Article
Chemistry, Physical
Shuai Chen, Jianglei Qin, Jianzhong Du
Summary: Polymer films are widely used in various applications such as biomaterials, electronic devices, food packaging, and gas separation membranes. This study successfully fabricated cross-linkable and biodegradable polymer films, which can be tuned by varying the cross-linking density.
ACTA PHYSICO-CHIMICA SINICA
(2022)
Article
Physics, Multidisciplinary
Ze-Kun Jiang, Ruo-Jing Ren, Yi-Jun Chang, Wen-Hao Zhou, Yong-Heng Lu, Xiao-Wei Wang, Li Wang, Chang -Shun Wang, Alexander S. Solntsev, Xian-Min Jin
Summary: We report the observation of dynamic localization for quantum-correlated biphotons, including both the generation and propagation aspects. Our experimental results demonstrate the effectiveness of various dynamic modulation parameters in protecting quantum states without introducing complex topologies.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Byoungwook Park, Hongkyu Kang, Yeon Hee Ha, Jehan Kim, Jong-Hoon Lee, Kilho Yu, Sooncheol Kwon, Soo-Young Jang, Seok Kim, Soyeong Jeong, Soonil Hong, Seunghwan Byun, Soon-Ki Kwon, Yun-Hi Kim, Kwanghee Lee
Summary: Polymer blends, special types of polymeric semiconductors, offer new opportunities for next-generation electronics due to their versatile functionalities. Studies show that the formation of nano-network structures in an insulating polymer matrix can enhance charge carrier mobility.
Article
Crystallography
Yangfeng Li, Yixiao Li, Jie Zhang, Yi Wang, Tong Li, Yang Jiang, Haiqiang Jia, Wenxin Wang, Rong Yang, Hong Chen
Summary: Despite high misfit dislocation densities, indium gallium nitride (InGaN) demonstrates high luminous efficiency. The existence of potential minima is explained as a screening mechanism for non-radiative recombination centers to prevent carrier trapping by defects. Indirect observations support the existence of localized states, but some experimental evidence, such as the localization of indium clusters observed using transmission electron microscopy, remains controversial. Direct observation of carrier transportation between localized states using temperature-dependent and excitation power-dependent photoluminescence enriches the experimental evidence.
Review
Chemistry, Multidisciplinary
Febin Paul, Shashi Paul
Summary: Organic memory devices are a rapidly evolving field, but there is a lack of consensus in terms of material behavior and switching mechanisms. This study aims to understand influencing factors in organic memory devices by compiling various works and analyzing charge storage mechanisms and different switching mechanisms.
Article
Chemistry, Multidisciplinary
Shuntaro Nagashima, Yuji Yahagi, Masamichi Nishino, Takehiro Yamaoka, Kosuke Nakagawa, Junhao Wang, Shin-ichi Ohkoshi, Hiroko Tokoro
Summary: This study reports the magnetic domain of molecule-based magnets and investigates the magnetization behavior of two different compounds using magnetic force microscopy. The results show that the magnetic domains exhibit a maze pattern and have different magnetization polarizations at different temperatures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Zheng Wang, Wei Xiao, Huiyong Yang, Shengjie Zhang, Yukun Zhang, Kai Sun, Ting Wang, Yujun Fu, Qi Wang, Junyan Zhang, Tsuyoshi Hasegawa, Deyan He
Summary: The deposition location of metal atoms is closely related to the crystallinity of the ion transport layer, and filament variability during different cycles and devices is the primary reason for the observed operating characteristic variability. Moreover, the evolution of the dielectric layer and metal filament must be considered for the operation of ion devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Won-Bin Lee, Seong Been Kim, Kyoung-Whan Kim, Kyung-Jin Lee, Hyun Cheol Koo, Gyung-Min Choi
Summary: In this study, spin accumulation in the 2DEG of an InAs quantum well is investigated, showing that the Rashba-Edelstein effect dominates the Spin Hall effect in the system, and induces a spin-orbit torque on the ferromagnetic metal in the 2DEG/insulator/FM heterostructure.
