Development of Silver-Based Multilayer Coating Electrodes with Low Resistance  for Use in Flat Panel Displays

Aoshima, Yuki; Miyazaki, M.; Sato, Kazuo; Akao, Yasuhiko; Takaki, S.; Adachi, Kunihiko

doi:10.1143/jjap.39.4884

Cited by 46 publications

(16 citation statements)

References 15 publications

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“…emitting diodes (OLEDs) [1], optical devices (liquid crystal displays) [2], electroluminescent devices [3], sensors [4], DNA detection [5], solar applications [6], electrodes [7]. Many of these applications require a self-assembled monolayer (SAM) to form on ITO substrates.…”

Section: Introductionmentioning

confidence: 99%

Influence of indium–tin oxide surface structure on the ordering and coverage of carboxylic acid and thiol monolayers

Cerruti¹,

Rhodes²,

Losego³

et al. 2007

J. Phys. D: Appl. Phys.

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This paper analyses the variability of self-assembled monolayers (SAMs) formation on ITO depending on the substrate surface features. In particular, we report on the formation of carboxylic acid-and thiol-based SAMs on two lots of commercially prepared indium-tin oxide (ITO) thin films. Contact angle measurements, electrochemical experiments, and near-edge x-ray absorption fine structure (NEXAFS) spectroscopy showed that the quality of monolayers formed differed substantially between the two ITO batches. Only one of the two ITO substrates was capable of forming well-organized thiol-and carboxylic acid-based SAMs. In order to rationalize these observations, atomic force microscopy and x-ray diffraction analyses were carried out, and SAMs were prepared on ITO substrates fabricated by sputtering in our laboratories. An attempt was made to influence the film microstructure and surface morphology by varying substrate temperatures during ITO deposition. Good-quality thiol and carboxylic acid SAMs were obtained on one of the ITO substrates prepared in-house. While our characterization could not single out conclusively one specific parameter in ITO surface structure that could be responsible for good SAMs formation, we could point out homogeneous surface morphology as a relevant factor for the quality of the SAMs. Evidence was also found for ITO crystallographic orientation to be a parameter influencing SAMs organization. M This article includes supplementary information in the online edition.

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Section: Introductionmentioning

confidence: 99%

Influence of indium–tin oxide surface structure on the ordering and coverage of carboxylic acid and thiol monolayers

Cerruti¹,

Rhodes²,

Losego³

et al. 2007

J. Phys. D: Appl. Phys.

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“…Annealing after deposition was effective in increasing the transparency and decreasing the resistivity of all coatings. Annealing presumably promotes the crystallization of Ag layers and the oxidation of ZnO layer, so that the electric conductivity and transparency of the coatings would be improved [11].…”

Section: Structure and Morphologymentioning

confidence: 99%

Effect of Surface Plasmons on Optical and Electrical Properties of Multilayer ZnO∕Ag∕ZnO Thin Film

Venugopal¹,

Varma²,

Mitra³

2011

AIP Conference Proceedings

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The effect of a Silver layer on the optical and electrical properties of ZnO (Zinc Oxide)/Ag(silver)/ZnO(Zinc Oxide)/glass multilayer structure have been investigated. ZnO thin film of thickness of 80 nm has been deposited using Spray Pyrolysis on glass substrate. Prior to deposition of another layer of ZnO of about same thickness like the previous one, a thin layer of Ag with thicknesses varying from 0.5 to 10 nm have been deposited using Vacuum Deposition. We have correlated the properties of thin film with thickness and morphology of silver layer. It has been observed that optical transparency of ZnO/Ag/ZnO thin film on glass substrate greatly enhanced compared to Ag/glass and Ag/ZnO/glass multilayer thin film in the visible region. But optical transparency decreases from 85% for ZnO/glass film to 65% for ZnO/Ag/ZnO/glass multilayer film. Increasing thickness varying from 0.5 nm to 10nm enhances the conductivity. We also describe the influence of Ag thickness on optical and electrical properties of the ZnO/Ag/ZnO composite and suggest a mechanism of tunability influenced by surface plasmon. These results show that multilayer structure of ZnO/Ag/ZnO/glass can replace the conventional ITO (Indium Tin Oxide) as transparent conducting substrates.

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“…In order to develop a cost‐effective alternative to conventional ITO electrode with low resistance (~10 −4 Ω cm), high transmittance (~83% at 550 nm), and relatively high work function (~4.8 eV), a wide variety of oxide/Ag/oxide (O/Ag/O) multilayer films have been widely investigated . These O/metal/O structures were shown to have a high visible transmittance comparable to that of ITO because of a large difference in the refractive indices of Ag and oxide layers and good conductivity due to conductive Ag . In particular, amorphous indium‐gallium zinc oxide (a‐IGZO) is of good interest, because of its energy levels of lowest occupied molecular orbital (LUMO) ≈ 4.2 eV and highest occupied molecular orbital (HOMO) ≈ 7.5 eV, band gap of 3.0–3.2 eV, and a transmittance of higher than 80% in the visible spectrum .…”

Section: Introductionmentioning

confidence: 99%

Inverted Organic Solar Cells Fabricated with Room‐Temperature‐deposited Transparent Multilayer Electrodes

Kim

Kwon

et al. 2017

Bulletin Korean Chem Soc

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We investigated the electrical, optical, and structural properties of Al-doped ZnO (AZO)/Ag/AZO and indium gallium zinc oxide (IGZO)/Ag/IGZO multilayer films, and the performance of inverted organic solar cells (OSCs) fabricated with Sn-doped indium oxide (ITO), AZO/Ag/AZO, and IGZO/Ag/IGZO electrodes. Even though deposited at room temperature, AZO/Ag/AZO (36 nm/19 nm/36 nm) and IGZO/ Ag/IGZO (39 nm/19 nm/39 nm) multilayer films showed sheet resistances of 4.1 and 4.2 Ω/sq, resistivities of 3.3 × 10 −5 and 4.1 × 10 −5 Ω cm, and transmittances of 93 and 88% at 550 nm, respectively. Figures of merit (FOMs) were obtained to be 99.9 and 49.9 × 10 −3 Ω −1 for the AZO/Ag/AZO and IGZO/ Ag/IGZO films, respectively. Inverted OSCs fabricated using the as-deposited AZO/Ag/AZO and IGZO/ Ag/IGZO electrodes produced power conversion efficiencies (PCEs) of 2.4 and 2.6%, respectively, while that with high-temperature annealed ITO electrode gave a PCE of 3.2%.

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Development of Silver-Based Multilayer Coating Electrodes with Low Resistance for Use in Flat Panel Displays

Cited by 46 publications

References 15 publications

Influence of indium–tin oxide surface structure on the ordering and coverage of carboxylic acid and thiol monolayers

Influence of indium–tin oxide surface structure on the ordering and coverage of carboxylic acid and thiol monolayers

Effect of Surface Plasmons on Optical and Electrical Properties of Multilayer ZnO∕Ag∕ZnO Thin Film

Inverted Organic Solar Cells Fabricated with Room‐Temperature‐deposited Transparent Multilayer Electrodes

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