Durability of Indium Tin Oxide-Silver-Indium Tin Oxide Films against Moisture Investigated Through The Wettability of The Top Oxide Layer

Chen, Shiwei; Bai, Ching-Yuan; Jain, Cho-Chi; Zhan, Cheng; Koo, Chun-Hao

doi:10.2320/matertrans.mer2007038

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…In the case of coated Ag layers, this agglomeration results in mechanical stress in the top dielectric, which can lead to delamination of the layer. Similar spots are observed during salt spray test on low-E coatings [14] or long-term exposure to high humidity conditions [25]. The role of the air humidity on the formation of "corrosion spots" has also been reported for other ultra-thin metal layers used in magnetic devices [26].…”

Section: Introductionsupporting

confidence: 66%

Chemical Stability of Sputter Deposited Silver Thin Films

Depla

2022

Coatings

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Silver films with a thickness below 50 nanometer were deposited on glass using DC magnetron sputtering. The chemical stability of the films was investigated by exposure of the film to a droplet of a HCl solution in a humid atmosphere. The affected area was monitored with a digital microscope. The affected area increases approximately linearly with time which points to a diffusive mechanism. The slope of the area versus time plot, or the diffusivity, was measured as a function of the acid concentration, the presence of an aluminum seed layer, and film thickness. The diffusivity scales linearly with the acid concentration. It is shown that the diffusivity for Al-seeded Ag films is much lower. The behavior as function of the film thickness is more complex as it shows a maximum.

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Section: Introductionsupporting

confidence: 66%

Chemical Stability of Sputter Deposited Silver Thin Films

Depla

2022

Coatings

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“…Coating a dielectric layer atop the Ag film could be useful to block the penetration of moisture from the ambient environment into Ag, though cautions are needed to ensure that the dielectric layer itself does not degrade easily by heating or humidity. [ 167,181–184 ] Nichrome, chrome nitride (CrN), or nichrome nitride (NiCrN x ) coating acts as an effective passivation medium for Ag film protection, and remarkably, even a sub‐nanometer thick coating can greatly improve Ag's stability. [ 185–189 ] In many cases, the above thin coatings are employed together with a silicon nitride (SiN x ) protection layer on top.…”

Section: Fabrication Of High‐quality Ultrathin Metal Filmsmentioning

confidence: 99%

Thin‐Metal‐Film‐Based Transparent Conductors: Material Preparation, Optical Design, and Device Applications

Zhang

Park

et al. 2020

Advanced Optical Materials

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Transparent conductors are essential elements in an array of optoelectronic devices. The most commonly used transparent conductor – indium tin oxide (ITO) suffers from issues including poor mechanical flexibility, rising cost, and the need for annealing to achieve high conductivity. Consequently, there has been intensive research effort in developing ITO‐free transparent conductors over the recent years. This article gives a comprehensive review on the development of an important ITO‐free transparent conductor, that is based on thin metal films. It starts with the background knowledge of material selection for thin‐metal‐film‐based transparent conductors and then surveys various techniques to fabricate high‐quality thin metal films. Then, it introduces the spectroscopic ellipsometry method for characterizing thin metal films with high accuracy, and discusses the optical design procedure for optimizing transmittance through thin‐metal‐film‐based conductors. The review also summarizes diverse applications of thin‐metal‐film‐based transparent conductors, ranging from solar cells and organic light emitting diodes, to optical spectrum filters, low‐emissivity windows, and transparent electromagnetic interference coatings.

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“…Instead, a tri-layered transparent conductive oxide/metal/transparent conductive oxide composite film, i.e., ITO/Ag/ITO (IAI) with a thickness of 20 nm/110 nm/20 nm, was adopted as the reflective anode ( Figure 4 a). Compared with the pure Ag film, the IAI anode has the advantages of better material stability and enhanced optical reflection because of ITO protection [ 45 ]. Moreover, the IAI anode has more surface processability.…”

Section: Resultsmentioning

confidence: 99%

Top-Emitting Active-Matrix Quantum Dot Light-Emitting Diode Array with Optical Microcavity for Micro QLED Display

Lai

Yang²,

Tsai³

et al. 2022

Nanomaterials

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An electroluminescent quantum-dot light-emitting diode (QLED) device and a micro QLED device array with a top-emitting structure were demonstrated in this study. The QLED device was fabricated in the normal structure of [ITO/Ag/ITO anode]/PEDOT:PSS/PVK/QDs/[ZnO nanoparticles]/Ag/MoO3, in which the semi-transparent MoO3-capped Ag cathode and the reflective ITO/metal/ITO (IMI) anode were designed to form an optical microcavity. Compared with conventional bottom-emitting QLED, the microcavity-based top-emitting QLED possessed enhanced optical properties, e.g., ~500% luminance, ~300% current efficiency, and a narrower bandwidth. A 1.49 inch micro QLED panel with 86,400 top-emitting QLED devices in two different sizes (17 × 78 μm2 and 74 × 40.5 μm2) on a low-temperature polysilicon (LTPS) backplane was also fabricated, demonstrating the top-emitting QLED with microcavity as a promising structure in future micro display applications.

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Durability of Indium Tin Oxide-Silver-Indium Tin Oxide Films against Moisture Investigated Through The Wettability of The Top Oxide Layer

Cited by 7 publications

References 15 publications

Chemical Stability of Sputter Deposited Silver Thin Films

Chemical Stability of Sputter Deposited Silver Thin Films

Thin‐Metal‐Film‐Based Transparent Conductors: Material Preparation, Optical Design, and Device Applications

Top-Emitting Active-Matrix Quantum Dot Light-Emitting Diode Array with Optical Microcavity for Micro QLED Display

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