Synthesis and characterization of polycrystalline Sn and SnO2 films with wire morphologies

Clara Santato, Carmen M. López, Kyoung Shin Choi

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

A new electrodeposition condition has been developed to prepare films composed of Sn wires, using dimethyl sulfoxide (DMSO) as a plating medium. The morphology of Sn deposits varied significantly depending on the aging time of the solution as well as the amount of electric charge passed through the cell prior to deposition. The wire morphology was obtained only when the DMSO solution containing 0.1 M SnCl2 and 0.5 M NaNO3 was aged for 2 weeks at room temperature and 20 C of electric charge were passed through the cell (-1.8 V vs. Ag/AgCl at the working electrode) before deposition. Otherwise, spherical agglomerations of Sn particles that resemble the shape of cauliflowers were obtained. Electrospray ionization mass spectrometry revealed that the combination of the aging and passing electric charge processes increased the amount of tetravalent tin ions and the chloride to tin ratio in the plating medium, resulting in the formation of SnCl62 - species without which Sn wires cannot be formed. The electrochemically deposited Sn films were converted to SnO2 films by thermal oxidation while preserving the original morphologies. The SnO2 films with wire morphology exhibited superior photoelectrochemical performances compared to the cauliflower morphology although both of these morphologies contain SnO2 nanoparticles of similar sizes (6-15 nm). Optimizing conditions to control the fine details of wire growth is expected to create opportunities to investigate and exploit wire morphologies of Sn and SnO2 to construct efficient and cost-effective electrode materials for Li-ion batteries and photoelectrochemical cells.

Original languageEnglish
Pages (from-to)1519-1524
Number of pages6
JournalElectrochemistry Communications
Volume9
Issue number7
DOIs
Publication statusPublished - Jul 2007
Externally publishedYes

Fingerprint

Wire
Electric charge
Dimethyl sulfoxide
Tin
Dimethyl Sulfoxide
Plating
Aging of materials
Photoelectrochemical cells
Electrospray ionization
Electrodes
Electrodeposition
Mass spectrometry
Chlorides
Deposits
Agglomeration
Ions
Nanoparticles
Oxidation
Costs
Temperature

Keywords

  • Electrodeposition
  • Photocurrent
  • Polycrystalline films
  • Tin
  • Tin oxide
  • Wire

ASJC Scopus subject areas

  • Electrochemistry

Cite this

Synthesis and characterization of polycrystalline Sn and SnO2 films with wire morphologies. / Santato, Clara; López, Carmen M.; Choi, Kyoung Shin.

In: Electrochemistry Communications, Vol. 9, No. 7, 07.2007, p. 1519-1524.

Research output: Contribution to journalArticle

@article{888c1e2368f44a4c88dae41e10f2e967,
title = "Synthesis and characterization of polycrystalline Sn and SnO2 films with wire morphologies",
abstract = "A new electrodeposition condition has been developed to prepare films composed of Sn wires, using dimethyl sulfoxide (DMSO) as a plating medium. The morphology of Sn deposits varied significantly depending on the aging time of the solution as well as the amount of electric charge passed through the cell prior to deposition. The wire morphology was obtained only when the DMSO solution containing 0.1 M SnCl2 and 0.5 M NaNO3 was aged for 2 weeks at room temperature and 20 C of electric charge were passed through the cell (-1.8 V vs. Ag/AgCl at the working electrode) before deposition. Otherwise, spherical agglomerations of Sn particles that resemble the shape of cauliflowers were obtained. Electrospray ionization mass spectrometry revealed that the combination of the aging and passing electric charge processes increased the amount of tetravalent tin ions and the chloride to tin ratio in the plating medium, resulting in the formation of SnCl62 - species without which Sn wires cannot be formed. The electrochemically deposited Sn films were converted to SnO2 films by thermal oxidation while preserving the original morphologies. The SnO2 films with wire morphology exhibited superior photoelectrochemical performances compared to the cauliflower morphology although both of these morphologies contain SnO2 nanoparticles of similar sizes (6-15 nm). Optimizing conditions to control the fine details of wire growth is expected to create opportunities to investigate and exploit wire morphologies of Sn and SnO2 to construct efficient and cost-effective electrode materials for Li-ion batteries and photoelectrochemical cells.",
keywords = "Electrodeposition, Photocurrent, Polycrystalline films, Tin, Tin oxide, Wire",
author = "Clara Santato and L{\'o}pez, {Carmen M.} and Choi, {Kyoung Shin}",
year = "2007",
month = "7",
doi = "10.1016/j.elecom.2007.02.006",
language = "English",
volume = "9",
pages = "1519--1524",
journal = "Electrochemistry Communications",
issn = "1388-2481",
publisher = "Elsevier Inc.",
number = "7",

