Application-Specific Oxide-Based and Metal–Dielectric Thin-Film Materials Prepared by Radio Frequency Magnetron Sputtering

Nur-E-Alam, Mohammad; Lonsdale, Wade; Vasiliev, Mikhail; Alameh, Kamal

doi:10.3390/ma12203448

Cited by 9 publications

(20 citation statements)

References 104 publications

(113 reference statements)

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“…The obtained transmission spectrum of the MDC-based structures confirms the possibility of engineering and producing new optical coatings, filters, or redesigning and modifying the existing coatings by using metal-dominant composite layers, which can then offer better environmental stability properties compared to similar structures based on pure Ag layers. This can be tested and confirmed by running dry-heat exposure tests in air atmosphere; some of the relevant results were previously reported by our group [24,25,49]. The measured and simulated color chromaticity (Hunter L, a, b) values for several MDC-based D/MDC/D type structures are summarized in Table 4.…”

Section: Layer-based Dmd-type Multilayer Structuressupporting

confidence: 68%

“…Several reports have been published about the properties of various metal-dielectric composite (MDC) thin-film layer chemistries, including Ag + SiO 2 , Ag + TiO 2 , and Ag + MgF 2 ; however, most of them were about metal-dielectric nanoparticle array properties of interest for various applications [20][21][22][23]. We previously proposed and partially implemented the development of optimized metal-based RF magnetron co-sputtered MDC (e.g., Ag + MgF 2 ) layers to replace the pure metal layer in those optical coatings [24,25]. To the best of our knowledge, the majority of published literature describing Ag-MgF 2 and similar nano-composites research relates to applications other than the product-level development of advanced transparent heat regulating (THR) coatings for use in modern construction.…”

mentioning

confidence: 99%

“…To the best of our knowledge, the majority of published literature describing Ag-MgF 2 and similar nano-composites research relates to applications other than the product-level development of advanced transparent heat regulating (THR) coatings for use in modern construction. We practically prepared and demonstrated MDC layer-based optical coating building blocks with high structural and optical durability and stability [24,25], however, until recently, we have not explored the color chromaticity properties of those multilayer coating types. Even though this work is a continuation of efforts reported in a broader metal-dielectric materials research area [26][27][28], and alternative material system solutions might exist in industrial settings, we are unaware, to the best of our knowledge, of any prior reports on achieving environmentally stable THR coatings based on using the same material combination while targeting the accurate control over the chromaticity.Metal-dielectric thin-film coatings (spectral filters featuring controlled apparent colors) have numerous application possibilities in the fields of building architecture, windows, printed products, and other decorative coatings.…”

mentioning

confidence: 99%

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Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

et al. 2020

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Coated glass products, and especially the low-emissivity coatings, have become a common building material used in modern architectural projects. More recently, these material systems became common in specialized glazing systems featuring solar energy harvesting. Apart from achieving the stability of optical parameters in multilayer coatings, it is also important to have improved control over the design of visual color properties of the coated glass. We prepare metal-dielectric composite (MDC)-based multilayer thin-film structures using the radio frequency (RF)-magnetron sputtering deposition and report on their optical and chromaticity properties in comparison with these obtained using pure metal-based Dielectric/Metal/Dielectric (DMD) trilayer structures of similar compositions. Experimentally achieved Hunter L, a, b values of MDC-based multilayer building blocks of coatings provide a new outlook on the engineering of future-generation optical coatings with better color consistency and developing approaches to broaden the range of achievable color coordinates and better environmental stability.Low-E coatings can still be expected to represent core technology in advanced windows, whether or not additional technologies are embedded. The Low-E coatings are typically structured as metal-dielectric multilayer thin films, which are designed to prevent heat leakage (from the inside of buildings into the environment) by providing strong and very wide-band reflection of thermal infrared wavelengths.In recent years, the optical properties of metal-dielectric coatings and their influence on building energy efficiency have been studied extensively due to their superior performance compared to other multilayer coating structure types. The metal-dielectric coatings performance mainly depends on the choice of materials and its design philosophy [7][8][9][10][11][12][13][14][15]. Most (or practically all) products available today from this category (featuring high spectral selectivity) employ at least two silver (Ag) layers within their structure, and these coatings cannot withstand prolonged (weeks-scale) exposure to either the ambient atmospheric air or dry-heat test temperatures in excess of 160-180 • C. However, the stability problems of ultrathin Ag layers (normally of less than 20 nm thickness) originate from a range of factors related to the metal layer growth morphology. To overcome these issues, a significant number of research works have been proposed, conducted, and resulted in reporting various solutions, where some of them require more complex materials processing and process parameters optimization [10][11][12][13][14][15][16][17][18][19]. Several reports have been published about the properties of various metal-dielectric composite (MDC) thin-film layer chemistries, including Ag + SiO 2 , Ag + TiO 2 , and Ag + MgF 2 ; however, most of them were about metal-dielectric nanoparticle array properties of interest for various applications [20][21][22][23]. We previously proposed and partially implemented the developmen...

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Section: Layer-based Dmd-type Multilayer Structuressupporting

confidence: 68%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

et al. 2020

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“…We previously proposed and partially implemented the development of optimized metal-based RF magnetron co-sputtered MDC (e.g. Ag+ MgF2) layers to replace the pure metal layer in those optical coatings [23,24]. To the best of our knowledge, the majority of published literature describing Ag-MgF2 and similar nano-composites research relates to applications other than the product-level development of advanced transparent heat regulating (THR) coatings for use in modern construction.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

Nur-E-Alam¹,

Rahman²,

Basher³

et al. 2020

Preprint

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Over the last decades, the coated glass products, and especially the low-emissivity coatings have become a common building material used in modern architectural projects. More recently, these material systems became common in specialized glazing systems featuring solar energy harvesting. Apart from achieving the stability of optical parameters in multilayer coatings, it is also important to have improved control over the design of visual color properties of the coated glass. We prepare metal-dielectric composite (MDC) based multilayer thin-film structures using the RF-magnetron sputtering deposition and report on their optical and chromaticity properties in comparison with these obtained using pure metal-based Dielectric/Metal/Dielectric (DMD) trilayer structures of similar compositions. Experimentally achieved Hunter L, a, b values of MDC-based multilayer building blocks of coatings provide a new outlook on the engineering of future-generation optical coatings with better color consistency and developing approaches to broaden the range of achievable color coordinates and better environmental stability.

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Transparent-conductive and infrared-shielding WO3/Ag/WO3 multilayer heterostructures

Al-Kuhaili

2023

Solar Energy

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Application-Specific Oxide-Based and Metal–Dielectric Thin-Film Materials Prepared by Radio Frequency Magnetron Sputtering

Cited by 9 publications

References 104 publications

Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

Transparent-conductive and infrared-shielding WO3/Ag/WO3 multilayer heterostructures

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