Article
Engineering, Electrical & Electronic
J. Perriere, M. Nistor, E. Millon, C. Cachoncinlle, C. Hebert, N. Jedrecy
Summary: This study investigates the varied electric and magneto-transport properties of epitaxial Nd-doped ZnO thin films grown on (100) MgO single crystal substrate under different growth temperatures. The structural changes are accompanied by significant modifications in charge transport mechanisms, leading to transitions from metallic behavior to semiconductor characteristics. The incorporation of Nd3+ ions during growth affects the scattering centers for electrons, influencing the overall conductivity of the films.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
A. S. Mikheykin, V. B. Shirokov, M. El Marssi, D. Mezzane, N. Lyanguzov, A. Pavlenko, D. Stryukov, A. G. Razumnaya
Summary: Sr0.5Ba0.5Nb2O6 (SBN50) films with different thicknesses were synthesized by high-current discharge rf sputtering, exhibiting twinning of the same type. The appearance of this twin type is related to the peculiarity of the synthesis method, warranting further investigation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
S. Kazan, B. Kocaman, A. Parabas, F. Yildiz
Summary: Epitaxially grown NiGe thin films on (001) oriented MgO substrate using MBE exhibited four-fold rotational crystalline symmetry and grew on (110)-crystalliographic orientation with respect to the substrate. The saturation magnetization decreased with increasing Ge concentration up to a critical value before starting to increase again. As the relative Ge concentration increased, the structural and magnetic properties evolved into a new phase with a critical structural order parameter. Ferromagnetic resonance measurements showed consistent magneto-crystalline anisotropy parameters with this critical order. Comparisons were made with previous studies on NiGe thin films grown on native oxide Si (001) substrate.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Chemistry, Physical
HyoChang Jang, Katsuhiko Saito, Qixin Guo, Kin Man Yu, Wladek Walukiewicz, Tooru Tanaka
Summary: ZnCdO thin films with a range of Cd compositions were grown on MgO substrates by molecular beam epitaxy, showing different phases depending on the Cd composition and a phase transition within a mixed phase region. The films exhibited varying optical band gap energies and significant electrical properties, including high carrier concentration, low resistivity, and high mobility on RS-ZnCdO thin films.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Maher Tlili, Chayma Nefzi, Badriyah Alhalaili, Chaker Bouzidi, Lassaad Ajili, Neila Jebbari, Ruxandra Vidu, Najoua Turki Kamoun
Summary: Magnesium oxide thin films were successfully grown with different magnesium concentrations using a spray pyrolysis technique. The film with [Mg2+] = 0.15 mol & BULL;L-1 showed improved crystalline quality and high transparency, making it suitable for optical window or buffer layer in solar cell applications. The films also exhibited a high reflectance in the IR range, which could be beneficial in preventing surface temperature increase under solar irradiation.
Article
Materials Science, Multidisciplinary
Funmilayo Hannah Abejide, Akintunde Ayodeji Ajayi, Samson Ibukun Akinsola, Aderemi Babatunde Alabi
Summary: In this study, gallium oxide thin films were synthesized using the cost-effective spray pyrolysis method on silicon substrates. The chemical bonding and surface morphology were analyzed using Fourier transform infrared and scanning electron microscopy. Optical studies revealed high absorbance in the UV region and an optical band gap of 4.9 eV for the films.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
T. Roch, M. Gregor, S. Volkov, M. Caplovicova, L. Satrapinskyy, A. Plecenik
Summary: This study examined the impact of different substrates on the structure and orientation of niobium nitride thin films, revealing that films on C-Al2O3 substrate exhibited the best superconducting properties.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Marijn W. van de Putte, Mark Huijben
Summary: To enable miniaturized thermoelectric energy generation devices for wireless sensors, high-quality thin film architectures are needed. This study explores the impact of epitaxial alignment between the orthorhombic SnSe crystal structure and the orthorhombic DyScO3 substrate. The achieved (100)-oriented single crystalline SnSe thin films exhibit the formation of two domain types, and show a sudden increase in electrical conductivity above 400 K. The epitaxial alignment enhances thermoelectric performance and enables the realization of miniaturized TEG devices.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
C-E Bejjit, V. Roge, C. Cachoncinlle, C. Hebert, J. Perriere, E. Briand, E. Millon
Summary: In this study, different FeOx-based thin films were successfully grown using pulsed-laser deposition. The films include metallic iron, α-Fe2O3, Fe3O4, and the thermodynamically metastable phase FeO. The results demonstrate that the O/Fe ratio in the films can be controlled by adjusting the substrate temperature and oxygen pressure.
Article
Optics
M. Stachowicz, J. M. Sajkowski, A. Wierzbicka, E. Przezdziecka, M. A. Pietrzyk, E. Dynowska, S. Magalhaes, E. Alves, A. Kozanecki
Summary: The study described the optical properties of homoepitaxially grown ZnO/MgO superlattices on a-oriented ZnO substrates and found that the wurtzite coordination collapses in the SLs with 3 nm MgO thick barriers. The high energy barrier of MgO in such structures allows treating the ZnO layers as separate quantum wells.
