Efficient small molecule organic light-emitting diodes fabricated by brush-coating

White and RGB phosphorescent OLEDs were constructed by continuously brush-coating the hole-injection layer and small molecule light-emitting layer.

Shear Induced TiO2 Nano Structure Using Brush-Coating for Liquid Crystal Alignment

We have developed a very useful and cost-effective liquid crystal (LC) alignment layer of brush-coated TiO2 that is solution-processable for twisted nematic (TN) LC cells. TiO2 was prepared via the sol-gel method. The TiO2 solution was brush-coated on the substrate, followed by an annealing process. During the brush-coating process, a retracting force is generated on the deposited TiO solutions along the coating direction. The annealing process hardens the TiO2 and generates shearing stress arising from the retracting force along the brush-coating direction. The shearing stress created highly oriented nano/microstructure and uniformly aligned LCs with a stable pretilt angle of 0.6°. TN mode LC cells based on brush-coated TiO2 exhibited a performance of 12.5 ms of response and a threshold voltage of 1.8 V. Our brush-coated TiO2 incorporates two steps of the film deposition and alignment process into one step.

Synthetic Snow Substitutes as the Basis for the Recreation and Sports Facilities Sustainable Operation

Climatic changes and a series of snowy winters significantly affect the operation duration of winter sports centers, the basis of which is the stable snow cover presence. Modern technical capabilities make it possible to organize the recreation and sports facilities year-round work, where slopes equipped with materials and technological systems replacing natural resources are used as an alternative to natural snow cover. The artificial snow use history in different countries is presented. The aim of the study is to determine the feasibility of using synthetic coatings for organizing all-weather operation of sports facilities and winter specialization recreation. The reasons for the complexes demand in the real house vicinity, associated with the people of different ages desire to engage in their favorite type of activity, regardless of natural conditions, are determined. A modern social demand is the lever for using artificial snow substitutes on modern high-tech complexes. The possibility of using Snow Plast 365 modular brush coatings as a multifunctional material manufactured taking into account the various sports characteristics is considered. The demand for the Russian synthetic brush coating is shown, the area of ​​its use and the sales dynamics are indicated. To confirm the implemented projects’ visibility, the material contains drawings and diagrams.