Article
Chemistry, Multidisciplinary
Katherine Develos-Bagarinao, Toshiaki Yamaguchi, Haruo Kishimoto
Summary: In order to improve the performance and stability of solid oxide cells (SOCs), this study compares anode-supported cells with thin films to those with conventional screen-printed yttria-stabilized zirconia (YSZ). It is found that thin film structures can suppress nickel diffusion and reduce resistance, resulting in excellent performance and durability in fuel cell operation.
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)
Article
Materials Science, Multidisciplinary
Jaehyeong Lee, Dohyun Go, Useung Lee, Seunghyeon Lee, Keun Hoi Kim, Jeong Woo Shin, Hyein Kim, Jong G. Ok, Jihwan An
Summary: This study demonstrates a simple yet effective strategy for fabricating high-quality thin films on a polymer substrate, resulting in the realization of high-performance flexible thin film capacitors. The use of plasma-assisted atomic layer annealing and dynamic nanoinscribing techniques enables the fabrication of flexible capacitors with record-high capacitance density and mechanical stability.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Erdogan Celik, Pascal Cop, Rajendra S. Negi, Andrey Mazilkin, Yanjiao Ma, Philip Klement, Joerg Schoermann, Sangam Chatterjee, Torsten Brezesinski, Matthias T. Elm
Summary: This study investigates the design of mixed-conducting nanocomposites by surface modification using atomic layer deposition (ALD). It was found that the porosity of the nanocomposites has no effect on their charge-transport properties, while the thickness of the ceria layer plays an important role.
Article
Materials Science, Ceramics
Wen Ran, Fan Liu, Hao Li, Shaojun Liu
Summary: A layer of nano-sized alumina thin-film was grown on MgTiO3 based ceramic resonator using atomic layer deposition (ALD) to improve the bonding between resonator and metal coatings. The hydroxylation of resonator surface ensures strong bonding between alumina film and ceramic substrate, resulting in a bonding score of 10. The metalized ceramic resonator with alumina thin-film intermediate layer has significantly lower signal insertion loss compared to resonators treated by traditional methods.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Putinas Kalinauskas, Laurynas Staisiunas, Asta Griguceviciene, Konstantinas Leinartas, Aldis Silenas, Dalia Bucinskiene, Eimutis Juzeliunas
Summary: This study proposes a photoelectrode for the hydrogen evolution reaction (HER) based on p-type silicon (p-Si) passivated with a 10 nm ultrathin alumina (Al2O3) layer and modified with microformations of a nickel catalyst. The alumina film improves electronic properties and protects the surface while enabling the deposition of nickel microformations. The nickel catalyst significantly increases the HER rate, comparable to a hydrogen-terminated electrode.
Article
Nanoscience & Nanotechnology
Suresh Thapa, Sydney R. Provence, Patrick T. Gemperline, Bethany E. Matthews, Steven R. Spurgeon, Sydney L. Battles, Steve M. Heald, Marcelo A. Kuroda, Ryan B. Comes
Summary: 4d transition metal oxides, such as SrNbO3, show promise for various applications including high mobility electronics. However, the synthesis of SrNbO3 is challenging due to the metastable nature of the Nb4+ cation and limitations in delivering refractory Nb. In this study, SrNbO3 thin films were successfully grown using hybrid molecular beam epitaxy (MBE) with a Sr source and a tris(diethylamido)(tert-butylimido) niobium precursor. Insulating SrHfO3 capping layers were deposited on top of the SrNbO3 films to preserve the metastable surface. The results demonstrate that the SrHfO3 capping plays a crucial role in preserving the crystalline quality and metastable charge state of Nb4+ under atmospheric conditions.
Article
Physics, Applied
Ningyu Ren, Chengjun Zhu, Renjie Li, Sayantan Mazumdar, Cong Sun, Bingbing Chen, Qiaojing Xu, Pengyang Wang, Biao Shi, Qian Huang, Shengzhi Xu, Tiantian Li, Ying Zhao, Xiaodan Zhang
Summary: Although perovskite solar cells based on SnO2 have achieved high power conversion efficiency, large-scale fabrication remains a challenge. An atomic layer deposition (ALD) process using H2O2 as an oxygen source is demonstrated, enabling low-temperature deposition and producing highly uniform films. This technology shows potential in both single junction and tandem solar cells.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Armando Galluzzi, Krastyo Buchkov, Blagoy S. Blagoev, Albena Paskaleva, Ivalina Avramova, Vladimir Mehandhziev, Peter Tzvetkov, Penka Terziyska, Daniela Kovacheva, Massimiliano Polichetti
Summary: This study investigates the magneto-optical Kerr effects of ZnO and ZnO:Ni-doped nanolaminate structures prepared by atomic layer deposition. The results reveal that the magneto-optical response in ZnO:Ni films is extensively inhomogeneous and exhibits a giant polarization rotation angle, indicating its significance in magneto-optical effect research.
