Article
Materials Science, Coatings & Films
Jiankang Huang, Xiang Yu, P. W. Shum, Zhifeng Zhou, Yijie Ma
Summary: Atomic layer deposition of Al(2)O(3)films on 925 silver enhances luster and oxidation resistance, with film thickness below 25nm effectively maintaining the silver shine and thickness above 16nm providing resistance to corrosion in Na2S solution.
SURFACE ENGINEERING
(2021)
Article
Electrochemistry
Maido Merisalu, Lauri Aarik, Helle-Mai Piirsoo, Jekaterina Kozlova, Aivar Tarre, Roberts Zabels, Johanna Wessing, Abel Brieva, Vaino Sammelselg
Summary: A thin nanostructured corrosion protection coating for Al alloy has been demonstrated, showing excellent corrosion resistance and hardness properties.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Review
Chemistry, Physical
Lionel Santinacci
Summary: Atomic layer deposition (ALD) is a widely used method for growing thin films, especially in the industrial fabrication processes of microelectronics and luminescent display technologies. It has the potential for various applications such as energy, sensing, biomaterials, and photonics due to its ability to grow compact and conformal films with precise thickness control. Although there are few reports on ALD's application to corrosion protection, it has been shown to have significant benefits in this field. This report provides a brief overview of ALD's principle, the impact of main parameters on film properties, and reviews successful examples of ALD being used to protect metallic and non-metallic surfaces in different fields.
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE
(2023)
Article
Electrochemistry
Ivan Spajic, Ehsan Rahimi, Maria Lekka, Ruben Offoiach, Lorenzo Fedrizzi, Ingrid Milosev
Summary: Thin films of alumina and hafnia prepared by atomic layer deposition show excellent barrier properties for biomedical applications, with protection mainly dependent on film thickness and substrate type, rather than configuration. Further investigation is warranted for these single and multilayer thin films.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Coatings & Films
P. C. Lin, K. F. Lin, C. Chiu, V. Semenov, H. C. Lin, M. J. Chen
Summary: ALPT technique enhances the corrosion protection of TALD-ZrO2 film by increasing crystallinity and reducing oxygen defects, with the best result achieved at 30s treatment time.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yingfeng He, Meiling Li, Huiyun Wei, Yimeng Song, Peng Qiu, Mingzeng Peng, Xinhe Zheng
Summary: The study found that increasing growth temperature leads to higher O content and surface roughness of GaN thin films, as well as diffusion of GaN into Kapton when the temperature exceeds 250 degrees C. Introducing Al(2)O(3) or AlN can significantly reduce oxygen impurities, suppress GaN diffusion into Kapton, and improve the surface morphology of GaN deposited on Kapton.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Sarah Hashemi Astaneh, Harshdeep Bhatia, Bruna Egumi Nagay, Valentim Adelino R. Barao, Gregory Jursich, Cortino Sukotjo, Christos G. Takoudis
Summary: This study utilized atomic layer deposition (ALD) to functionalize the filter of an N95 mask with silver nano-islands, demonstrating its effectiveness against Staphylococcus aureus. The results showed that the deposited silver remained stable on the filter media and exhibited antimicrobial properties.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Mihaela Dinu, Kaiying Wang, Emile S. Massima Mouele, Anca C. C. Parau, Alina Vladescu (Dragomir), Xinhua Liang, Viorel Braic, Leslie Felicia Petrik, Mariana Braic
Summary: The potential of enhanced corrosion resistance of Ti(N,O) cathodic arc evaporation-coated 304L stainless steel using oxide nano-layers deposited by atomic layer deposition (ALD) was explored in this study. Al2O3, ZrO2, and HfO2 nanolayers of two different thicknesses were deposited onto Ti(N,O)-coated 304L stainless steel surfaces by ALD. The anticorrosion properties of the coated samples were investigated using XRD, EDS, SEM, surface profilometry, and voltammetry. The amorphous oxide nanolayers exhibited lower roughness after corrosion attack and the thickest oxide layers showed the best corrosion resistance. The thicker oxide nanolayers enhanced the corrosion resistance of the Ti(N,O)-coated stainless steel in a saline, acidic, and oxidising environment, which is important for corrosion-resistant housings in advanced oxidation systems.
