Article
Materials Science, Coatings & Films
Niklas Hellgren, Alexander Sredenschek, Andrejs Petruins, Justinas Palisaitis, Fedor F. Klimashin, Maurico A. Sortica, Lars Hultman, Per O. A. Persson, Johanna Rosen
Summary: Titanium boride thin films with varying B/Ti ratio were successfully grown using DC magnetron co-sputtering. The films exhibited high hardness and low resistivity, with different grain sizes and crystalline characteristics after annealing.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Zhen-Dong Wang, Zhen-Quan Lai
Summary: A single (200)-oriented TiN thin film was successfully deposited on a quartz substrate by DC magnetron reactive sputtering process, and the effects of sputtering pressure and substrate temperature on the properties of the film were studied. The results showed that a single (200)-oriented TiN thin film with increased grain size can be obtained over a wide range of substrate temperatures. The film exhibited low resistivity and high optical reflectance.
Article
Materials Science, Multidisciplinary
Ivan Castillo, Karuna Kara Mishra, Ram S. Katiyar
Summary: Vanadium sesquioxide (V2O3) is an important transition metal oxide with potential applications in electronic and memory devices. Thin films of V2O3 were successfully deposited on Si/SiO2/Ti/Pt substrates, exhibiting good crystallinity and composition. The films also showed interesting magnetic behavior at low temperatures. Raman spectroscopy studies provided further insights into the phase transition.
Article
Chemistry, Multidisciplinary
Zhenxue Zhang, Mikdat Gurtaran, Xiaoying Li, Hio-Ieng Un, Yi Qin, Hanshan Dong
Summary: In this study, N-type and P-type BiTe-based thin films were deposited on silicon, glass, and Kapton HN polyimide foil using magnetron sputtering technique. The morphology, microstructure, and phase constituents of the thin films were characterized by SEM/EDX, XRD, and TEM. The electrical conductivity, thermal conductivity, and Seebeck coefficient were measured by an advanced in-plane test system. The power output (open-circuit voltage and electric current) of the thin films was measured at different temperature gradients using a custom-built apparatus. The impact of deposition parameters and the dimensions of the thin films on the power output were investigated to optimize the thin-film flexible TE device for thermal energy harvesting.
Article
Materials Science, Multidisciplinary
Sihui Wang, Wei Wei, Yonghao Gao, Haibin Pan, Yong Wang
Summary: Ternary Ti-Zr-V getter films were deposited on copper substrates using DC and unipolar pulsed DC current modes. The DC film exhibited a finer microstructure and faster reduction kinetics of oxides compared to the unipolar pulsed DC film.
Article
Nanoscience & Nanotechnology
Xudong Tao, Bryan W. Stuart, Kening Wan, James W. Murray, Emiliano Bilotti, Hazel E. Assender
Summary: High-throughput roll-to-roll processes are desirable for scaling up the production of flexible thermoelectric generators. Postdeposition in-line annealing processes have been explored to improve the functional performance of as-deposited films, with static vacuum oven treatment showing the most significant enhancement in film crystallinity and power factor. Infrared and electron-beam post treatments during in-line annealing also showed improvements in the power factor of bismuth telluride thin films.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Samira Dorri, Justinas Palisaitis, Grzegorz Greczynski, Ivan Petrov, Jens Birch, Lars Hultman, Babak Bakhit
Summary: We studied the oxidation properties of sputter-deposited TiB2.5 coatings at different temperatures. The results showed that at 600 degrees Celsius, the coating exhibited protective oxidation behavior, and the structure of the oxide layer also changed. Moreover, decreasing the heating rate had a noticeable impact on the oxidation process.
Article
Physics, Applied
Lily Hallett, Ilya Charaev, Akshay Agarwal, Andrew Dane, Marco Colangelo, Di Zhu, Karl K. Berggren
Summary: The comprehensive study on molybdenum nitride (MoN) thin film deposition using direct current reactive magnetron sputtering revealed the material's potential for practical applications in low-temperature superconductors, such as single-photon detectors and transition-edge sensors. Additionally, the investigation of various deposition conditions showed the effect on the superconducting and electrical properties of the films, with meander-shaped single-photon detectors made from 5 nm MoN films demonstrating saturated quantum detection efficiency at the telecom wavelength of 1550 nm.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Daniel Cristea, Ioana-Laura Velicu, Luis Cunha, Nuno Barradas, Eduardo Alves, Valentin Craciun
Summary: The possibility to tune the elemental composition and structure of binary Me oxynitride-type compounds could lead to attractive properties. By adjusting the Ta and Ti content, the hardness, adhesion, and optical and electrical properties of the TaTiON thin films were affected.
