EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES - EUROMAT 2021

Optoelectronic devices' progress is driven by the development of new donor-acceptor (D-A) systems. The number of possible combinations of donor and acceptor building blocks allows the design of compounds with desired properties. Previous studies show that the phenothiazine molecule is an extremely valuable electron-donor (D) unit due to the presence of electron-rich sulfur and nitrogen...

Polymers bearing stimuli-induced reversible chemical bonds and physical interactions have drawn increasing interest for smart materials in different fields of material science addressing daily life applications, i.e. fiber reinforced plastics (FRP). To achieve good mechanical stabilities thermosetting polymer matrices are required for FRPs yielding composite materials that , once produced, can...

Water pollution by organic chemicals is a rapidly growing problem. Classical water treatment methods are associated with certain risks in the decomposition of organic dyes. Therefore, the need for new solutions emerges which combine innovations and classical methods, to reduce the risks. The possible solution could be semiconductor photocatalysis, which can also be applied in other areas, such...

Wearable sensors have transformed the ability to monitor human physiology not only in laboratory conditions but also during everyday activity. They integrate onto textiles or place directly on human skin and do not interfere with natural movement patterns during data sampling. Specifically, skin-wearable electronics must be thin and stretchable enough to closely adhere and conform to the skin...

The continuous dynamic development of organic electronics has resulted in recent years, and new material solutions are still required for the construction of various devices, including photovoltaic (PV) cells. Among the new generation of PV devices, perovskite solar cells (PSCs) deserve special attention. The efficiency of PSCs increased from 3.9% in 2009 to 24% in 2019. Important elements of...

Recently, bottle-brush polymers are widely used for the studies of hydration lubrication due to their unique mechanical and rheological properties, which can be controlled by varying the backbone, the length of the side chain, and the number of branches per molecule or the grafting density. Furthermore, the lubricating layer is applied for anti-icing surfaces which can ice moving more...

Thin films based on SiO2 and SiO2-P2O5 doped by IV-VI quantum dots were synthesized by sol-gel method, spin coating technique. The deposition process took place on glass, ITO (indium tin oxide) deposited on glass and silicon substrates, respectively. Different parameters such as precursor composition, gelation time, substrate rotation rate, number of deposited layers and pH of the precursor...

In the growing field of nanotechnology there is an increasing need to develop production methods for nanoparticles that provide control and reproducibility, as well as versatility and ease of use. The spark discharge generator (SDG) is a flexible technique that meets these specifications, in the entire nanometer range (1–100 nm), and beyond. The technique is based on the production of metallic...

Abstract

A novel natural biomass pollen-derived multicolor barcode is fabricated by depositing the quantum dots (QDs) on the monodisperse sunflower pollens through a layer-by-layer process. Taking advantage of the exquisite prickly surface morphology and an intrinsic high surface-to-volume ratio of the pollens, the resultant barcodes exhibited a much stronger fluorescence signal. Besides,...

We report the synthesis of silver (Ag) nano particles supported on zinc oxide (ZnO) thin films using a spray pyrolysis method.Thus,the present study focused on the low cost synthesis of these silver-zinc oxide (Ag-ZnO) nanoparticles which will have a broad-spectrum antibacterial activity against Staphylococcus epidermis.Ag nano particles supported on ZnO of varied molar ratios...