In this study, three flexible metal-semiconductor-metal ultraviolet photodetectors are fabricated on the FR4 fiberglass substrate based on the porous zinc oxide by radiofrequency sputtering. Their copper electrodes were created by printed circuit board, a simple and cheap method. Here, the effect of porosity on the photodetector parameters is discussed.
View Article and Find Full Text PDFIn this study, the effect of electrode shape difference on the height of the Schottky barrier and the electric field in flexible photodiodes (PDs) has been investigated. For this purpose, three different electrode designs were prepared on three flexible FR4 layers that were coated with Zinc Oxide (ZnO). The printing circuit board (PCB) method was used to create these copper electrodes.
View Article and Find Full Text PDFIn this paper, we report a new method to grow graphene monolayers directly on a quartz substrate using chemical vapor deposition (CVD), without using any catalyst. For this purpose, ethanol as the precursor and a quartz substrate were used for growth, which controlled the growth process and the formation of an ultrathin layer of graphene. In this project, with use of plasma-enhanced chemical vapor deposition (PECVD), the substrate was cleaned by applying the cold plasma with the aim of improving the quality of the graphene monolayer grown.
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