Electrochemical quartz crystal microbalance study on cyclic electrodeposition of PbS thin-films

Heini Saloniemi (Corresponding Author), Marianna Kemell, Mikko Ritala, Markku Leskelä

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Abstract

Electrochemical quartz crystal microbalance combined with cyclic voltammetry was used to study the electrodeposition of PbS thin-films on Au surface. The electrodeposition was carried out by cycling between two potentials with voltage scan rates of 0.1 and 0.01 V/s. In addition, the electrochemical behaviour of PbS film and the related precursors, PbEDTA2− and HS were studied separately. It was found that the reduction of PbEDTA2− occurred at a more positive potential on the PbS surface than on the Au surface. Similarly, HS oxidised at a more negative potential on the PbS than on the Au surface. Therefore, the deposition of PbS was proposed to occur by two mechanisms. The first mechanism includes the reduction of PbEDTA2− to elemental lead which during the oxidation reacts with HS−. In the other mechanism, PbS surface induces the chemical reaction between PbEDTA2− and HS. The electrodeposited PbS is stable in the potential range of −1.2 to −0.2 V vs. Ag/AgCl.
Original languageEnglish
Pages (from-to)32-40
Number of pages9
JournalThin Solid Films
Volume386
Issue number1
DOIs
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed

Fingerprint

Quartz crystal microbalances
quartz crystals
Electrodeposition
electrodeposition
microbalances
Thin films
thin films
Cyclic voltammetry
Chemical reactions
chemical reactions
Lead
Oxidation
oxidation
cycles
Electric potential
electric potential

Cite this

Saloniemi, Heini ; Kemell, Marianna ; Ritala, Mikko ; Leskelä, Markku. / Electrochemical quartz crystal microbalance study on cyclic electrodeposition of PbS thin-films. In: Thin Solid Films. 2001 ; Vol. 386, No. 1. pp. 32-40.
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title = "Electrochemical quartz crystal microbalance study on cyclic electrodeposition of PbS thin-films",
abstract = "Electrochemical quartz crystal microbalance combined with cyclic voltammetry was used to study the electrodeposition of PbS thin-films on Au surface. The electrodeposition was carried out by cycling between two potentials with voltage scan rates of 0.1 and 0.01 V/s. In addition, the electrochemical behaviour of PbS film and the related precursors, PbEDTA2− and HS− were studied separately. It was found that the reduction of PbEDTA2− occurred at a more positive potential on the PbS surface than on the Au surface. Similarly, HS− oxidised at a more negative potential on the PbS than on the Au surface. Therefore, the deposition of PbS was proposed to occur by two mechanisms. The first mechanism includes the reduction of PbEDTA2− to elemental lead which during the oxidation reacts with HS−. In the other mechanism, PbS surface induces the chemical reaction between PbEDTA2− and HS. The electrodeposited PbS is stable in the potential range of −1.2 to −0.2 V vs. Ag/AgCl.",
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Electrochemical quartz crystal microbalance study on cyclic electrodeposition of PbS thin-films. / Saloniemi, Heini (Corresponding Author); Kemell, Marianna; Ritala, Mikko; Leskelä, Markku.

In: Thin Solid Films, Vol. 386, No. 1, 2001, p. 32-40.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Electrochemical quartz crystal microbalance study on cyclic electrodeposition of PbS thin-films

AU - Saloniemi, Heini

AU - Kemell, Marianna

AU - Ritala, Mikko

AU - Leskelä, Markku

PY - 2001

Y1 - 2001

N2 - Electrochemical quartz crystal microbalance combined with cyclic voltammetry was used to study the electrodeposition of PbS thin-films on Au surface. The electrodeposition was carried out by cycling between two potentials with voltage scan rates of 0.1 and 0.01 V/s. In addition, the electrochemical behaviour of PbS film and the related precursors, PbEDTA2− and HS− were studied separately. It was found that the reduction of PbEDTA2− occurred at a more positive potential on the PbS surface than on the Au surface. Similarly, HS− oxidised at a more negative potential on the PbS than on the Au surface. Therefore, the deposition of PbS was proposed to occur by two mechanisms. The first mechanism includes the reduction of PbEDTA2− to elemental lead which during the oxidation reacts with HS−. In the other mechanism, PbS surface induces the chemical reaction between PbEDTA2− and HS. The electrodeposited PbS is stable in the potential range of −1.2 to −0.2 V vs. Ag/AgCl.

AB - Electrochemical quartz crystal microbalance combined with cyclic voltammetry was used to study the electrodeposition of PbS thin-films on Au surface. The electrodeposition was carried out by cycling between two potentials with voltage scan rates of 0.1 and 0.01 V/s. In addition, the electrochemical behaviour of PbS film and the related precursors, PbEDTA2− and HS− were studied separately. It was found that the reduction of PbEDTA2− occurred at a more positive potential on the PbS surface than on the Au surface. Similarly, HS− oxidised at a more negative potential on the PbS than on the Au surface. Therefore, the deposition of PbS was proposed to occur by two mechanisms. The first mechanism includes the reduction of PbEDTA2− to elemental lead which during the oxidation reacts with HS−. In the other mechanism, PbS surface induces the chemical reaction between PbEDTA2− and HS. The electrodeposited PbS is stable in the potential range of −1.2 to −0.2 V vs. Ag/AgCl.

U2 - 10.1016/S0040-6090(01)00813-6

DO - 10.1016/S0040-6090(01)00813-6

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JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

IS - 1

ER -