|Title:||Early-Stage Growth Mechanism and Synthesis Conditions-Dependent Morphology of Nanocrystalline Bi Films Electrodeposited from Perchlorate Electrolyte|
Vorobjova, A. I.
Shimanovich, D. L.
|Keywords:||публикации ученых;electrochemical deposition;growth mechanism;morphology;perchlorate electrolyte|
|Publisher:||Multidisciplinary Digital Publishing Institute|
|Citation:||Early-Stage Growth Mechanism and Synthesis Conditions-Dependent Morphology of Nanocrystalline Bi Films Electrodeposited from Perchlorate Electrolyte / D. Tishkevich [et. al.] // Nanomaterials. – 2020. – Vol. 10. – P. 1245–1262. – DOI: 10.3390/nano10061245.|
|Abstract:||Bi nanocrystalline ﬁlms were formed from perchlorate electrolyte (PE) on Cu substrate via electrochemical deposition with diﬀerent duration and current densities. The microstructural, morphological properties, and elemental composition were studied using scanning electron microscopy (SEM), atomic force microscopy (AFM), and energy-dispersive X-ray microanalysis (EDX). The optimal range of current densities for Bi electrodeposition in PE using polarization measurements was demonstrated. For the ﬁrst time, it was shown and explained why, with a deposition duration of 1 s, co-deposition of Pb and Bi occurs. The correlation between synthesis conditions and chemical composition and microstructure for Bi ﬁlms was discussed. The analysis of the microstructure evolution revealed the changing mechanism of the ﬁlms’ growth from pillar-like (for Pb-rich phase) to layered granular form (for Bi) with deposition duration rising. This abnormal behavior is explained by the appearance of a strong Bi growth texture and coalescence eﬀects. The investigations of porosity showed that Bi ﬁlms have a closely-packed microstructure. The main stages and the growth mechanism of Bi ﬁlms in the galvanostatic regime in PE with a deposition duration of 1–30 s are proposed.|
|Appears in Collections:||Публикации в зарубежных изданиях|
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