Article
Nanoscience & Nanotechnology
Dirk Konig, Michael Frentzen, Noel Wilck, Birger Berghoff, Igor Pis, Silvia Nappini, Federica Bondino, Merlin Muller, Sara Gonzalez, Giovanni Di Santo, Luca Petaccia, Joachim Mayer, Sean Smith, Joachim Knoch
Summary: The study shows that impurity doping in silicon nanowells can be adjusted by nanoscale electronic structure shifts induced by anions at surfaces (NESSIAS), enhancing electron conductivity. This finding deviates from traditional understanding, but is validated through comparison with experimental data and theoretical calculations, showing that other group IV semiconductors also respond similarly to the effect. Adequate nanowire cross-sections can be predicted through crystallographic analysis, laying the foundation for the development of undoped ultrasmall silicon electronic devices with significantly reduced gate lengths.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Zhi-Jun Zhao, Junseong Ahn, Dongheon Lee, Chan Bae Jeong, Mingu Kang, Jungrak Choi, Moonjeong Bok, Soonhyoung Hwang, Sohee Jeon, Sooyeon Park, Jiwoo Ko, Ki Soo Chang, Jung-Woo Choi, Inkyu Park, Jun-Ho Jeong
Summary: A rapid and simple method for fabricating suspended nanostructures via nanowelding lithography has been reported, showing enhanced performance in gas sensors and thermoacoustic speakers. This method can be applied to various shapes and materials of nanostructures, advancing the development of future nanodevices based on suspended nanostructures.
Article
Physics, Applied
Minglei Tang, Lining Liu, Chunyang Jia, Songhao Wu, Young Jin Lee, Guodong Wang, Yuanxiao Ma, Dae-Woo Jeon, Ji-Hyeon Park, Yiyun Zhang, Xiaoyan Yi, Yeliang Wang, Junxi Wang, Jinmin Li
Summary: In this study, the low frequency noise in beta-Ga2O3 nanowire-based electronic devices is analyzed. The noise spectrum exhibits different behaviors as the device size scales down, with narrower nanowires showing closer 1/f characteristics and thicker nanowires displaying evident 1/f(2) components. The results suggest that the 1/f noise mainly originates from trap states near the beta-Ga2O3 nanowire surface or interface, while the 1/f(2) components are contributed by groups of active deep traps through generation-recombination processes. The work provides insights into the dynamic behaviors of traps in beta-Ga2O3 materials and nanoscale electronic devices through low frequency noises.
APPLIED PHYSICS LETTERS
(2023)
Article
Computer Science, Artificial Intelligence
Rui Xu, Yuting Zhao, Zhaoyu Li, Shengying Zhu, Zixuan Liang, Yue Gao
Summary: This paper proposes a hierarchical multi-agent planning method based on two-stage two-sided matching (HMAP-TTM) to solve the problem of flexible assembly of large-scale lunar facilities by lunar robots. The simulation results show that the HMAP-TTM can generate plans with shorter mission time and require smaller communication costs than the baseline methods.
ADVANCED ENGINEERING INFORMATICS
(2023)
Article
Chemistry, Physical
Na Li, Congli He, Qinqin Wang, Jianshi Tang, Qingtian Zhang, Cheng Shen, Jian Tang, Heyi Huang, Shuopei Wang, Jiawei Li, Biying Huang, Zheng Wei, Yutuo Guo, Jiahao Yuan, Wei Yang, Rong Yang, Dongxia Shi, Guangyu Zhang
Summary: This study demonstrates the realization of large-scale flexible monolayer MoS2 devices integrating photodetectors and optoelectronic synapses. These devices have a wide range of applications including photodetection, optical communication, artificial visual perception system, and optical artificial neural network. By modulating gate voltages, the MoS2-based devices can function as both photodetectors and optoelectronic synapses. Moreover, they can implement various synaptic functions and neuromorphic characteristics, and even emulate associative learning behavior. These findings suggest great potential for the development of MoS2-based multifunctional optoelectronic devices with a simple structure.
Article
Chemistry, Physical
Chengyuan Yang, Zhaohong Mi, Huining Jin, Thirumalai Venkatesan, Ratnakar Vispute, Andrew A. Bettiol
Summary: We report a method for large-scale fabrication of negatively charged Silicon-vacancy (SiV-) centers in diamond membranes using MeV Helium ion implantation. Despite the polycrystalline structure of the diamond membranes, the SiV- centers exhibit a fluorescence lifetime comparable to those fabricated in single crystal diamonds. Patterning of SiV- centers with varying densities is demonstrated using a focused ion beam.
Article
Chemistry, Physical
Jin Yang, Jingbo He, Xiaobin Zou, Bo Sun, Yong Sun, Chengxin Wang
Summary: A new study reports a one-step method to achieve flexible and transparent silicon nanowires aerogel membrane, showcasing competitive carrier kinetics through the photoelectric performance.
