Article
Nanoscience & Nanotechnology
Yoshinari Kimura, Hironori Tohmyoh
Summary: Electrical characteristics of Cu oxide thin films with different nanostructures were investigated for gas sensor applications. The sheet resistance was found to be proportional to the volume of nanostructures, and the geometric shape of nanostructures on the film had a significant effect on electrical characteristics.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Physical
Dong-Gyu Kim, Su-Hwan Choi, Won-Bum Lee, Gyeong Min Jeong, Jihyun Koh, Seunghee Lee, Bongjin Kuh, Jin-Seong Park
Summary: This study proposes an atomic layer deposition (ALD)-derived Al2O3 gate insulator design for high-performance In-Ga-Zn-O thin-film transistors, achieved by controlling in situ plasma-enhanced ALD and thermal ALD processes. The optimal device demonstrates exceptionally high mobility, robust resistance to hydrogen annealing, and reliable positive bias temperature stress.
Article
Physics, Condensed Matter
Marianna Batkova, F. Stobiecki, B. Szymanski, P. Kuswik
Summary: Thin films of SmB6 were prepared using pulsed laser deposition on various substrates, showing that post-deposition annealing at 600 degrees C can result in high-quality material. However, heating the substrate during deposition leads to higher resistance. The electrical resistance measurements revealed that the resistivity can be described by a two-channel model with activation energy and impurity band effects.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Physics, Applied
Zafrullah Jagoo, Zachary A. Lamport, Oana D. Jurchescu, L. E. McNeil
Summary: Understanding the physics of charge transport in organic semiconductors under illumination is crucial for developing new optoelectronic applications. In this study, the effects of monochromatic light on an organic thin-film transistor were investigated, revealing a photon-to-charge-carrier conversion efficiency exceeding 100%. This phenomenon was explained by a model involving space-charge limited photocharges and enhanced hole injection from the source electrode due to the lowering of the potential barrier by photogenerated electrons.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Seon Baek Lee, Siyoung Lee, Dae Gun Kim, Seung Hyun Kim, Boseok Kang, Kilwon Cho
Summary: This research presents a new simple bar-coating technique to rapidly and effectively form organic semiconductor thin-film patterns, offering potential breakthroughs in industrial applications in the field of organic electronics.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Nanoscience & Nanotechnology
Hala A. Al-Jawhari
Summary: The development of high-performing p-type semiconductors is crucial for advancing transparent electronics, with copper oxide being a promising material due to its native p-type conductivity and abundance. The review discusses the progress in synthesis and deposition of solution-based CuxO thin films for thin-film transistors, emphasizing the growing efforts in low-temperature methods, nanoscale patterning, and green synthesis. Additionally, the use of nonoxide copper-based semiconductors for solution-processed TFTs will be explored.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Sean P. Ogilvie, Matthew J. Large, Hannah J. Wood, Aline Amorim Graf, Frank Lee, Jonathan P. Salvage, Alice A. K. King, Alan B. Dalton
Summary: Research on assembling few-layer molybdenum disulfide nanosheets into thin films using Langmuir deposition shows a thousandfold conductivity enhancement, potentially applicable to all nanosheet networks.
Article
Instruments & Instrumentation
Wurui Ta, Xiaoyu Tang, Youhe Zhou
Summary: Interface stress and contact resistance are crucial for the safety and stability assessment of non-insulated superconducting pancake coils. A new electrometric method is developed to measure and analyze the interfacial stresses and contact resistances of composite superconducting coils under extremely low temperature conditions. The mechanical and electrical behaviors are coupled through an extended electro-mechanical contact model, which reveals the interaction mechanism of the coil. The proposed method is verified through comparison with experimental results, and provides a basis for evaluating the transport and mechanical performance of superconducting coils.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Nanoscience & Nanotechnology
Jung Wook Lim, Taeyoon Kim, Jieun Kim, Sun Jin Yun, Kwang Hoon Jung, Min A. Park
Summary: InxTiyO films deposited via atomic layer deposition method offer an excellent alternative to In2O3 films in TFT channels, allowing modulation of cut-off wavelength in the UV region while affecting the on-current level.
ADVANCED ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Kai Ma, Qing-Feng Zhang, Hui-Yu Zhang, Chang-Jiu Li, Cheng-Xin Li
Summary: This study investigates the impact of gas preheating temperature on particle impact velocity and temperature using Computational Fluid Dynamics (CFD) simulations, and finds that increasing the gas temperature leads to higher particle impact velocity and better film quality. The experimental results also show improvements in film compactness and electrical properties with gas preheating, and validate the self-adaptive repair mechanism of VCS when depositing metal films on rough substrates.
Article
Materials Science, Multidisciplinary
Jie Lu, Zi Wang, Di Xue, Ming Chu, Yingying Zhang, Lianlian Ji, Qi Wang, Xingyu Jiang, Yinghui Sun, Qian Miao, Bin Dong, Lizhen Huang, Lifeng Chi
Summary: In this study, a heteroepitaxy strategy was reported to fabricate highly aligned organic crystalline thin films with high charge mobility and air stability. The structured films showed excellent performance in UV light and gas detection.
ACS MATERIALS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Jie Lu, Zi Wang, Di Xue, Ming Chu, Yingying Zhang, Lianlian Ji, Qi Wang, Xingyu Jiang, Yinghui Sun, Qian Miao, Bin Dong, Lizhen Huang, Lifeng Chi
Summary: An epitaxy strategy was reported for fabricating highly aligned organic crystalline thin films with high charge mobility and responsive surfaces/interfaces.
ACS MATERIALS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Diederik Depla
Summary: The chemical stability of silver films with a thickness below 50 nanometer deposited on glass using DC magnetron sputtering was investigated. The films were exposed to a droplet of a HCl solution in a humid atmosphere and the affected area was monitored. It was found that the affected area increased linearly with time, indicating a diffusive mechanism. The diffusivity was measured as a function of the acid concentration, the presence of an aluminum seed layer, and film thickness, showing a linear correlation with acid concentration and a more complex behavior with film thickness.
Article
Chemistry, Multidisciplinary
Zhenfa Wu, Peng Shi, Ruofei Xing, Yuzhi Xing, Yufeng Ge, Lin Wei, Dong Wang, Le Zhao, Shishen Yan, Yanxue Chen
Summary: In this work, a large-area α-MoO3 thin film was fabricated by magnetron sputtering, and an all-solid-state synaptic transistor was designed and manufactured based on this film. The α-MoO3 channel exhibits reversible conductance modulation through proton intercalation/deintercalation, and various synaptic behaviors and multilevel data storage were demonstrated. A three-layer artificial neural network constructed on this synaptic transistor achieved high recognition accuracy in supervised pattern recognition.
Article
Materials Science, Ceramics
Jayaraman Senthilselvan, Rajeev R. Pillai, Ramasubramanian Kannan, B. Baskar, Krishna Valleti, J. Manonmani
Summary: In this study, nanocrystalline TiN films were deposited on FTO coated glass substrates by cathodic arc deposition for the first time. The crystalline phase, grain size, hardness, electrical resistivity, and optical properties of the TiN films were investigated. The results showed that the nanocrystalline TiN films had excellent mechanical and electrical properties, making them suitable for use as counter electrodes in dye-sensitized solar cells.
CERAMICS INTERNATIONAL
(2023)