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Title: Morphology of CdSe-based coatings formed on polyamide substrate
Authors: Janickis, Vitalijus
Petrašauskienė, Neringa
Žalenkienė, Skirma
Morkvėnaitė-Vilkončienė, Inga
Ramanavičius, Arūnas
Keywords: Polyamide
Potassium selenotrithionate
CdSe-based layers
Issue Date: 2018
Publisher: American Scientific Publishers
Citation: Janickis, V.; Petrašauskienė, N.; Žalenkienė, S.; Morkvėnaitė-Vilkončienė, I.; Ramanavičius, A. 2018. Morphology of CdSe-based coatings formed on polyamide substrate, Journal of nanoscience and nanotechnology 18(1): 604–613
Series/Report no.: 18;1
Abstract: Cadmium selenide (CdSe)-based layers were formed on the surface of polyamide 6 (PA) substrate film by treating PA film samples with potassium selenotrithionate (K2SeS2O6) solution (seleniumization) and then with cadmium (II) acetate, Cd(CH3COO)2, solution (cadmiumization). The morphology of CdSe- based layers was investigated by atomic force and scanning electron microscopies. It was determined that the formation of CdSe-based layers proceeds unevenly in the form of islands, which later tends to agglomerate. Therefore the surface of the layers formed is relatively uneven and rather rough. After seleniumization and cadmiumization procedures the average height of this layer have tendency to decrease from 337 after 1 h of seleniumization to 153 nm at 2.5 and 3.5 h of seleniumization. It was also determined that the RMS of formed layers slightly increases (from 32 to 42 nm) with the prolongation of PA seleniumization (from 1 to 2.5 hours) and it decreases (from 43 to 22 nm) with the increase of the temperature (from 50 °C to 70 °C) of seleniumized PA treatment by the solution containing Cd (II) salt. XPS data show that in coatings, substantial amounts of both cadmium hydroxide (Cd(OH)2) and cadmium oxide (CdO) are formed on the surface and within deeper layers of formed coatings. It was also determined that only a small fraction (∼0.1 % – 2 %) of cadmium selenide is present on the surface of formed coating after seleniumization and cadmiumization, while within in the deeper layers the concentrations of both Cd and Se were much higher and the fractions of Cd(OH)2 and CdO decreased.
ISSN: 1533-4880
Appears in Collections:Moksliniai straipsniai / Research articles

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