Article
Chemistry, Multidisciplinary
Maritza Mujica, Amar Mohabir, Pralav P. Shetty, Wesley R. Cline, Daniel Aziz, Matthew T. McDowell, Victor Breedveld, Sven Holger Behrens, Michael A. Filler
Summary: In this study, we demonstrate the growth of single-crystalline i-Si, i-Si/n-Si, and SixGe1-x/SiyGe1-y nanowires via the Geode process. The use of microcapsules improves scalability while maintaining programmability of the nanowires. Heat and mass transport limitations introduced by the microcapsule wall are shown to be negligible, allowing for consistent compositional control. The efficient transport also minimizes structural variations in nanowires grown in microcapsules with different sizes and wall thicknesses.
Article
Chemistry, Multidisciplinary
Steven Gottlieb, Louis Pigard, Yu Kyoung Ryu, Matteo Lorenzoni, Laura Evangelio, Marta Fernandez-Regulez, Colin D. Rawlings, Martin Spieser, Francesc Perez-Murano, Marcus Mueller, Armin W. Knoll
Summary: The study presents a probe-based thermal-imaging technique that can achieve sub-10 nm lateral resolution and sub-10 ms pixel rate. Through investigating microphase-separated PS-b-PMMA block copolymers, the study reveals asymmetry in the heat flux signal and the heat flux ratio between both polymers in different geometries. Comparison with coarse-grained molecular simulations shows enhanced transport along the macromolecular backbone and Kapitza resistance at internal interfaces of the self-assembled structure.
Article
Chemistry, Multidisciplinary
Shiqi Liu, Jie Yang, Lin Xu, Jingzhen Li, Chen Yang, Ying Li, Bowen Shi, Yuanyuan Pan, Linqiang Xu, Jiachen Ma, Jinbo Yang, Jing Lu
Summary: This study investigates an ultra-thin Si FinFET with a width of 0.8 nm for the first time using ab initio quantum transport simulations. Even with a gate length down to 5 nm, the optimized ultra-thin Si FinFET still meets the high-performance applications' requirements. The overall performance of the simulated ultra-thin Si FinFET is even comparable with that of the typical two-dimensional FETs, showing the potential for Si FinFETs to be scaled down to sub-10 nm gate length by scaling down the width while maintaining a perfect structure.
Review
Physics, Multidisciplinary
Ruge Quhe, Lin Xu, Shiqi Liu, Chen Yang, Yangyang Wang, Hong Li, Jie Yang, Qiuhui Li, Bowen Shi, Ying Li, Yuanyuan Pan, Xiaotian Sun, Jingzhen Li, Mouyi Weng, Han Zhang, Ying Guo, Linqiang Xu, Hao Tang, Jichao Dong, Jinbo Yang, Zhiyong Zhang, Ming Lei, Feng Pan, Jing Lu
Summary: Two-dimensional semiconductors show promising electrostatics and carrier transportability, offering potential for scaling FETs' gate length down to the sub-10 nm region without compromising device performance. Many 2D FETs exhibit excellent performance for high performance and/or low power applications, extending Moore's law down to 1 to 2-nm gate length.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Yanxia Lin, Yu Cao, Sujuan Ding, Panpan Zhang, Lin Xu, Chenchen Liu, Qianlan Hu, Chuanhong Jin, Lian-Mao Peng, Zhiyong Zhang
Summary: Aligned semiconducting carbon nanotubes have the potential to be an alternative to silicon in scaled field-effect transistors (FETs) due to their easy miniaturization and high energy efficiency. Researchers have successfully fabricated aligned carbon nanotube FETs at the same dimensions as low-node silicon technology, demonstrating size and electronic performance superior to silicon transistors. By introducing a full-contact structure, nanotube FETs with scaled contacted gate pitch comparable to the 10 nm silicon technology node have been created, exhibiting higher carrier mobility and Fermi velocity.
NATURE ELECTRONICS
(2023)
Editorial Material
Engineering, Electrical & Electronic
Rongmei Chen
Summary: Carbon nanotube transistors with high performance and integration density can be achieved by utilizing a full-contact structure that reduces the nanotube-electrode contact length.
NATURE ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Pengfei Zhang, Zhangliu Tian, Yikun Kang, Bowen He, Zaiwang Zhao, Chin-Te Hung, Linlin Duan, Wei Chen, Yun Tang, Jiaguo Yu, Liqiang Mai, Ye-Fei Li, Wei Li, Dongyuan Zhao
Summary: Well-aligned sub-10 nm TiO2 nanowire arrays with controllable corrugated structure were synthesized using a unique monomicelle-directed assembly method. The arrays exhibited excellent charge dynamic properties and high photon-to-current efficiency, making them suitable for efficient water splitting.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Engineering, Electrical & Electronic
Yanjie Shao, Jesus A. del Alamo
Summary: In this letter, we present the achievement of sub-10-nm diameter vertical nanowire p-type tunnel FETs. By utilizing a broken-band GaSb/InAsSb heterostructure design and a top-down fabrication approach, we successfully demonstrate a 9-nm diameter VNW TFET with excellent performance, indicating the potential viability of GaSb-based complementary TFETs in future ultra-scaled logic technologies.
