Article
Chemistry, Multidisciplinary
Raphael Edem Agbenyeke, Sunyoung Shin, Dasom Song, Sojeong Yeo, Bo Keun Park, Taek-Mo Chung, Jongsun Lim, Wooseok Song, Chang Gyoun Kim
Summary: High-quality lead sulfide films were successfully fabricated by H2S-free metal-organic chemical vapor deposition (MOCVD) using a single-source metal-organic complex. The films exhibited chemically stoichiometric and homogenous properties, with high crystallinity and comparable charge transport characteristics as those produced by atomic layer deposition (ALD). Photodetectors fabricated with these films showed high photocurrents, reliable switching characteristics, and high sensitivity over a broad spectral bandwidth, indicating their potential for practical broadband photodetection.
Article
Chemistry, Inorganic & Nuclear
Yasser T. Alharbi, Firoz Alam, Khaled Parvez, Mohamed Missous, David J. Lewis
Summary: This paper outlines the synthesis of bournonite using a discrete molecular precursor strategy and characterizes the material through various techniques. The synthesized bournonite powders and thin films were found to exhibit an orthorhombic crystal structure and an optical band gap energy close to the theoretical value. The study provides insights into the potential of bournonite as a candidate material for photovoltaic energy conversion.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Weiqu Chen, Zimin Chen, Zeqi Li, Zeyuan Fei, Yanli Pei, Gang Wang, Zhiyuan He
Summary: High quality epsilon-phase gallium oxide (Ga2O3) thin films have been successfully grown on silicon substrates using metal-organic chemical vapor deposition (MOCVD). The growth pressure is found to be an important parameter that affects the thin film quality.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Reetendra Singh, Pallellappa Chithaiah, C. N. R. Rao
Summary: This study demonstrates a simple chemical vapor deposition method for the direct growth of crystalline NbO2 films using a freshly prepared Nb-hexadecylamine (Nb-HDA) complex. X-ray diffraction and X-ray photoelectron spectroscopy confirm the NbO2 phase with a distorted rutile body-centered-tetragonal structure and the +4 oxidation state. This method offers a cost-effective process for growing NbO2 films without the need for post-reduction steps.
Article
Physics, Applied
Jiadong Yu, Zixuan Zhang, Yi Luo, Jian Wang, Lai Wang, Xiang Li, Zhibiao Hao, Changzheng Sun, Yanjun Han, Bing Xiong, Hongtao Li
Summary: This study reports the fabrication of high-quality gallium nitride (GaN) films using the ICP-MOCVD method at a low temperature. The GaN films were then used to produce thin-film transistors and photodetectors. The results show that these films exhibit excellent performance, demonstrating their potential for electronic device fabrication.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Aida Raauf, Jennifer Leduc, Michael Frank, Daniel Stadler, David Graf, Michael Wilhelm, Matthias Grosch, Sanjay Mathur
Summary: In this study, UO2 thin films were synthesized by CVD using a U(VI) precursor, and it was found that the application of magnetic fields can alter the morphology and crystallographic orientation of grains, reduce grain size, promote polycrystalline growth, and decrease surface oxidation of U(IV) centers. The presence of a magnetic field as an extrinsic parameter in the CVD process has a positive effect on controlling the texture and chemical homogeneity of the grown films.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Fred Robinson, Daniel W. Newbrook, Peter Curran, C. H. (Kees) de Groot, Duncan Hardie, Andrew L. Hector, Ruomeng Huang, Gillian Reid
Summary: This work demonstrates the growth of continuous and stoichiometric SnTe thin films using a single source precursor at lower temperatures, showing p-type semiconductor behavior and advantageous thermoelectric properties. The precursor also enables area selective growth onto patterned substrates, which could be beneficial for micro-thermoelectric generator fabrication.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Quang Chieu Bui, Bassem Salem, Herve Roussel, Xavier Mescot, Youssouf Guerfi, Carmen Jimenez, Vincent Consonni, Gustavo Ardila
Summary: High temperature annealing under oxygen atmosphere has significant effects on the structure and properties of ZnO thin films, leading to improvements in grain boundary velocity and piezoelectric amplitude, ultimately enhancing the piezoelectric performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Sayaka Fujie, Akihiko Ito
Summary: SrHfO3 films were prepared using MOCVD with different Sr precursors, and the effects of Sr content and deposition temperature on crystal phase and microstructure were investigated. Different Sr precursors resulted in varying Sr content in the films, leading to different crystal phases and microstructures. A single-phase orthorhombic SrHfO3 film was successfully prepared under specific conditions.