Article
Optics
Takahiko Masuda, Ayami Hiramoto, Daniel G. Ang, Cole Meisenhelder, Cristian D. Panda, Noboru Sasao, Satoshi Uetake, Xing Wu, David P. DeMille, John M. Doyle, Gerald Gabrielse, Koji Yoshimura
Summary: The application of silicon photomultiplier (SiPM) technology has expanded due to its better photon detection efficiency compared to traditional photomultiplier tubes (PMTs), especially for weak-light detection at a single photon level. SiPMs with large detection area have recently become commercially available, allowing for low photon flux detection. However, SiPMs have drawbacks such as higher dark count rate, many readout channels, slow response time, and optical crosstalk, which need to be carefully considered. This study presents a compact large-area photon detection module integrated with SiPMs, overcoming these disadvantages and demonstrating higher photon detection efficiency and larger-area acceptance compared to conventional PMTs.
Article
Engineering, Electrical & Electronic
Qiaomu Hu, Zishan Zeng, Zinan Xiang, Kaiyuan Wang, Minming Zhang
Summary: The gradient-descent-based digitized adjoint method is a way to achieve high-efficiency inverse design of digital nanophotonic devices. However, the vanishing gradient problem may cause significant inefficiencies in the design of high-dimensional devices. To address this, we propose an adaptive gradient-descent with momentum method for large-scale inverse design. It uses first- and second-order momentum to update the device pattern, instead of the gradient. The simulation results demonstrate that this momentum-assisted adjoint method achieves higher efficiency and better optimization performance compared to the conventional gradient descent method, providing a powerful tool for designing novel digital nanophotonic devices.
IEEE PHOTONICS JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Lifan Nie, Long Zhang, Xinpeng Di, Qingyi Liu, Zi'ang Zhang, Quan Zhou, Zhaobo Dong, Zhidan Song, Shaohui Zhang, Gebo Pan
Summary: In this paper, an effective strategy for fabricating high-sensitive flexible capacitive pressure sensors is proposed. By combining BaTiO3 nanowires with thermoplastic polyurethane, a flexible porous dielectric layer is constructed to improve the sensor's performance. The results show that the fabricated sensor exhibits high sensitivity, fast response, and excellent durability, and it is also suitable for human activity monitoring. The expansive application prospect of BaTiO3 nanowires in flexible wearable electronics is also revealed.
Article
Chemistry, Physical
Lianjun Wen, Dong Pan, Lei Liu, Shucheng Tong, Ran Zhuo, Jianhua Zhao
Summary: This study reports the growth of large-composition-range pure-phase InAs1-xSbx nanowires on Si substrates by molecular beam epitaxy. The pure-phase nanowires were obtained by controlling the antimony content, nanowire diameter, and growth direction. The antimony was uniformly distributed in the nanowires and no spontaneous core-shell structures were observed. The nanowires exhibited good conductivity with high mobilities at 7K.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Dimitars Jevtics, Jack A. Smith, John McPhillimy, Benoit Guilhabert, Paul Hill, Charalambos Klitis, Antonio Hurtado, Marc Sorel, Hark Hoe Tan, Chennupati Jagadish, Martin D. Dawson, Michael J. Strain
Summary: This paper demonstrates the heterogeneous integration of devices from multiple material platforms onto a single chip using transfer-printing technique. The research shows successful serial integration of components within the footprint of the device size and device-to-device spacing in the 1 μm range.
OPTICAL MATERIALS EXPRESS
(2021)
Article
Chemistry, Multidisciplinary
Tabassom Arjmand, Maxime Legallais, Thi Thu Thuy Nguyen, Pauline Serre, Monica Vallejo-Perez, Fanny Morisot, Bassem Salem, Celine Ternon
Summary: This paper summarizes the key aspects of fabricating functional devices using bottom-up silicon nanowires. It briefly reviews the different ways of utilizing nanowires in functional devices and discusses the main properties of nanowires and nanonets. The paper also presents the main techniques for nanowire growth and manipulation, as well as the different families of nanowire-based transistors and their integration routes and electrical performance. It emphasizes the importance of key technological elements for the integration of silicon nanowires and reviews the main application areas for these devices.
Article
Nanoscience & Nanotechnology
Kuibo Lan, Zhi Wang, Xiaodong Yang, Junqing Wei, Yuxiang Qin, Guoxuan Qin
Summary: A high-performance flexible silicon nanowires (SiNWs) sensor was successfully fabricated for acetone detection, demonstrating its potential applications in environmental safety, food quality, and healthcare. The sensor exhibited good sensitivity, selectivity, and repeatability at room temperature, and showed improved performance under mechanical bending conditions.
