A robust method for COC surfaces functionalization was developed for the first time by plasma polymerization. 1‐bromopropane in the vapor phase allowed the formation of a brominated deposit on COC surfaces, which stability, homogeneity and chemical nature were evaluated for different experimental conditions. The analysis of vapor phase was achieved by mass spectrometry to control brominated precursor fragmentation. Following nucleophilic exchange in the presence of NaN3 to convert the brominated surface to azide‐bearing surface, these modified COC were further functionalized with a fluorescent alkyne, via the copper‐catalyzed azide–alkyne cycloaddition reaction, i.e. “click” reaction. Surface modifications were characterized by water contact angle measurement, ellipsometry, electrochemical microscopy, XPS, IR and fluorescence microscopy. This new process was proved to be efficient and stable in time up to 7 days.
Front Cover: The deposition rate of porous thin films deposited by magnetron sputtering at oblique angles is described assuming two contributions: the incorporation of ballistic atoms and of thermalized, isotropically directed, sputtered atoms. A simple general formula is deduced and experimentally validated. Further details can be found in the article by Rafael Alvarez et. al. on page 571.Back Cover: This paper aims at identifying the mechanisms controlling the evolution of the thiol content and the chemical stability in aqueous solution of propanethiol plasma polymers. A detailed description combining film analysis and plasma diagnostic assisted by a theoretical approach is provided. Further details can be found in the article by Damien Thiry et. al. on page 606. Contents CommunicationA method based on plasma polymerization followed by surface ''click'' chemistry is developed for the robust functionalization of THV material. The THV surface is characterized in terms of stability, thickness, homogeneity and chemical composition. A fluorescent dye is then successfully immobilized on these surfaces by click reaction. This process opens the way to incorporate different functional groups on THV, for the development of THV analytical microchips. An implementation of easy to fabricate self-aligned selective emitter (SASE) process on large area multi-crystalline silicon solar cells has been successfully demonstrated. Several distinctive characteristics of this cell concept are discussed: improved passivation quality of emitter by dry etching and electrical properties of screen-printed contacts, which were used as mask during etch-back process. A comparison of SASE solar cell with reference cells comprised of a standard homogeneous emitter is given. Since, there is no need for alignment in the selective emitter concept; it appears to be an attractive solution for industrial cell fabrication. The deposition of stable amine-rich coatings is highly important for biomedical applications. The present investigation of cyclopropylamine plasma polymerization in pulsed and continuous wave discharges leads to the proposition of conditions at which amine-rich coatings exhibited relatively low thickness loss and NH x environment degradation in contact with water. Surface Functionalization by Optimization of Cyclopropylamine Plasma Polymerization toward Enhanced Layer Stability in Contact with Water
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