Article
Chemistry, Physical
Roberto Villarroel, Dario Zambrano-Mera, Rodrigo Espinoza-Gonzalez, Katherine Paredes-Gil, Stefano Pantaleone, Luis Ballesteros, Gerko Oskam, Jose A. Garcia-Merino, Samuel A. Hevia, Guillermo Gonzalez-Moraga
Summary: This study investigated the hydrogenation process and photoactivity improvement of anatase TiO2 thin films produced by direct-current reactive magnetron sputtering. The structural changes and enhanced photoactivity were found to be related to the formation of defects at the surface of the hydrogenated films.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Xiang Dong, Yuanjie Su, Zhiming Wu, Xiangdong Xu, Zihao Xiang, Yuanlin Shi, Wenyu Chen, Jinhong Dai, Zhangying Huang, Tao Wang, Yadong Jiang
Summary: This study explored the effects of pulse frequency on the properties of VOx films prepared by reactive pulsed DC magnetron sputtering. It was found that adjusting the pulse frequency can influence the microstructure, surface morphology, and composition of the films. The temperature-dependent electrical properties of the films can also be tailored for specific applications by adjusting the pulse frequency.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Condensed Matter
G. V. Ashok Reddy, K. Naveen Kumar, Sheik Abdul Sattar, Hitha D. Shetty, Nunna Guru Prakash, R. Imran Jafri, C. Devaraja, B. C. Manjunatha, C. S. Kaliprasad, R. Premkumar, Sabah Ansar
Summary: Tungsten oxide (WO3) thin films were deposited on Fluorine Doped Tin Oxide (FTO) and Corning Glass (CG) glass substrate by DC magnetron sputtering. The effect of annealing temperature on surface morphology, structural, electrochromic (EC), and optical properties was investigated by various techniques. The results showed that annealing temperature influenced the crack formation, crystallinity, optical band gap, coloration efficiency, and diffusion coefficient of the WO3 thin films.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Chemistry, Physical
Naveed A. Khan, Behnam Akhavan, Zhong Zheng, Hongwei Liu, Cuifeng Zhou, Haoruo Zhou, Li Chang, Yu Wang, Yanping Liu, Lixian Sun, Marcela M. Bilek, Zongwen Liu
Summary: High entropy alloys (HEAs) are advanced materials with excellent properties, and the fabrication of high entropy oxide (HEO) thin films using radio frequency (RF) reactive magnetron sputtering from a custom-made target with different oxygen flow fractions showed improvements in phase transformation, grain size, and surface roughness. Increasing oxygen flow fraction led to higher oxygen concentration and water contact angle, with the film deposited at the highest oxygen flow fraction of 50% exhibiting the highest values.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Multidisciplinary
Cristian L. Teran, Jorge A. Calderon, Heiddy P. Quiroz, A. Dussan
Summary: This study investigates the resistive switching behavior of ZnO thin films deposited via DC magnetron sputtering. The research explores the structural and optical properties of the films, as well as the changes in transport mechanism due to high defect concentration in the samples. The correlation between synthesis parameters, structural characterization, and shape of bipolar switching effect is analyzed, providing insights into the fabrication and control of resistive random access memories.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Chemistry, Physical
Xinhong Chu, Qiusheng Xie, Xiaoming Zhang, Bingfeng Guo, Jianqing Liao, Xiujian Zhao
Summary: In this study, VO2 thin films with good optical properties were fabricated on practical float glass by magnetron sputtering and annealing method. The films showed high near-infrared switching efficiency and energy modulation ability, as well as high visible transmittance. The crystalline and microstructural characteristics of the films were investigated, and the effects of doping and annealing on the film properties were discussed.