}

TY - JOUR

T1 - Synthesis and characterization of polycrystalline Sn and SnO2 films with wire morphologies

AU - Santato, Clara

AU - López, Carmen M.

AU - Choi, Kyoung Shin

PY - 2007/7

Y1 - 2007/7

N2 - A new electrodeposition condition has been developed to prepare films composed of Sn wires, using dimethyl sulfoxide (DMSO) as a plating medium. The morphology of Sn deposits varied significantly depending on the aging time of the solution as well as the amount of electric charge passed through the cell prior to deposition. The wire morphology was obtained only when the DMSO solution containing 0.1 M SnCl2 and 0.5 M NaNO3 was aged for 2 weeks at room temperature and 20 C of electric charge were passed through the cell (-1.8 V vs. Ag/AgCl at the working electrode) before deposition. Otherwise, spherical agglomerations of Sn particles that resemble the shape of cauliflowers were obtained. Electrospray ionization mass spectrometry revealed that the combination of the aging and passing electric charge processes increased the amount of tetravalent tin ions and the chloride to tin ratio in the plating medium, resulting in the formation of SnCl62 - species without which Sn wires cannot be formed. The electrochemically deposited Sn films were converted to SnO2 films by thermal oxidation while preserving the original morphologies. The SnO2 films with wire morphology exhibited superior photoelectrochemical performances compared to the cauliflower morphology although both of these morphologies contain SnO2 nanoparticles of similar sizes (6-15 nm). Optimizing conditions to control the fine details of wire growth is expected to create opportunities to investigate and exploit wire morphologies of Sn and SnO2 to construct efficient and cost-effective electrode materials for Li-ion batteries and photoelectrochemical cells.

AB - A new electrodeposition condition has been developed to prepare films composed of Sn wires, using dimethyl sulfoxide (DMSO) as a plating medium. The morphology of Sn deposits varied significantly depending on the aging time of the solution as well as the amount of electric charge passed through the cell prior to deposition. The wire morphology was obtained only when the DMSO solution containing 0.1 M SnCl2 and 0.5 M NaNO3 was aged for 2 weeks at room temperature and 20 C of electric charge were passed through the cell (-1.8 V vs. Ag/AgCl at the working electrode) before deposition. Otherwise, spherical agglomerations of Sn particles that resemble the shape of cauliflowers were obtained. Electrospray ionization mass spectrometry revealed that the combination of the aging and passing electric charge processes increased the amount of tetravalent tin ions and the chloride to tin ratio in the plating medium, resulting in the formation of SnCl62 - species without which Sn wires cannot be formed. The electrochemically deposited Sn films were converted to SnO2 films by thermal oxidation while preserving the original morphologies. The SnO2 films with wire morphology exhibited superior photoelectrochemical performances compared to the cauliflower morphology although both of these morphologies contain SnO2 nanoparticles of similar sizes (6-15 nm). Optimizing conditions to control the fine details of wire growth is expected to create opportunities to investigate and exploit wire morphologies of Sn and SnO2 to construct efficient and cost-effective electrode materials for Li-ion batteries and photoelectrochemical cells.

KW - Electrodeposition

KW - Photocurrent

KW - Polycrystalline films

KW - Tin

KW - Tin oxide

KW - Wire

UR - http://www.scopus.com/inward/record.url?scp=34250160500&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250160500&partnerID=8YFLogxK

U2 - 10.1016/j.elecom.2007.02.006

DO - 10.1016/j.elecom.2007.02.006

M3 - Article

AN - SCOPUS:34250160500

VL - 9

SP - 1519

EP - 1524

JO - Electrochemistry Communications

JF - Electrochemistry Communications

SN - 1388-2481

IS - 7

ER -