JOURNAL OF LUMINESCENCE
(2021)
Article
Chemistry, Analytical
Yongjuan Zhao, Wenge Wu, Yunping Cheng, Wentao Yan
Summary: This paper investigates the influence of process parameters on the surface quality of an aluminum oxide thin film used as a transition layer in a thin-film strain micro-sensor. By optimizing the process parameters, the adhesion between the insulating-layer silicon nitride film and the aluminum substrate can be improved.
Article
Chemistry, Multidisciplinary
Joao Otavio Mendes, Andrea Merenda, Karen Wilson, Adam Fraser Lee, Enrico Della Gaspera, Joel van Embden
Summary: The growth of (001) oriented antimony chalcogenide thin films can be controlled by tuning the substrate nanostructure, which is crucial for enhancing the performance of these films.
Article
Chemistry, Physical
Shujie Sun, Wenyan Wang, Jianqiao Chen, Zhenyu Xiao, Nian Cheng, Zhiqiang Zhao, Yongshang Tian, Xiaofeng Yin
Summary: Driven by their ferroelectric, semiconducting, photonic properties, Aurivillius-type oxides of the binary Bi4Ti3O12-BiFeO3 system have shown potential in the field of photovoltaics. The optimal photovoltaic effect was observed in BFTO-4 films on Pt/Ti/SiO2/Si substrate, while an increase in layers led to an enhanced current response along with a reduction in open circuit voltage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Motoki Osada, Kazunori Nishio, Kyuho Lee, Michael Colletta, Berit H. Goodge, Woo Jin Kim, Lena F. Kourkoutis, Harold Y. Hwang, Yasuyuki Hikita
Summary: The research presents the first photoelectrochemical characterization of epitaxial thin film Fe2TiO5, revealing highly efficient charge transfer at the Fe2TiO5-electrolyte interface. This notable surface property is exploited in the form of an Fe2TiO5/alpha-Fe2O3 heterostructure photoanode, leading to a significant increase in photocurrent density and improvement in onset potential.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yutaka Kimura, Takahiro Ihara, Takumi Ojima, Ryuji Oshima, Atsuhito Sawabe, Hideo Aida
Summary: With increasing demand for large-diameter heteroepitaxial diamond, the understanding of thermally induced bending of heteroepitaxial diamond has become important. The study investigated the physical bending of heteroepitaxial diamond grown on Ir/MgO substrates and summarized the state of the diamond film as a function of thickness. The observations showed different behaviors of the diamond film at different thicknesses, including delamination, breaking, and freestanding. Theoretical calculations were performed to predict the substrate curvature and the results showed good agreement with experimental observations.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Caleb J. Bennett, Helen E. A. Brand, Alexander K. L. Yuen, Maria K. Nicholas, Brendan J. Kennedy
Summary: The temperature dependence of the crystal structure of Potassium Hexaiodoplatinate(IV) between 80 and 500 K is studied. Different crystal structures are observed at different temperatures, including monoclinic, tetragonal, and cubic structures. Accurate determination of the structures of K2PtI6 is important for further theoretical and practical research.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhuo Zeng, Jiangfu Zheng, Xiaoming Li, Changzheng Fan, Rongying Zeng, Wenqing Tang
Summary: An efficient method for phosphate removal from wastewater is urgently needed due to the environmental issue caused by excessive phosphorus. In this study, calcium aluminum layered double hydroxides (CaAl-LDHs) and six amino acid intercalated calcium aluminum layered double hydroxides (CaAl-amino acid-LDHs) were prepared and compared for their phosphate adsorption performance. L-Aspartic acid intercalated calcium aluminum layered double hydroxides (CaAl-Asp-LDHs) exhibited the highest phosphate adsorption capacity and faster removal rate compared to CaAl-LDHs. The phosphate adsorption mechanism on CaAl-Asp-LDHs involved electrostatic attraction, hydrogen bonds, complexation, and ion exchange. This environmentally friendly material shows promising potential for efficient phosphate removal from aquatic environments.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Rouzbeh Aghaei Hakkak, Thomas Schleid
Summary: The novel guanidinium hydro-closo-borates with [BnHn]2- (n = 10 and 12) anions were successfully synthesized via direct reaction. The crystal structures exhibit hydrogen bonding interactions and have the potential to facilitate H2 generation.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Liqiang Ma, Pengpeng Wei, Jingfang Li, Liye Liang, Guangming Li
Summary: A novel catalyst, H4PVMo2W9O40@rht-MOF-1, was developed using a one-pot hydrothermal method. It exhibited high efficiency and reusability in esterification reactions.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Liudmila A. Gorelova, Valentiva A. Yukhno, Maria G. Krzhizhanovskaya, Oleg S. Vereshchagin