Article
Multidisciplinary Sciences
Kwangrae Kim, Hoon Kim, Jonghwan Kim, Changil Kwon, Jun Sung Kim, B. J. Kim
Summary: A potential divergence in the static excitonic susceptibility of the candidate material Ta2NiSe5 was observed using Raman spectroscopy, revealing evidence for electronically-driven phase transition.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
A. Aharon-Steinberg, T. Volkl, A. Kaplan, A. K. Pariari, I. Roy, T. Holder, Y. Wolf, A. Y. Meltzer, Y. Myasoedov, M. E. Huber, B. Yan, G. Falkovich, L. S. Levitov, M. Hucker, E. Zeldov
Summary: This study provides a visualization of vortices in an electron fluid and discovers a new mechanism of surface-induced para-hydrodynamics. The presence of vortices in a circular chamber is determined by the aperture size and the electron diffusion length. This finding opens up new possibilities for electron fluidics in high-mobility electron systems.
Article
Engineering, Chemical
Chi-Yang Tsai, Ying-Ling Liu
Summary: Solid polymer electrolytes (SPEs) have attracted significant attention for their potential in high energy density batteries. However, they face challenges of low ionic conductivity and poor interfacial compatibility. This study introduces ion conductor-containing chains on the pore walls of porous PVDF membranes to build lithium-ion-conduction pathways in SPEs. The resulting SPEs exhibit significantly improved ionic conductivity, electrochemical stability, and suppression of lithium dendrite formation.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Bojing Lu, Jigang Du, Jianguo Lu, Siqin Li, Jingyun Huang, Ruqi Yang, Pingwei Liu, Lingxiang Chen, Fei Zhuge, Zhizhen Ye
Summary: Amorphous Nb2O5 is proposed as the resistive switching layer for conductive bridge random access memory, showing excellent switching performance with a high on/off ratio and ultralow operating voltage. The multilevel resistive switching characteristic is demonstrated by changing the compliance current in the Nb2O5 device, with each resistance state being uniform and distinguishable. The migration of Cu and the existence of a Cu conductive filament are identified through a broken-down device, explaining the low operating voltage. Amorphous Nb2O5 devices exhibit promising resistive switching performance for memory applications.
ACS MATERIALS LETTERS
(2023)
Article
Multidisciplinary Sciences
Xin Huang, Yangyu Guo, Yunhui Wu, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Zhongwei Zhang, Sebastian Volz, Tomoki Machida, Masahiro Nomura
Summary: This study experimentally confirms the existence of phonon Poiseuille flow in graphitic systems, providing important insights into phonon hydrodynamics and advances in heat manipulation applications.
NATURE COMMUNICATIONS
(2023)
Article
Mechanics
Robin Vikram Singh, Santwana Mukhopadhyay
Summary: This study investigates the effects of a continuous line heat source on the thermal and elastic behavior of a homogeneous isotropic unbounded elastic medium. The analytical solution is derived using the potential function approach and Laplace transform technique, and compared with other thermoelasticity theories. The new model presented in this study demonstrates important observations regarding the thermal and elastic behavior of the material.
