“…As is known, one of the main problems associated with the use of organic nanostructures is their notoriously low charge carrier mobility, which constitutes an impediment on their photocatalytic activities. However, an increased mobility can be achieved when they are assembled into single crystals due to their perfect molecular ordering [ 56 , 57 ]. Experimental results have proven that higher mobility, along with higher intrinsic charge-transport properties can be observed in single-crystalline organic optoelectronic devices.…”

Scalable approach for the realization of garland shaped 3D assembly of CuTCNQ nanorods: an efficient electron emitter

“…The growth of these nanorods can proceed until the complete depletion of reactants (TCNQ or Cu). 27 As time prolongs (T30), higher dimensional and closely packed CuTCNQ nanorods start to coalesce with their neighbors and quickly evolve into micron sized columnar structures. 23,28 It is well accepted that CuTCNQ has partial solubility in an acetonitrile solution.…”

Directed Integration of Tetracyanoquinodimethane‐Cu Organic Nanowires into Prefabricated Device Architectures

“…Therefore, direct nanowire growth between prefabricated electrodes appears to be the most promising method for the fabrication of single-crystal organic nanowire devices. In this paper, we report a facile, low-temperature technique for the synthesis of single-crystal TCNQ-Cu organic nanowires between prefabricated electrodes by reactive chemical vapor deposition, [23,24] demonstrating the self-assembled integration of organic nanowires into devices. Compared to current synthesis processes for inorganic nanowires and carbon nanotubes, this method avoids the high temperatures that often damage pre-existing electrodes and other microelectronic components.…”

“…The TCNQ-Cu nanowires are grown by the reaction of TCNQ vapor with Cu via a selective VS reaction mechanism according to Equation 1. [23,24] Cu solid TCNQ vapor À 3…”