An Investigation of Antibacterial and Surface Properties of the Germanium Nano Layer Deposited on Organic Substrates

Zerrin PAT
2.561 670


The element germanium is an important material for the solid state device fabrication and antibacterial applications. It has been widely used for the optoelectronic applications. Polyethylene terephthalate (PET) materials is a organic substrate materials with high transparency. It is used to in flexible and bendable electronic device in present and future. In this study, antibacterial and surface properties of the germanium layer deposition with nano thicknesses were investigated. Germanium material was successfully deposited on PET substrate and antibacterial properties against to gram positive  Staphylococcus aureus (ATCC29213)  and gram negative Escherichia coli (ATCC11775) bacterias were tested. Germanium layer thicknesses was measured as 200 nm and grain size was calculated about 40 nm. Crystal formations of the deposited layer were determined as  (022), (133) and (224) formation. According to to XRD and EDX analysis, it found that deposited germanium layer was not contain any impurity and  chemical bonds to atoms of PET substrate. Moreover, surface analysis of deposited PET sample were realized by scanning electron microscopy and atomic force microscopy. Furthermore, surface roughness, rain height distribution, contact angle, transparency and absorbance values were determined in this paper.


Germanium; Polyethylene terephthalate; Antibacterial; Surface Properties

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