Covalent layer-by-layer thin films with charge-transfer chromophores: side chain engineering for efficient Ag+ ion recognition in aqueous solutions

Soft Matter ◽  
2018 ◽  
Vol 14 (44) ◽  
pp. 9055-9060 ◽  
Author(s):  
Hiroyuki Fujita ◽  
Tsuyoshi Michinobu
Keyword(s):  
Thin Films ◽  
Charge Transfer ◽  
Aqueous Solutions ◽  
Side Chain ◽  
Layer By Layer ◽  
Ion Recognition ◽  
Precursor Polymers

Covalent layer-by-layer films, fabricated by [2+2] cycloaddition–retroelectrocyclization, show different Ag+ ion recognition behaviors due to the side-chain groups of precursor polymers.

Stepwise fabrication of donor/acceptor thin films with a charge-transfer molecular wire motif

2016 ◽  
Vol 52 (97) ◽  
pp. 13983-13986 ◽  
Author(s):  
Yoshihiro Sekine ◽  
Taiga Yokoyama ◽  
Norihisa Hoshino ◽  
Manabu Ishizaki ◽  
Katsuhiko Kanaizuka ◽  
...  
Keyword(s):  
Thin Films ◽  
Charge Transfer ◽  
Layer By Layer ◽  
Molecular Wire ◽  
Layer Technique ◽  
Donor Acceptor ◽  
A Charge ◽  
Transfer Chain ◽  
Layer By Layer Technique ◽  
Chain Compound

Novel thin films composed of a donor/acceptor charge-transfer chain compound were fabricated by a layer-by-layer technique using complexation of a paddlewheel-type [Ru2II,II] complex with a DCNQI derivative on an ITO substrate with a pyridine-substituted phosphonate anchor.

New side-chain liquid crystalline terpolymers with anhydrous conductivity: effect of azobenzene substitution on light response and charge transfer

2021 ◽  
pp. 110246
Author(s):  
Sakinah Mohd Alauddin ◽  
A. Ramadan Ibrahim ◽  
Nurul Fadhilah Kamalul Aripin ◽  
Thamil Selvi Velayutham ◽  
Osama K. Abou-Zied ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Liquid Crystalline ◽  
Light Response ◽  
Side Chain

scholarly journals Modeling the Layer-by-Layer Growth of HKUST-1 Metal-Organic Framework Thin Films

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1631
Author(s):  
Qiang Zhang ◽  
Yohanes Pramudya ◽  
Wolfgang Wenzel ◽  
Christof Wöll
Keyword(s):  
Thin Films ◽  
Surface Roughness ◽  
Deposition Rate ◽  
Layer Growth ◽  
Coarse Grained ◽  
Structural Defects ◽  
Effect Of Temperature ◽  
Layer By Layer ◽  
Reactant Concentration ◽  
Metal Organic

Metal organic frameworks have emerged as an important new class of materials with many applications, such as sensing, gas separation, drug delivery. In many cases, their performance is limited by structural defects, including vacancies and domain boundaries. In the case of MOF thin films, surface roughness can also have a pronounced influence on MOF-based device properties. Presently, there is little systematic knowledge about optimal growth conditions with regard to optimal morphologies for specific applications. In this work, we simulate the layer-by-layer (LbL) growth of the HKUST-1 MOF as a function of temperature and reactant concentration using a coarse-grained model that permits detailed insights into the growth mechanism. This model helps to understand the morphological features of HKUST-1 grown under different conditions and can be used to predict and optimize the temperature for the purpose of controlling the crystal quality and yield. It was found that reactant concentration affects the mass deposition rate, while its effect on the crystallinity of the generated HKUST-1 film is less pronounced. In addition, the effect of temperature on the surface roughness of the film can be divided into three regimes. Temperatures in the range from 10 to 129 °C allow better control of surface roughness and film thickness, while film growth in the range of 129 to 182 °C is characterized by a lower mass deposition rate per cycle and rougher surfaces. Finally, for T larger than 182 °C, the film grows slower, but in a smooth fashion. Furthermore, the potential effect of temperature on the crystallinity of LbL-grown HKUST-1 was quantified. To obtain high crystallinity, the operating temperature should preferably not exceed 57 °C, with an optimum around 28 °C, which agrees with experimental observations.

Direct Layer-by-Layer Growth of Crystalline Ag-TCNQ Thin Films on Functionalized Au Substrate: How Critical Is the pH of Ag(I) Solution?

2020 ◽  
Vol 11 (24) ◽  
pp. 10548-10551
Author(s):  
Aswani Sathish Lathika ◽  
Shammi Rana ◽  
Anupam Prasoon ◽  
Pooja Sindhu ◽  
Debashree Roy ◽  
...  
Keyword(s):  
Thin Films ◽  
Layer Growth ◽  
Layer By Layer
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