Increased thermal stability of Al-doped ZnO-based transparent conducting electrodes employing ultra-thin Au and Cu layers

T. Dimopoulos, G. Z. Radnoczi, Z. Horváth, H. Brückl

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The paper examines the influence of heating in air on the structural, electrical and optical properties of Al-doped ZnO (AZO)-based transparent conducting electrodes employing ultra-thin Au and Cu layers, sputter-deposited onto unheated glass substrates. The results are compared with the ones obtained for single AZO layers. For these, the quality factor in the visible wavelength range degrades continuously with the heating temperature, as the result of increasing sheet resistance. Contrary to this behavior, symmetric AZO/Au/AZO and AZO/Cu/AZO trilayers improve their quality factor for temperatures up to 250°C. At the same time, these trilayers offer 4-times lower roughness than single AZO layers of comparable sheet resistance, which can be a significant advantage when active optoelectronic or solar-cell device layers are to be deposited on the transparent electrode.

Original languageEnglish
Pages (from-to)5222-5226
Number of pages5
JournalThin Solid Films
Volume520
Issue number16
DOIs
Publication statusPublished - Jun 1 2012

Fingerprint

Sheet resistance
Thermodynamic stability
thermal stability
Heating
conduction
Electrodes
electrodes
Optoelectronic devices
Structural properties
Q factors
Solar cells
Electric properties
Optical properties
Surface roughness
Glass
Wavelength
Temperature
heating
Substrates
Air

Keywords

  • Opto-electronics
  • Solar cells
  • Sputtering
  • Thermal stability
  • Transparent conducting electrode
  • Ultra-thin metal
  • Zinc oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Increased thermal stability of Al-doped ZnO-based transparent conducting electrodes employing ultra-thin Au and Cu layers. / Dimopoulos, T.; Radnoczi, G. Z.; Horváth, Z.; Brückl, H.

In: Thin Solid Films, Vol. 520, No. 16, 01.06.2012, p. 5222-5226.

Research output: Contribution to journalArticle

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