TY - JOUR
T1 - Preparation and Characterization of Electrochemical Deposition Cobalt Triantimonide (CoSb3) Thick Film
T2 - Effects of Polyvinyl Alcohol (PVA) as an Additive
AU - Sabran, Nuur Syahidah
AU - Fadzallah, Iman Aris
AU - Ono, Takahito
AU - Said, Suhana Mohd
AU - Sabri, Mohd Faizul Mohd
N1 - Funding Information:
This project was financially supported by University Malaya (PG120-2016A & GPF003A-2018). Part of this work was performed in the Micro/Nanomachining Research Education Center (MNC) of Tohoku University, Japan under a Japan Student Services Organization (JASSO) scholarship. Nuur Syahidah Sabran would like to thank the Ministry of Education of Malaysia for the scholarship (MyPhD) awarded.
Funding Information:
This project was financially supported by University Malaya (PG120-2016A & GPF003A-2018). Part of this work was performed in the Micro/Nanomachining Research Education Center (MNC) of Tohoku University, Japan under a Japan Student Services Organization (JASSO) scholarship. Nuur Syahidah Sabran would like to thank the Ministry of Education of Malaysia for the scholarship (MyPhD) awarded.
Publisher Copyright:
© 2019, The Minerals, Metals & Materials Society.
PY - 2019/8/15
Y1 - 2019/8/15
N2 - A thick film of cobalt triantimonide (CoSb3) skutterudites was successfully synthesized via electrochemical deposition by using an electrolyte that contains antimony (Sb3+) and cobalt (Co2+) ions in a weak acid solution in the presence of polyvinyl alcohol (PVA) as an additive. The process was conducted under a potentiostatic condition of − 1000 mV versus Ag/AgCl at room temperature. Two hours (2 h) of electrochemical deposition produced a 13 μm assisted PVA CoSb3 thick film. In comparison, most studied electrochemical deposition of CoSb3 skutterudites thin films is in the thickness range of 700–800 nm. The morphological studies of the films appeared to have a cauliflower-like structure with a presence of fern-like dendrite for a non-PVA electrolyte due to the limitation of ion diffusion in the nucleation growth area. The absence of dendrite was observed in the assisted PVA films, which demonstrated an enhanced ion diffusion in the vicinity with a better stoichiometric ratio for Co:Sb of 1:3 thick film.
AB - A thick film of cobalt triantimonide (CoSb3) skutterudites was successfully synthesized via electrochemical deposition by using an electrolyte that contains antimony (Sb3+) and cobalt (Co2+) ions in a weak acid solution in the presence of polyvinyl alcohol (PVA) as an additive. The process was conducted under a potentiostatic condition of − 1000 mV versus Ag/AgCl at room temperature. Two hours (2 h) of electrochemical deposition produced a 13 μm assisted PVA CoSb3 thick film. In comparison, most studied electrochemical deposition of CoSb3 skutterudites thin films is in the thickness range of 700–800 nm. The morphological studies of the films appeared to have a cauliflower-like structure with a presence of fern-like dendrite for a non-PVA electrolyte due to the limitation of ion diffusion in the nucleation growth area. The absence of dendrite was observed in the assisted PVA films, which demonstrated an enhanced ion diffusion in the vicinity with a better stoichiometric ratio for Co:Sb of 1:3 thick film.
KW - PVA
KW - Skutterudite
KW - additive
KW - electrodeposition
KW - thick film
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U2 - 10.1007/s11664-019-07295-3
DO - 10.1007/s11664-019-07295-3
M3 - Article
AN - SCOPUS:85066811335
SN - 0361-5235
VL - 48
SP - 5003
EP - 5011
JO - Journal of Electronic Materials
JF - Journal of Electronic Materials
IS - 8
ER -