Article
Materials Science, Multidisciplinary
Shunsuke Nakamura, Mutsumi Sugiyama
Summary: The effect of hydrogen on the deposition of SnS films was investigated, revealing that the structure, composition, and carrier concentration of the films can be controlled by varying the supply of H-2 gas. It was also found that hydrogen does not act as a carrier, but rather modifies the film's composition using RF magnetron sputtering.
Article
Materials Science, Multidisciplinary
Matteo Favaro, Alessandro Patelli, Riccardo Ceccato, Sandra Dire, Emanuela Callone, Giulia Fredi, Alberto Quaranta
Summary: This study investigated the co-deposition of thin polymeric films loaded with zinc oxide nanoparticles using atmospheric pressure plasma jet technology. The crystalline ZnO nanoparticles were produced by wet chemistry and injected into the plasma with an aerosol buffer. The polymeric encapsulation of ZnO led to the recovery of UV excitonic emission and a remarkable increase in luminescence yield.
Article
Chemistry, Physical
Thomas Gischkat, Max Dobeli, Andreas Bachli, Roelene Botha, Zoltan Balogh-Michels
Summary: The wetting properties of ion-beam-sputtered Yttria thin films were investigated in this work, with water contact angles ranging from 67 to 96 degrees. The concentration of embedded argon atoms was found to influence the contact angle.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Jesse Daughtry, Abdulrahman S. Alotabi, Liam Howard-Fabretto, Gunther G. Andersson
Summary: The research aims to examine the properties required for producing thin films of TiO2 using RF plasma, with the ability to modify the films through heating to induce defects and change their characteristics. Different deposition regimes were studied to minimize unwanted contaminants and the resulting TiO2 films showed a lower cost alternative to single-crystal TiO2 with known elemental composition and modifiable properties.
NANOSCALE ADVANCES
(2021)
Article
Materials Science, Multidisciplinary
Chen Yufeng, Geming Wang, Sun Zhengfeng, Wang Shenggao, Mao Yangwu, Deng Quanrong, Yang Jingjing
Summary: This work focuses on the fabrication and characterization of LaMnO3+delta thin films, exploring the evolution of magnetic characteristics and the effects under different deposition conditions. The interactions between ferromagnetism and antiferromagnetism in the films were discovered and analyzed.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Engineering, Electrical & Electronic
Gang Yang, Binbin Weng
Summary: This study investigated the reactive ion etching of PbSe thin films on silicon in a CH4/H-2/Ar plasma atmosphere. Various etching parameters were systematically studied and it was found that the self-bias, etching rate, and surface smoothness are affected by factors such as rf power, gas ratio, and process pressure. The study also demonstrated the impact of CH4 percentage on the etching rate and surface quality.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Physics, Fluids & Plasmas
Jingkai Jiang, Peter J. Bruggeman
Summary: This study utilized molecular beam mass spectrometry to characterize ion fluxes generated by a modulated radiofrequency-driven atmospheric pressure plasma jet in a homogeneous gas environment. The research investigated the influence of RF modulation frequency on ion fluxes and found significant differences in dynamics between positive and negative ions, highlighting the tremendous impact of memory effects on plasma propagation and pre-ionization.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Robert S. Matos, Nilson S. Ferreira, Stefan Talu, Atefeh Ghaderi, Shahram Solaymani, Marcelo A. Pires, Edgar Aparecido Sanches, Henrique D. da Fonseca Filho
Summary: We investigated the morphological and 3D spatial properties of Cu/Ni thin films obtained by a co-deposition process. The films displayed different morphologies and rough profiles dictated by their singular directional inhomogeneities. The percolative properties of the Cu/Ni samples were similar while distinct from the Cu sample. The surface microtexture of the films showed similar spatial complexity. The sputtering process can be employed to tune the percolative properties, multifractality, and scaling symmetry of the films, inducing different vertical growth dynamics.