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2021)
Article
Crystallography
Feifei Lan, Rui Zhou, Ziyue Qian, Yuansha Chen, Liming Xie
Summary: In this study, Fe3O4 thin films with room-temperature ferrimagnetism were successfully grown using a simple chemical vapor deposition method. The films maintained good magnetic properties even at thicknesses as low as 4 nm. Various analysis techniques were used to study the structure and quality of the films, and it was found that the saturation magnetization was higher than that of bulk materials and the Verwey transition was observed. This work provides a new method for synthesizing ultrathin films with ferrimagnetic properties for applications in electronics, spintronics, and memory devices.
Article
Chemistry, Inorganic & Nuclear
Li-Mei Chang, Zhi-Zhou Ma, Jiandong Huang, Zhi-Gang Gu
Summary: This study reports a series of single and multiple (bi-varietal and tri-varietal) pillar-layered metal-organic framework (MOF) thin films (surface-coordinated MOF thin films, SURMOFs) with high lattice mismatch. The SURMOFs were successfully grown on the substrate surfaces with preferred [001]-orientation using a liquid-phase epitaxial (LPE) layer by layer pump method. The results show that the representative bi-varietal SURMOF with large lattice mismatch has different adsorption behavior from single SURMOFs, providing a new strategy to achieve tuning of the adsorption kinetics performance in sensing applications.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Paolo Giusto, Daniel Cruz, Tobias Heil, Nadezda Tarakina, Maddalena Patrini, Markus Antonietti
Summary: By chemically vapor depositing BCN thin films from a single source precursor, high transparency and refractive index values for reflective mirrors and lenses are achieved. These wide-bandgap semiconductor materials, with positive valence band, demonstrate stability against oxidation making them ideal for protective coatings and charge transport layers in solar cells. The simple and low-hazard method can open up possibilities for BCN thin films in optics and optoelectronics.
Article
Chemistry, Multidisciplinary
Geemin Kim, Sol An, Seok-Ki Hyeong, Seoung-Ki Lee, Myungwoong Kim, Naechul Shin
Summary: In this study, the combination of halide exchange process and patterning of metal halide perovskite thin films through vapor transport method was demonstrated, resulting in high-quality MAPbBr(3) pattern arrays with exceptional stability and detectivity in photodetectors. These results highlight the potential of chemical vapor deposition patterning of MHP materials in multicomponent optoelectronic device systems.
Article
Materials Science, Multidisciplinary
Antoine Raison, Nathalie Prud'homme, Wu Wang, Diana Dragoe, Nita Dragoe
Summary: We have successfully synthesized a multi-cationic oxide (MgCoNiCuZn)O through pulsed liquid injection chemical vapor deposition. The synthesis was carried out at temperatures ranging from 400 degrees C to 550 degrees C, using five metal-organic precursors solubilized in dimethoxyethane (DME). The microstructure of the material was analyzed using HRTEM with HAADF, SEM, EDS, XPS, and XRD techniques before and after annealing.
Article
Engineering, Chemical
David Redka, Milan Buttberg, Gerhard Franz
Summary: This article discusses the issue of longitudinal decreasing film thickness and its solution, providing a theoretical model and experimental verification. By predicting the sticking coefficient curve, the actual homogeneous film thickness can be obtained and shown to be in good agreement with the prediction. Additionally, it is found that there is a maximum achievable homogeneous film thickness in the tube, which can be understood as the coating efficiency.