Article
Chemistry, Multidisciplinary
Dominik M. Irber, Jakob Seidl, Damon J. Carrad, Jonathan Becker, Nari Jeon, Bernhard Loitsch, Julia Winnerl, Sonja Matich, Markus Doeblinger, Yang Tang, Stefanie Morkoetter, Gerhard Abstreiter, Jonathan J. Finley, Matthew Grayson, Lincoln J. Lauhon, Gregor Koblmueller
Article
Chemistry, Physical
Saiful M. Islam, Jeffrey D. Cain, Fengyuan Shi, Yihui He, Lintao Peng, Abhishek Banerjee, Kota S. Subrahmanyam, Yuan Li, Shulan Ma, Vinayak P. Dravid, Matthew Grayson, Mercouri G. Kanatzidis
CHEMISTRY OF MATERIALS
(2018)
Article
Engineering, Electrical & Electronic
Justin Easley, Erdem Arkun, Boya Cui, Michael Carmody, Lintao Peng, Matthew Grayson, Jamie Phillips
JOURNAL OF ELECTRONIC MATERIALS
(2018)
Article
Chemistry, Multidisciplinary
Saiful M. Islam, Lintao Peng, Li Zeng, Christos D. Malliakas, Duck Young Chung, D. Bruce Buchholz, Thomas Chasapis, Ran Li, Konstantinos Chrissafis, Julia E. Medvedeva, Giancarlo G. Trimarchi, Matthew Grayson, Tobin J. Marks, Michael J. Bedzyk, Robert P. H. Chang, Vinayak P. Dravid, Mercouri G. Kanatzidis
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Physics, Multidisciplinary
Lintao Peng, Spencer A. Wells, Christopher R. Ryder, Mark C. Hersam, Matthew Grayson
PHYSICAL REVIEW LETTERS
(2018)
Article
Physics, Applied
Samuel A. Miller, Ian Witting, Umut Aydemir, Lintao Peng, Alexander J. E. Rettie, Prashun Gorai, Duck Young Chung, Mercouri G. Kanatzidis, Matthew Grayson, Vladan Stevanovic, Eric S. Toberer, G. Jeffrey Snyder
PHYSICAL REVIEW APPLIED
(2018)
Article
Engineering, Electrical & Electronic
Xueting Yan, Seda Ogrenci-Memik, Matthew A. Grayson
IEEE ELECTRON DEVICE LETTERS
(2020)
Article
Physics, Applied
J. E. Medvedeva, I. A. Zhuravlev, C. Burris, D. B. Buchholz, M. Grayson, R. P. H. Chang
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Multidisciplinary Sciences
Sevdenur Arpaci, Victor Lopez-Dominguez, Jiacheng Shi, Luis Sanchez-Tejerina, Francesca Garesci, Chulin Wang, Xueting Yan, Vinod K. Sangwan, Matthew A. Grayson, Mark C. Hersam, Giovanni Finocchio, Pedram Khalili Amiri
Summary: There is growing interest in using antiferromagnetic materials for memory devices, with recent studies showing complications in interpreting resistive switching signals generated by high current densities in antiferromagnetic/heavy metal bilayers. Arpaci et al have introduced an experimental protocol to distinguish between magnetic and nonmagnetic switching signals in such structures, showcasing their method in IrMn3/Pt devices. The researchers utilized a six-terminal double-cross device to demonstrate reversible switching in the presence of IrMn3, effectively eliminating any non-magnetic switching artifacts.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Chulin Wang, Lintao Peng, Spencer A. Wells, Jeffrey D. Cain, Yi-Kai Huang, Lawrence A. Rhoads, Vinayak P. Dravid, Mark C. Hersam, Matthew A. Grayson
Summary: A scaling law in the conductivity of 2D materials with tunable concentrations of ionized impurity scatterers is demonstrated. Experimental data collapses onto a single 2DCS curve when mobility is scaled by r and gate voltage is shifted by V-s. The analysis can be applied to various 2D materials systems with tunable impurity density, advancing materials characterization and improving sensor and transistor performance.
Article
Engineering, Electrical & Electronic
Jiacheng Shi, Victor Lopez-Dominguez, Francesca Garesci, Chulin Wang, Hamid Almasi, Matthew Grayson, Giovanni Finocchio, Pedram Khalili Amiri
NATURE ELECTRONICS
(2020)
Article
Multidisciplinary Sciences
Mingyi Wang, Ramya Gurunathan, Kazuki Imasato, Nicholas R. Geisendorfer, Adam E. Jakus, Jun Peng, Ramille N. Shah, Matthew Grayson, G. Jeffrey Snyder
ADVANCED THEORY AND SIMULATIONS
(2019)
Article
Nanoscience & Nanotechnology
Boya Cui, Cornelius O. Audu, Yijun Liao, SonBinh T. Nguyen, Omar K. Farha, Joseph T. Hupp, Matthew Grayson
ACS APPLIED MATERIALS & INTERFACES
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Boya Cui, M. Grayson
QUANTUM SENSING AND NANO ELECTRONICS AND PHOTONICS XIV
(2017)
Article
Materials Science, Multidisciplinary
Boya Cui, D. Bruce Buchholz, Li Zeng, Michael Bedzyk, Robert P. H. Chang, Matthew Grayson