Article
Materials Science, Multidisciplinary
Y. Romaguera-Barcelay, A. S. Pedraca, J. A. Moreira, A. Almeida, P. B. Tavares, W. R. Brito, R. S. Matos, M. A. Pires, E. P. Pinto, H. D. da Fonseca Filho
Summary: In this study, BiZn0.5Ti0.5O3 thin films were successfully deposited by RF Magnetron sputtering and their crystalline structure, microstructure, and microtexture were carefully studied. The films exhibited polycrystalline nature with lattice parameters a = 3750 angstrom and c = 4664 angstrom, and their structure and morphology were found to be influenced by sintering temperature.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Prerit Tandon, Akhila Priya Kotti, R. Venkatesh, Amaresh Chandra Mishra, Kumud Singh
Summary: Adjustable phosphorus ion concentration is used in the electrodeposition process to control the surface roughness, crystallite size, and coercivity of the NiFeP alloy coating on copper microwire, resulting in an enhanced magnetoimpedance ratio. The maximum MI ratio of 378% and sensitivity of 25 %/Oe is achieved using an electrodeposition bath with 1 mM P ion. This improvement is attributed to the reduction in crystallite size and magnetocrystalline anisotropy through the formation of amorphous deposits with optimized P atom incorporation and reduced surface roughness. Experimental results are compared with an analytical model to extract parameters related to the circumferential permeability of the NiFeP magnetic film.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Pedro Centeno, Miguel Alexandre, Filipe Neves, Elvira Fortunato, Rodrigo Martins, Hugo Aguas, Manuel J. Mendes
Summary: The increasing energy demand and efficiency bottleneck of monocrystalline silicon solar cell technology are driving the research and development of alternative photovoltaic materials. Copper-arsenic-sulfide (CAS) compounds are promising p-type absorber candidates for solar cells due to their availability, suitable bandgap, and high absorption coefficient. This comprehensive study explores the structural and optoelectronic properties of CAS thin-films deposited via radio-frequency magnetron co-sputtering, using both a commercial Cu target and a Cu-As-S target with material sourced from local mines in Portugal. The results show the potential application of CAS films as wide-bandgap semiconductors in third-generation photovoltaic devices.
Article
Chemistry, Multidisciplinary
Giovanni Morello, Stefania Milanese, Maria Luisa De Giorgi, Nicola Calisi, Stefano Caporali, Francesco Biccari, Naomi Falsini, Anna Vinattieri, Marco Anni
Summary: Halide perovskites are recognized as real contenders for the next generation of optoelectronic devices due to their high optical efficiency, low-cost fabrication, and wide variety in composition and bandgap. This study reports the amplified spontaneous emission (ASE) properties of CsPbBr3 films obtained through RF-magnetron sputtering. The films exhibited ASE over a broad temperature range, with the best performance occurring at around 50 K. The results indicate the potential for large-area, high-quality perovskite thin films for optoelectronic applications.
Article
Chemistry, Multidisciplinary
Max Powers, James A. Stewart, Remi Dingreville, Benjamin K. Derby, Amit Misra
Summary: The formation mechanism of hierarchical morphologies in co-deposited, immiscible alloy thin films originates from the significant influence of a local compositional driving force near the surface of the growing thin film, triggering the simultaneous evolution of multiple concentration modulations.
Article
Materials Science, Multidisciplinary
Seon Mi Ahn, Gil Su Jang, Du Yun Kim, Nong-Moon Hwang
Summary: In this study, deposition parameters for the formation of alpha-phase tungsten were identified by varying the substrate bias and argon pressure in an RF magnetron sputtering system. The negative bias triggered the phase transformation of tungsten from beta to alpha, and the effect of bias on the formation of alpha-phase tungsten and film resistivity became more pronounced as pressure increased.