Article
Chemistry, Physical
Jon G. Baker, Joel R. Schneider, Camila de Paula, Adriaan J. M. Mackus, Stacey F. Bent
Summary: This study investigates the surface-directed modification of Ni(OH)(2)/Ni(OOH) electrocatalysts using ALD, revealing the important role of surface iron in enhancing the oxygen evolution reaction activity, as well as the impact of iron distribution throughout the structure. Incorporation of iron throughout the Ni(OH)(2)/Ni(OOH) structure was found to increase OER geometric activity for thick, high surface area catalysts. Additionally, Ni-FeOx electrocatalysts synthesized fully by ALD show high OER activity and potential for photocatalysis applications.
JOURNAL OF CATALYSIS
(2021)
Article
Materials Science, Multidisciplinary
Raul Zazpe, Hanna Sopha, Jaroslav Charvot, Richard Krumpolec, Jhonatan Rodriguez-Pereira, Jan Michalicka, Jan Mistrik, Dominik Baca, Martin Motola, Filip Bures, Jan M. Macak
Summary: The synthesis of MoTe2 nanosheets by ALD was demonstrated for the first time, showing tight control over thickness and composition. The out-of-plane oriented MoTe2 nanosheets, combined with optimized catalytic edges and fast electron transfer properties, exhibited enhanced catalytic performance for both organic pollutant degradation and hydrogen evolution reactions.
APPLIED MATERIALS TODAY
(2021)
Article
Chemistry, Physical
Noemi Leick, Nicholas A. Strange, Andreas Schneemann, Vitalie Stavila, Karl Gross, Nancy Washton, Amy Settle, Madison B. Martinez, Thomas Gennett, Steven T. Christensen
Summary: This study utilizes nanoencapsulation and chemical additives simultaneously to modify borohydrides by using atomic layer deposition (ALD). The use of trimethylaluminum and water in the ALD process significantly improves the low-temperature H2 capacity and desorption kinetics of magnesium borohydride, while suppressing the release of diborane. These results suggest the potential of ALD as a method to functionalize solid-state H2 storage materials.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Fuweng Zhang, Kaiqiao Wu, Damiano La Zara, Michael J. Quayle, Feilong Sun, Gunilla Petersson, Staffan Folestad, Jia Wei Chew, J. Ruud van Ommen
Summary: By depositing different materials as nanoscale films onto micronized budesonide powders using atomic/molecular layer deposition (ALD/MLD) coatings, the flow properties of the powders can be altered and improved. Inorganic nanofilms deposited via ALD can reduce inter-particle forces, leading to improved drug delivery performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Multidisciplinary Sciences
Seung Woo Lee, Heyjin Cho, Choel-Min Jang, Myung-Soo Huh, Sung Min Cho
Summary: A simple sidewall patterning process for organic-inorganic multilayer thin-film encapsulation (TFE) has been proposed and demonstrated. The process involves adhesion lithography on an Al2O3 thin film grown by atomic layer deposition (ALD) using a self-assembled monolayer (SAM) pattern formed by a shadow mask. Sidewall patterning of multilayer TFE was achieved by repeating the adhesion lithography and vapor deposition of organic polymer and SAM patterns. The proposed process allows for the accurate patterning of blanket ALD-grown Al2O3 thin films using a predefined SAM pattern with a shadow mask.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Woo-Jae Lee, Kwang Ho Kim, Young Joong Choi, Zhixin Wan, Se-Hun Kwon
Summary: A novel nanoporous Ni(OH)(2)@ZnO core-shell architecture with high purity and good crystallinity is successfully synthesized through a hydrothermal reaction and atomic layer deposition (ALD). The addition of ALD ZnO thin film significantly enhances the conductivity of the electrodes. The Ni(OH)(2) coated with 10 nm of ZnO exhibits improved performance, attributed to the enhanced charge-transfer resistance.