IEEE ELECTRON DEVICE LETTERS
(2022)
Article
Optics
Mitchell Semple, Kyle G. Scheuer, Ray G. DeCorby, Ashwin K. Iyer
Summary: Emerging electromagnetic inverse design methods have pushed nanofabrication techniques to their limits, aiming to achieve maximum performance from plasmonic aperture-based metasurfaces. This study focuses on the importance of fine nanowire and nanogap features in achieving strong miniaturization of plasmonic nanoapertures, using metamaterial-lined apertures as an example. The researchers successfully patterned features as small as 10 nm over wide areas required for metasurfaces using a helium focused ion beam microscope.
Article
Instruments & Instrumentation
Khaled Kaja, Denis Mariolle, Nicolas Chevalier, Adnan Naja, Mustapha Jouiad
Summary: It has been demonstrated that a new operating technique of electric force microscopy can improve the spatial resolution of surface electrical property measurements under specific conditions, particularly for epitaxial graphene layers. This method not only enables stable imaging but also allows for acquiring surface electrical property data without applying DC bias voltages simultaneously, making it suitable for high-speed scanning experiments.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Nanoscience & Nanotechnology
Namjo Kim, Shinyoung Choi, Seong-Jun Yang, Jewook Park, Jun-Ho Park, Nguyen Ngan Nguyen, Kwanghee Park, Sunmin Ryu, Kilwon Cho, Cheol-Joo Kim
Summary: This study demonstrates the formation of quasi-one-dimensional graphene nanoribbon grids via seed-assisted chemical vapor deposition on Ge(100) substrates. The resulting GNR grids exhibit excellent lateral stitching and high electrical performance, showing potential for integration with various nanodevices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Baisheng Sa, Xiaotian Shen, Shuchang Cai, Zhou Cui, Rui Xiong, Chao Xu, Cuilian Wen, Bo Wu
Summary: This paper systematically explores the intrinsic mobility in the Ga2SSe monolayer and the quantum transport properties of sub-10 nm Ga2SSe field-effect transistors (FET) through theoretical calculations. It is found that the Ga2SSe monolayer has high intrinsic electron mobility, but it is significantly restrained by phonon scattering. The n-type doped Ga2SSe FETs exhibit distinguished transport properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Yanjie Shao, Marco Pala, David Esseni, Jesus A. del Alamo
Summary: This study investigates the diameter scaling behavior of broken-band GaSb/InAs vertical nanowire Esaki diodes, and finds a great potential for ultra-low power applications. The research includes fabrication and characterization of devices, as well as modeling and simulations.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Nanoscience & Nanotechnology
Itaru Yanagi, Ken-ichi Takeda
Summary: In this study, SiN membranes with thicknesses of 3-7 nm were fabricated using the SiO2 sacrificial layer process. It was found that SiN membranes as thin as 3.07 nm could be successfully formed under certain conditions, and nanopores were fabricated in these membranes via dielectric breakdown. The current noise of the membranes fabricated using the SiO2 sacrificial layer process was approximately 3/5 of that of membranes fabricated using the poly-Si sacrificial layer process.
Article
Nanoscience & Nanotechnology
Fan Wu, Jie Ren, Yi Yang, Zhaoyi Yan, He Tian, Guangyang Gou, Xuefeng Wang, Zijian Zhang, Xin Yang, Xing Wu, Tian-Ling Ren
Summary: MoS2 is a promising candidate for the next generation semiconductor devices due to its atomic thickness and electrical properties, but the limited resolution of photolithography makes it challenging to fabricate short channel length MoS2 transistors. This study demonstrates a method using aluminum self-oxidization to create an effective isolation between source and drain electrodes, successfully achieving 10 nm transistors with good performance. The self-oxidized short channel length 2D transistors offer new opportunities for scaling down 2D material-based transistors with improved precision.
ADVANCED ELECTRONIC MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Qitao Hu, Si Chen, Shi-Li Zhang, Paul Solomon, Zhen Zhang
IEEE ELECTRON DEVICE LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Si Chen, Chao Luo, Yujing Zhang, Jun Xu, Qitao Hu, Zhen Zhang, Guoping Guo
IEEE ELECTRON DEVICE LETTERS
(2020)
Article
Chemistry, Analytical
Qitao Hu, Si Chen, Zhenqiang Wang, Zhen Zhang
Summary: Hydrophobic ions can cause interference in ion detection in sensors, but incorporating hydrophilic polyethylene glycol can significantly reduce this interference. This improvement enhances selectivity for Na+ detection and enables multiplexed detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Electrical & Electronic
Yingtao Yu, Si Chen, Qitao Hu, Paul Solomon, Zhen Zhang
Summary: Utilizing Schottky junction tri-gate SiNWFETs (SJGFET) in biochemical sensors can achieve ultra-low device noise generation, significantly lower than previously reported sensors. This device can effectively mitigate the adverse effects of intrinsic noise in sensing applications.
IEEE ELECTRON DEVICE LETTERS
(2021)