ELECTRONIC MATERIALS LETTERS
(2023)
Article
Engineering, Chemical
Ju Sung Kim, Jinsung Choi, Young June Hong, Eun Ha Choi
Summary: An Ar-H-2 arc plasma jet under atmospheric pressure was used to remove tin (Sn) contamination on the multi-thin film surface of the Extreme ultraviolet (EUV) mirror. By converting Sn into SnH4, a gaseous compound that can be easily exhausted, the contamination was effectively removed. The discharge conditions, such as the content of H-2 in the mixture gas, applied power, and treatment time, were varied to investigate the plasma characteristics and the degree of Sn removal. The optimal case was found to be treating for at least 1 min under an applied power of 500 W using 5% of H-2 mixed content.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Rui Hu, Taiki Furukawa, Yi Gong, Lin Chen, Xiangke Wang, Xingyou Tian, Masaaki Nagatsu
ADVANCED MATERIALS INTERFACES
(2018)
Article
Polymer Science
Masaaki Nagatsu, Kazuya Sugiyama, Iuliana Motrescu, Mihai Alexandru Ciolan, Akihisa Ogino, Naohisa Kawamura
JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY
(2018)
Article
Chemistry, Multidisciplinary
Mihai Alexandru Ciolan, Iuliana Motrescu, Kuniaki Sugiura, Dumitru Luca, Masaaki Nagatsu
Correction
Chemistry, Physical
Rui Hu, Taiki Furukawa, Xiangke Wang, Masaaki Nagatsu
Article
Nanoscience & Nanotechnology
Risa Yamashiro, Akikazu Sakudo, Masaaki Nagatsu
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2019)
Correction
Physics, Applied
Anchu Viswan, Han Chou, Kuniaki Sugiura, Masaaki Nagatsu
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Correction
Physics, Applied
Teguh Endah Saraswati, Shun Tsumura, Masaaki Nagatsu
JAPANESE JOURNAL OF APPLIED PHYSICS
(2019)
Correction
Chemistry, Multidisciplinary
Rui Hu, Taiki Furukawa, Yi Gong, Lin Chen, Xiangke Wang, Xingyou Tian, Masaaki Nagatsu
ADVANCED MATERIALS INTERFACES
(2019)
Correction
Chemistry, Multidisciplinary
Rui Hu, Taiki Furukawa, Xiangke Wang, Masaaki Nagatsu
ADVANCED FUNCTIONAL MATERIALS
(2020)
Correction
Nanoscience & Nanotechnology
Rui Hu, Mihai Alexandru Ciolan, Xiangke Wang, Masaaki Nagatsu
Article
Radiology, Nuclear Medicine & Medical Imaging
Teguh Endah Saraswati, Fitri Nela Sari, Patimah Patimah, Nestri Handayani, Yuliati Herbani, Masaaki Nagatsu
Summary: A facile route was developed to produce biocompatible magnetic nanocomposite iron oxide/carbon, confirmed through various analytical techniques. The nanocomposite showed compatibility with biological entities and was found to be practically non-toxic in an in-vivo acute toxicity assay.
BIOMEDICAL PHYSICS & ENGINEERING EXPRESS
(2021)
Correction
Radiology, Nuclear Medicine & Medical Imaging
Anchu Viswan, Han Chou, Akikazu Sakudo, Masaaki Nagatsu
BIOMEDICAL PHYSICS & ENGINEERING EXPRESS
(2019)
Article
Physics, Fluids & Plasmas
Iuliana Motrescu, Mihai Alexandru Ciolan, Kazuya Sugiyama, Naohisa Kawamura, Masaaki Nagatsu
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2018)
Article
Chemistry, Multidisciplinary
Rui Hu, Taiki Furukawa, Xiangke Wang, Masaaki Nagatsu
ADVANCED FUNCTIONAL MATERIALS
(2017)
Article
Chemistry, Physical
Rui Hu, Taiki Furukawa, Xiangke Wang, Masaaki Nagatsu
APPLIED SURFACE SCIENCE
(2017)