Summary: Two new Ga-Ge disordered feldspar-related compounds were successfully synthesized using melt crystallization methods. Their stability and thermal expansion properties were studied under high-temperature conditions. The results showed that both compounds are stable within the studied temperature range and exhibit anisotropic thermal expansion.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Seifeddine Bdey, Nesrine Boussadoune, Francois Allard, Jacques Huot, Gabriel Antonius, Noura Fakhar Bourguiba, Pedro Nunez
Summary: The structure of a novel arsenate compound Na3Al3(AsO4)4 has been determined using X-ray diffraction. The crystal exhibits a monoclinic space group with suitable pathways for Na+ ion migration. The accuracy of the structural model was confirmed using various validation tools and density functional theory calculations.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Amit Kumar Atri, Ujwal Manhas, Sumit Singh, Irfan Qadir, Shikha Sharma, Preteek Sharma, Devinder Singh
Summary: This study synthesizes new oxygen deficient triple layered Ruddlesden-Popper (RP) phases via sol-gel method and investigates the effects of Cr3+ doping on their structural, optical, magnetic, and photocatalytic properties. The experimental results demonstrate that Cr3+ doping alters the interactions and leads to excellent photocatalytic performance in some phases.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Dat Le Thanh, Amandine Guiet, Emmanuelle Suard, Romain Berthelot
Summary: In this study, FeNb11O29 powder samples were prepared using a microwave-assisted solid-state synthesis method for the first time. The samples obtained rapidly from submicrometric oxide precursors showed enhanced cycling performance, possibly due to the easier ionic diffusion occurring in the smaller particles.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Raimund Ziegler, Felix R. S. Purtscher, Thomas S. Hofer, Gunter Heymann, Hubert Huppertz
Summary: We have successfully synthesized a new tellurium borate crystal under high-pressure and high-temperature conditions. The crystal structure and theoretical calculations have been thoroughly discussed.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Subhendu Jana, Eric A. Gabilondo, Paul A. Maggard
Summary: This study reports the synthesis and characterization of two previously unknown multinary selenides, Ba8Hf2Se11(Se-2) and Ba9Hf3Se14(Se-2), which display unique structures and optoelectronic properties competitive with existing perovskite-type chalcogenides.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Fei Ruan, Chonggui Lei, Fenglong Zhang, Jinxiao Bao, Fen Zhou, Min Xie, Pengfei Xu, Jianquan Gao
Summary: Studying the diffusion properties of hydrogen is important for designing new proton conductors. In the past, the chemical diffusion coefficient of hydrogen in proton conductors was usually obtained through a manual calculation method, resulting in difficulty in controlling the calculation accuracy. To address this issue, a mathematical algorithm and C language computer program were developed to calculate the chemical diffusion coefficient based on Fick's second law and Romberg numerical integral. The algorithm showed high precision and powerful computing function, and has the potential to replace the manual calculation method in calculating the chemical diffusion coefficient for hydrogen in proton conductors.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Deepika Shanubhogue, Suraj Mangavati, Ashok Rao, Ru-Ting Tsao, Yung-Kang Kuo
Summary: In this study, the effect of Y doping at the Sn-site on the structural, electrical, and low-temperature thermoelectric properties of the Cu2SnSe3 system is investigated. Y-doped compounds Cu2Sn1-xYxSe3 show reduced electrical resistivity, enhanced power factor, and decreased thermal conductivity, resulting in higher ZT values.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Wei Hong, Min Qing, Xun He, Lei Wang, Yu Pu, Qiyu Li, Zhimin He, Qin Dong, Rong Li, Xinglong Gou
Summary: This study developed a simple method to prepare SnS2 nanosheets and assembled them with MXene to form SnS2/MXene. The composite material exhibited abundant active sites, superior electron/ion transfer kinetics, and a unique 2D interlayer structure, resulting in high specific capacity, outstanding rate capability, and excellent cycling stability, with potential applications in LIBs.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Heng-Yu Ruan, Xue-Qian Wu, Tian-Yu Zhang, Yi Yuan, Le Wang, Ya-Pan Wu, Qing-Wen Han, Ruan Chi, Dong-Sheng Li
Summary: Two isostructural metalorganic frameworks (MOFs), CTGU-36-Co and CTGU-36-Ni, were synthesized, and CTGU-36-Ni demonstrated high activity as a molecular electrocatalyst for the methanol oxidation reaction.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Rachid Fakhreddine, Ali Ouasri, Abderrahim Aatiq
Summary: This paper reports the synthesis, structure, and spectroscopic studies of three novel metal orthophosphate salts. The structures of these compounds were refined using X-ray powder diffraction data. The infrared and Raman analysis revealed their symmetries and the UV-visible investigation determined their optical properties.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)