Article
Nanoscience & Nanotechnology
Hana Krysova, Michael Neumann-Spallart, Hana Tarabkova, Pavel Janda, Ladislav Kavan, Josef Krysa
Summary: Al2O3 layers deposited by atomic layer deposition on electrodes can block electron transfer, but are susceptible to rapid dissolution in strong alkaline media. Optimal stability is achieved under neutral conditions, providing effective protection against direct reduction.
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Yujin Lee, Taewook Nam, Seunggi Seo, Hwi Yoon, Il-Kwon Oh, Chong Hwon Lee, Hyukjoon Yoo, Hyun Jae Kim, Wonjun Choi, Seongil Im, Joon Young Yang, Dong Wook Choi, Choongkeun Yoo, Ho-Jin Kim, Hyungjun Kim
Summary: The study demonstrates the excellent hydrogen barrier properties of ALD-grown Al2O3 in improving the stability of a-IGZO TFTs. Different behaviors were observed when hydrogen was incorporated into H2O-Al2O3 and O3-Al2O3, with O3-Al2O3 showing remarkable hydrogen barrier performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Elnaz Bahmani, Ali Zakeri, Alireza Sabour Rouh Aghdam
Summary: This study investigates the tarnish resistance and long term microstructural stability of silver-germanium (Ag-Ge) coatings in industrial atmosphere compared to silver electrodeposits. It was found that the inclusion of 6wt.% Ge in the coating forms a thin protective oxide layer, improving tarnish resistance significantly. Evaluation according to ISO 4538 standard showed the Ag-6Ge coating with 6wt.% Ge content has the best performance in atmospheric corrosion.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Wenling Li, Jiangong Cheng, Zilong Zheng, Qiaohong Liu, Feng Geng, Hui Yan
Summary: In this study, the energy diagrams and reaction activation energies of aminosilane precursors in ALD and silanol precursors in RALD were investigated using first-principles based on density functional theory. It was found that BTBAS had the lowest energy barrier in the rate-determining step, suggesting that the rapid rate of RALD might be due to the addition of trimethylaluminum catalyst. The correlation between bond length and reaction activation energies provides a new perspective for studying these processes. This research helps clarify the reaction processes and facilitates the design and preparation of more efficient precursors.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Ying Wu, Er-Tao Hu, Qing-Yuan Cai, Jing Wang, Zheng-Yong Wang, Hua-Tian Tu, Ke-Han Yu, Liang-Yao Chen, Wei Wei
Summary: By employing ALD Al2O3 layer, diffusion of metal atoms in the multilayer solar selective absorber was effectively suppressed, enhancing its thermal stability. The designed sample exhibited high solar absorptance and low thermal emittance, and demonstrated stable operation at 500 degrees C, making it suitable for applications in middle-temperature solar thermal conversion systems.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Thomas Lange, Sven Reichenberger, Markus Rohe, Mathias Bartsch, Laura Kampermann, Julian Klein, Jennifer Strunk, Gerd Bacher, Robert Schloegl, Stephan Barcikowski
Summary: The research reports the complete photostabilization of individual ZnS particles by a dense and durable Al2O3 layer produced by atomic layer deposition. This technology prevents ZnS from corrosive decomposition during UV irradiation, significantly expanding its potential applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Metallurgy & Metallurgical Engineering
Mirco Peron, Susanna Cogo, Maria Bjelland, Abdulla Bin Afif, Anup Dadlani, Elisa Greggio, Filippo Berto, Jan Torgersen
Summary: The study investigates the corrosion behavior and biological response of ALD TiO2, HfO2, and ZrO2 coatings on AZ31 alloy. Results indicate improved corrosion resistance and cytotoxicity of all three coatings, with HfO2 showing the highest performance in terms of corrosion resistance and cell viability.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)