Optical properties of ZnS/Ag/ZnS transparent conductive sandwich structures investigated by spectroscopic ellipsometry

Zolanvari, A.; Norouzi, R.; Sadeghi, Hossein

doi:10.1007/s10854-015-2948-9

Cited by 13 publications

(6 citation statements)

References 20 publications

(23 reference statements)

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“…Transparent conducting (TC) films are extensively used for a variety of applications in optoelectronic devices, such as light emitting diodes (LED), energy-efficient windows, solar cells, thin film transistors and flat panel displays [1][2][3][4]. Indium tin oxide (ITO), as the most widely used TC material, has been investigated extensively.…”

Section: Introductionmentioning

confidence: 99%

Photoelectric properties of ZnS/Au/ZnS transparent conductive tri-layer films

Wang

2017

Optics & Laser Technology

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Section: Introductionmentioning

confidence: 99%

Photoelectric properties of ZnS/Au/ZnS transparent conductive tri-layer films

Wang

2017

Optics & Laser Technology

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“…The optical constants and thicknesses of the films deposited at various RF power values were estimated using spectroscopic ellipsometry. The measured ellipsometric parameters are usually expressed as the polarization angle,  , and phase delay,  [40], which occur when the measurement beam interacts with the sample. In the present study, an analysis of the ellipsometric data was performed using the Delta Psi software and the double layer Sellmeier model [16] (Fig.…”

Section: Fig 4(a) Optical Transmittance Spectra and (B) Tauc Plots Fmentioning

confidence: 99%

Effect of RF Power on the Structural and Optical Properties of Zinc Sulfide Films

Chalana

Sankararaman

Prabhu

et al. 2017

JOM

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Zinc sulfide (ZnS) films were prepared via a radio frequency (RF) magnetron sputtering technique using different RF powers (100, 120, 150 and 180 W), and the effects of the RF power on the structural and optical properties of the films were studied using X-ray diffraction, micro-Raman spectroscopy, atomic force microscopy, ultraviolet-visible spectroscopy, spectroscopic ellipsometry and laser photoluminescence spectroscopy. It was found that the RF power has an important impact on the predominant phase formation and crystallinity of the ZnS films. The film thickness, refractive index, and film to bulk relative density increase systematically with an increase in the RF power. Among the various RF power values investigated, 150 W was optimal for the growth of highly crystalline ZnS films with a predominance of the cubic phase and enhanced photoluminescence emissions.

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“…22 By optimizing these structures, a selective transparent effect can be obtained in the visible region by suppressing reflection from the metal layer. 23 ITO/metal/ITO multilayers structures have gained a lot of interest to fulfill the growing need for high-performance TCO electrodes. For these multilayer structures, interlayers such as Au, Ag, and Cu have recently been stated to have a transmittance of more than 87% and sheet resistance of less than 10 Ω/□.…”

Section: Introductionmentioning

confidence: 99%

Enhanced optoelectronic properties of magnetron sputtered ITO/Ag/ITO multilayers by electro-annealing

Uyanik

Turkoglu

Köseoğlu

et al. 2022

Journal of Vacuum Science &Amp; Technology B

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Indium tin oxide/silver/indium tin oxide (ITO/Ag/ITO) multilayers have attracted much attention to fulfill the growing need for high-performance transparent conducting oxide electrodes. To make these transparent multilayers work better, electro-annealing, which is a method of self-heating by electric current, can be effective. Moreover, the effect of current on ITO/Ag/ITO multilayers should be investigated to make sure that electronic devices will be reliable over their lifetime. In this study, ITO/Ag/ITO multilayer electrodes with varying Ag thicknesses were grown by DC magnetron sputtering at room temperature. Structural, optical, and electrical properties of these multilayers were investigated before and after electro-annealing. Measurement results revealed that improved optical transmittance and sheet resistance can be obtained by the optimization of Ag thickness for the as-grown ITO/Ag/ITO layers. The highest figure of merit (FoM) value of 17.37 × 10−3 Ω−1 with optical transmittance of 85.15% in the visible region and sheet resistance of 11.54 Ω/□ was obtained for the Ag thickness of 16.5 nm for as-grown samples. The electro-annealing of as-grown ITO/Ag/ITO multilayers led to improved optical behavior of the multilayer structure over a wide spectral range, especially in the near-infrared range. Electro-annealing also provided an improvement in the crystallinity and sheet resistance of the electrodes. The improvement of the electrical and optical properties of the structure enabled a FoM of 23.07 × 10−3 Ω−1 with the optical transmittance of 86.80% in the visible region and sheet resistance of 10.52 Ω/□. The findings of this work provide proper knowledge of the properties of ITO/Ag/ITO multilayers under electrical current and suggest that the overall performance of the multilayers can be improved by the electro-annealing process.

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Optical properties of ZnS/Ag/ZnS transparent conductive sandwich structures investigated by spectroscopic ellipsometry

Cited by 13 publications

References 20 publications

Photoelectric properties of ZnS/Au/ZnS transparent conductive tri-layer films

Photoelectric properties of ZnS/Au/ZnS transparent conductive tri-layer films

Effect of RF Power on the Structural and Optical Properties of Zinc Sulfide Films

Enhanced optoelectronic properties of magnetron sputtered ITO/Ag/ITO multilayers by electro-annealing

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