7450-59-1Relevant articles and documents
Organic Thin-Film Transistors Fabricated by Solution-Processed and Low-Temperature Condensed Hybrid Gate Dielectrics
Song, Youngmin,Ha, Young-Geun
, p. 123 - 126 (2020)
Herein, we report on the preparation of new solution-processed and low-temperature condensed organic–inorganic hybrid dielectric films and their electrical properties for applications in low-power organic thin-film transistors (OTFTs). The low-temperature condensed hybrid dielectric films (~19 nm thick) were simply fabricated by spin coating a mixture solution of a zirconium chloride and synthesized bifunctional phosphonic acid organic reagents, followed by annealing at a relatively low temperature (~90 °C). The prepared hybrid dielectric films exhibited excellent dielectric properties (low leakage current density ?6 A/cm2 and high capacitance of 520 nF/cm2) as well as a smooth surface (RMS roughness a relatively low operating bias (?2 V) and exhibited great TFT characteristics (hole mobility: 0.3 cm2/V/s, low threshold voltage: ?0.7 V, low subthreshold swing: 0.17 V/dec, on/off current ratio: 105).
Rapid one-pot synthesis of alkane-α ω, diylbisphosphonic acids from dihalogenoalkanes under microwave irradiation
Villemin, Didier,Moreau, Bernard,Kaid, M'Hamed,Didi, Mohamed Amine
experimental part, p. 1583 - 1586 (2010/10/01)
A one-pot, two-step synthesis of alkylenebisphosphonic acids from dihalogenoalkanes was performed under microwave irradiation. The reaction is very rapid and convenient for the synthesis of small samples of alkylenebisphosphonic acids. Copyright Taylor & Francis Group, LLC.
The role of substrate identity in determining monolayer motional relaxation dynamics
Horne,Blanchard
, p. 6336 - 6344 (2007/10/03)
We report on the lifetime and motional dynamics of Zirconium Phosphonate (ZP) monolayers containing oligothiophene chromophores in a range of concentrations. Monolayers were formed on fused silica substrates and on a 15 ? oxide layer formed on crystalline Si(100) substrates. For both interfaces, the fluorescence lifetime behavior of the chromophores is identical and does not depend on chromophore concentration within the monolayer. Transient anisotropy measurements reveal that, for both substrates, the chromophores are oriented at ~35°with respect to the surface normal. For monolayers formed on silica, there is no evidence for chromophore motion, while motion is seen for monolayers formed on silicon. Despite the substantial similarity between the two families of monolayers, the surface roughness of the primed silicon substrate allows for greater motional freedom of the chromophores in the monolayers. We discuss these findings in the context of the differences in substrate surface roughness and domain sizes as measured by atomic force microscopy (AFM).
