Low-molecular weight polydimethylsiloxane, a versatile performance enhancer for the solution processed indium tin oxide transparent electrode

Deuk Kyu Hwang, Mirnmoy Misra, Jae Min Myoung, Tae Il Lee

Research output: Contribution to journalArticle

Abstract

An ultra-thin low molecular weight (LMW) polydimethylsiloxane (PDMS) layer is introduced as an agent to enhance the electrical conductivity, transmittance, and anti-fogging function of a solution-processed indium tin oxide (ITO) thin film transparent electrode. Under argon plasma, Si[sbnd]C bonds of LMW PDMS are easily broken and become Si dangling bonds, which consumes oxygen from the ITO thin film, producing oxygen vacancies; at the same time, these bonds turn into SiOx and serve as an optical layer to reduce the reflectivity of the thin film. As a result, the ITO's figure of merit, which is a performance index for transparent electrodes, increased by more than 10 times by the adoption of the agent LMW PDMS. Additionally, the SiOx layer hydrophilizes the ITO surface so as to reinforce its anti-fogging ability. Using this SiOx layer, an anti-fogging smart ITO glass was fabricated, which showed twice faster ability to eliminate the haze due to dew condensation on the ITO surface compared to the conventional ITO thin film.

Original languageEnglish
Article number144308
JournalApplied Surface Science
Volume503
DOIs
Publication statusPublished - 2020 Feb 15

Fingerprint

Polydimethylsiloxane
low molecular weights
Tin oxides
indium oxides
Indium
tin oxides
Molecular weight
Electrodes
electrodes
Oxide films
Thin films
thin films
ITO glass
dew
Dangling bonds
Argon
Oxygen vacancies
haze
argon plasma
oxygen

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

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abstract = "An ultra-thin low molecular weight (LMW) polydimethylsiloxane (PDMS) layer is introduced as an agent to enhance the electrical conductivity, transmittance, and anti-fogging function of a solution-processed indium tin oxide (ITO) thin film transparent electrode. Under argon plasma, Si[sbnd]C bonds of LMW PDMS are easily broken and become Si dangling bonds, which consumes oxygen from the ITO thin film, producing oxygen vacancies; at the same time, these bonds turn into SiOx and serve as an optical layer to reduce the reflectivity of the thin film. As a result, the ITO's figure of merit, which is a performance index for transparent electrodes, increased by more than 10 times by the adoption of the agent LMW PDMS. Additionally, the SiOx layer hydrophilizes the ITO surface so as to reinforce its anti-fogging ability. Using this SiOx layer, an anti-fogging smart ITO glass was fabricated, which showed twice faster ability to eliminate the haze due to dew condensation on the ITO surface compared to the conventional ITO thin film.",
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Low-molecular weight polydimethylsiloxane, a versatile performance enhancer for the solution processed indium tin oxide transparent electrode. / Hwang, Deuk Kyu; Misra, Mirnmoy; Myoung, Jae Min; Il Lee, Tae.

In: Applied Surface Science, Vol. 503, 144308, 15.02.2020.

Research output: Contribution to journalArticle

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