Article
Optics
Shuai Wang, Shuai Liu, Yilin Liu, Shumin Xiao, Zi Wang, Yubin Fan, Jiecai Han, Li Ge, Qinghai Song
Summary: Optical microcavities are important in the study of chaos, but most explorations focus on their input and output properties rather than directly interrogating the internal wave dynamics. By introducing a local index perturbation to map the internal mode patterns, chaotic modes with staggered mode spacings can be distinguished. This technique has enabled the experimental verification of complete chaos assisted tunneling (CAT) in the optical domain with unprecedented certainty.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Xiaoqian Liu, Bokun Cho, Li-Yan Chan, Wei Lek Kwan, Chi-Lik Ken Lee
Article
Optics
Xin-Hao Li, Jeffrey B. Chou, Wei Lek Kwan, Asma M. Elsharif, Sang-Gook Kim
Article
Chemistry, Multidisciplinary
Li-Min Chen, Ziruo Hong, Wei Lek Kwan, Cheng-Hsueh Lu, Yi-Feng Lai, Bao Lei, Chuan-Pu Liu, Yang Yang
Article
Chemistry, Multidisciplinary
Cheng-Hsuan Chou, Wei Lek Kwan, Ziruo Hong, Li-Min Chen, Yang Yang
ADVANCED MATERIALS
(2011)
Article
Chemistry, Multidisciplinary
Swee Ling Lam, Xiaoqian Liu, Fangli Zhao, Chi-Lik Ken Lee, Wei Lek Kwan
CHEMICAL COMMUNICATIONS
(2013)
Article
Materials Science, Multidisciplinary
Wei Lek Kwan, Bao Lei, Yue Shao, Yang Yang
CURRENT APPLIED PHYSICS
(2010)
Article
Chemistry, Organic
Li-Min Tan, Zhi-Yu Sem, Wei-Yuan Chong, Xiaoqian Liu, Hendra, Wei Lek Kwan, Chi-Lik Ken Lee
Article
Energy & Fuels
Rui Jie Peh, Yanru Lu, Fangli Zhao, Chi-Lik Ken Lee, Wei Lek Kwan
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2011)
Review
Materials Science, Multidisciplinary
Tae Whan Kim, Yang Yang, Fushan Li, Wei Lek Kwan
NPG ASIA MATERIALS
(2012)
Article
Chemistry, Multidisciplinary
Chi-Lik Ken Lee, Zhi-Yu Sem, Hendra Hendra, Xiaoqian Liu, Wei Lek Kwan
JOURNAL OF FLOW CHEMISTRY
(2013)
Article
Biochemistry & Molecular Biology
Li Yan Chan, Joshua Ding Wei Teo, Kevin Shyong-Wei Tan, Keitaro Sou, Wei Lek Kwan, Chi-Lik Ken Lee
Proceedings Paper
Education, Scientific Disciplines
Da Yang Tan, Wei Lek Kwan, Li Ling Apple Koh, Gim-Yang Maggie Pee, Khim Tiam Lur, Zhen Yong Yeo
Summary: This study examines the implementation advantages and challenges of virtual dissection activity in a blended synchronous learning environment and finds that this activity is beneficial for both on-site and online students to sustain their social and cognitive presence.
PROCEEDINGS OF THE 2022 IEEE GLOBAL ENGINEERING EDUCATION CONFERENCE (EDUCON 2022)
(2022)
Proceedings Paper
Education, Scientific Disciplines
Wei Lek Kwan, Gim-Yang Maggie Pee, Li Ling Apple Koh, Mei Xuan Tan
Summary: Machine learning methods were used to analyze students' responses to clicker and exam questions. Students who performed poorly in certain clicker questions also struggled with exam questions that required analytical thinking. Early identification of such students through clicker questions could aid in targeted interventions.
PROCEEDINGS OF THE 2022 IEEE GLOBAL ENGINEERING EDUCATION CONFERENCE (EDUCON 2022)
(2022)
Proceedings Paper
Computer Science, Software Engineering
Li Ling Apple Koh, Mei Xuan Tan, Gim-Yang Maggie Pee, Chee Huei Lee, Massimiliano Colla, Wei Lek Kwan
Summary: This article describes the remote online e-exams conducted in a first year undergraduate course, utilizing timed grading, a large pool of questions, and bonus components to ensure fair assessment and discourage discussion among students. It also provided incentives for students to remain focused on their own questions, even without webcam surveillance. The article reflects on the implementation and lessons learned from this online exam format, from both student and instructor perspectives.
IEEE TALE2021: IEEE INTERNATIONAL CONFERENCE ON ENGINEERING, TECHNOLOGY AND EDUCATION
(2021)
Proceedings Paper
Green & Sustainable Science & Technology
Selina Patra, Shih Teen Whaung, Wei Lek Kwan
LEVERAGING ENERGY TECHNOLOGIES AND POLICY OPTIONS FOR LOW CARBON CITIES
(2017)