Article
Chemistry, Physical
Xin Xu, Pan Xue, Meng Gao, Yibin Li, Zijun Xu, Yu Wei, Zhengjian Zhang, Yang Liu, Lei Wang, Hongbin Liu, Bowen Cheng
Summary: Continuous research into nanomaterials, structural design, and fabrication processes is necessary due to the rapid progress in flexible electronic devices. One-dimensional nanowires, with their unique structures and exceptional properties, have become vital components for various flexible electronic devices. Nanowire assembly using printing and coating techniques, such as bar coating, spray coating, dip coating, blade coating, and 3D printing, is explored in this review. The potential and challenges of flexible electronic devices based on assembled nanowires via printing and coating are also discussed.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Kwang Heo, Byung Yang Lee, Hyungwoo Lee, Dong-guk Cho, Muhammad Arif, Kyu Young Kim, Young Jin Choi, Seunghun Hong
Article
Multidisciplinary Sciences
Myoung-Jae Lee, Ji-Hoon Ahn, Ji Ho Sung, Hoseok Heo, Seong Gi Jeon, Woo Lee, Jae Yong Song, Ki-Ha Hong, Byeongdae Choi, Sung-Hoon Lee, Moon-Ho Jo
NATURE COMMUNICATIONS
(2016)
Article
Nanoscience & Nanotechnology
Do Hoon Lee, Jonghyurk Park, Jong-Kwon Lee, Kwang Heo, Dong-Jin Lee, Ye Rim Lee, Byung Yang Lee
Article
Multidisciplinary Sciences
JeeWoo Park, Zoe Z. Yan, Huanqian Loh, Sebastian A. Will, MartinW. Zwierlein
Article
Nanoscience & Nanotechnology
Ji Ho Sung, Soonyoung Cha, Hoseok Heo, Sangwan Sim, Juho Kim, Hyunyong Choi, Moon-Ho Jo
Article
Nanoscience & Nanotechnology
Jaeseok Kim, Sungjoon Park, Houk Jang, Nikesh Koirala, Jae-Bok Lee, Un Jeong Kim, Hong-Seok Lee, Young-Geun Roh, Hyangsook Lee, Sangwan Sim, Soonyoung Cha, Chihun In, Jun Park, Jekwan Lee, Minji Noh, Jisoo Moon, Maryam Salehi, Jiho Sung, Sang-Soo Chee, Moon-Ho Ham, Moon-Ho Jo, Seongshik Oh, Jong-Hyun Ahn, Sung Woo Hwang, Dohun Kim, Hyunyong Choi
Article
Nanoscience & Nanotechnology
Hoseok Heo, Ji Ho Sung, Ji-Hoon Ahn, Fereshte Ghahari, Takashi Taniguchi, Kenji Watanabe, Philip Kim, Moon-Ho Jo
ADVANCED ELECTRONIC MATERIALS
(2017)
Article
Nanoscience & Nanotechnology
Wonbin Song, Jong-Kwon Lee, Mi Sic Gone, Kwang Heo, Woo-Jae Chung, Byung Yang Lee
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Multidisciplinary
Ju-Hyuck Lee, Kwang Heo, Konstantin Schulz-Schonbagen, Ju Hun Lee, Malay S. Desai, Hyo-Eon Jin, Seung-Wuk Lee
Article
Materials Science, Multidisciplinary
Yeon Beom Jeong, Sung Hwan Hong, Jeong Tae Kim, Hae Jin Park, Young Seok Kim, Hoo Dam Lee, Jong Kook Lee, Sang Chul Mun, Yun Jung Hwang, Kwang Heo, Ki Buem Kim
METALS AND MATERIALS INTERNATIONAL
(2019)
Article
Physics, Multidisciplinary
Jee Woo Park, Bumsuk Ko, Y. Shin
PHYSICAL REVIEW LETTERS
(2018)
Article
Chemistry, Physical
Kwang Heo, Hyo-Eon Jin, Han Kim, Ju Hun Lee, Eddie Wang, Seung-Wuk Lee
Article
Chemistry, Physical
In Woo Park, Jinhyeok Choi, Kyu Young Kim, Junseok Jeong, Dham Gwak, Yonghun Lee, Yong Hoe Ahn, Young Jin Choi, Young Joon Hong, Woo-Jae Chung, Minbaek Lee, Kwang Heo
Article
Nanoscience & Nanotechnology
Sang Hyun Yoon, Dham Gwak, Hong Hee Kim, Hwi Je Woo, Jinhee Cho, Jin Woo Choi, Won Kook Choi, Young Jae Song, Chang-Lyoul Lee, Jongnam Park, Kwang Heo, Young Jin Choi
Article
Physics, Applied
Tae-Eon Park, Byoung-Chul Min, Hee Gyum Park, Jaejun Lee, Moon-Ho Jo, Chaun Jang, Hyun Cheol Koo, Heon-Jin Choi, Joonyeon Chang
APPLIED PHYSICS LETTERS
(2017)