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Plenary Speakers
GlobalFoundries Chair Prof. Cheng-kuo Lee
Department of Electrical and Computer Engineering
National University of Singapore, Singapore
Title of Plenary Speech
Progress in Sensors and Haptic Technology for Metaverse and Digital Twin
Abstract of Plenary Speech
With the aid of 5G-enhanced Internet of Things (IoT) infrastructure, various devices (e.g., sensors, actuators, energy harvesters, etc.) and systems have been developed toward the realization of Metaverse, which refers to a digital social network in a 3D virtual world that uses virtual reality (VR) technology to blur the boundaries between physical space and digital space. In addition to the traditional VR technologies based on visual and auditory devices, the immersive VR system also relies on wearable devices such as gloves, suits and shoes to enable full-body somatosensory perception/sensation, which has attracted a lot of attention recently. These wearable devices serve the dual purpose of sensing human motion and simulating human sensations, thus building a more profound connection between the real and virtual realms. Current haptic technology uses actuation devices based on various mechanisms, including tendon drivers, pneumatic actuators, and electrostatic actuators, to generate substantial forces that provide kinesthetic feedback, and electrotactile, vibrotactile, and thermal tactile to provide sensations to various mechanoreceptors in the skin for cutaneous stimuli. In addition, when sensors integrated with the artificial intelligence (AI) technology to enable the analysis function, such AI-assisted IoT systems, i.e., artificial intelligence of things (AIoT) system, achieve a higher level of intelligence for a wide range of applications. The integration of flexible sensors with AIoT technology not only enhances the productivity and efficiency of smart factory in the Digital Twin application scenarios but also enables more sustainable and environmentally friendly practices. It does not only provide multi-modality sensory information to intelligent robotic manipulation, ultimately leading to improved production yields and energy saving.
Prof. Dr. Hieng-Kiat Jun
Department of Mechanical and Material Engineering
University Tunku Abdul Rahman, Malaysia
Title of Plenary Speech
Overview on the application of carbon quantum dots in energy storage devices
Abstract of Plenary Speech
In recent years, alternative battery devices like supercapacitors, and electric double-layer capacitors (EDLCs) have been receiving plenty of attention. This brief review focuses on supercapacitor fundamentals and the potential application of carbon quantum dots (CQDs) in the devices. Small nanoparticles of carbon, known as CQD, which are less than 10 nm in size and contain special qualities, have become an essential tool for known specific delivery, biological research, and many therapeutic uses. The purpose of this review is also to assemble the recent research on CQDs synthesis with specific focus to biomass of coffee grounds, their characterization methods, and recent progress of CQDs in energy devices. For the synthesis of CQDs, two different types of synthesis methods i.e., a top-down approach and a bottom-up approach—are employed. The laser ablation method, electrochemical method, and arc-discharge method are examples of top-down techniques. The acidic oxidation, microwave-assisted method, and hydrothermal method are examples of bottom-up approaches. CQDs are now receiving more interest from the energy storage sector as additives in electrode material due to their distinctive electrical characteristics and critical function in hosting multiple functional groups superficially. As a result, energy density of supercapacitors has increased with the widespread usage of CQDs in electrode materials.
Keynote Speakers
President Dong-Sing Wuu
Department of Applied Materials and Optoelectronic Engineering
National Chi Nan University, Taiwan
Title of Keynote Speech
A novel multifunctional brightness enhancement film for display applications
Abstract of Keynote Speech
The brightness enhancement film (BEF) is one of the vital films for liquid crystal displays (LCDs), but suffers from the cosmetic, color shift and thermal stable issues due to the sharp apex angle of prism structure and multiple films stacking. Herein, we demonstrate a cheese-like porous BEF (p-BEF) with multiple advantages, i.e., brightness enhancement, diffusion, red color-shifted reduction, and the lower thermal expansion functionalities. During the UV imprinting and solvent evaporation process, the nano/submicron air pores were generated in the polymer prism structure, and the micropatterns were formed on the prism surface spontaneous. The inner pores were in the range of 30-450 nm, which met the simulation results (below 500 nm) and these can effectively scattering light to suppress the color shift due to the multiple internal reflection by the prism structure. By utilizing the pBEF into an LCD backlight, the brightness enhancement performance is corresponding to the regular BEF with additional diffuser (2-films) and up ~8% to beads prism (particle-based BEF), and the red color-shifted (Δxy) is reduced from 0.1677 to 0.1453. In addition, the p-BEF shows the wider angular intensity distribution compared with the pristine backlight stacking and lower CTE value in comparison with a regular BEF.
Distinguished Prof. Ying-Hao Chu
Department of Materials Science and Engineering
National Tsing Hua University, Taiwan
Title of Keynote Speech
Epitaxial Growth and Characterization of Bi2O2X (X=S, Se, Te) Semiconductors
Abstract of Keynote Speech
The search for 2D semiconductors with excellent electronic performance and stability in the ambient environment is urgent. Bi2O2X (X=S, Se, Te), a series of air-stable layered oxides, have emerged as promising new semiconductors with excellent electronic and optoelectronic properties. Studies demonstrate that its layered nature makes it ideal for fabricating electronic devices down to a few atomic layers. Currently, these materials are synthesized by either chemical solution or vapor methods. It remains a great chance to have control of thickness and uniformity. In this study, the physical vapor deposition method is adopted for depositing these materials on various oxide substrates. A pathway to integrate with Si will also be demonstrated. For practical applications, electronic devices such as thin film transistors and optoelectronic devices such as solar cells and photodetectors will be delivered with optimized performances.
Invited Speakers
Postdoctoral Scholar Sheng-Lun Liao
Department of Chemical Engineering
Stanford University, USA
Title of Invited Talk
Influence of Interfacial Solvation on SEI Formation in Lithium Metal Battery
Abstract of Invited Talk
In the domain of lithium-metal batteries, the composition of the solid electrolyte interphase (SEI) significantly affects the reactions between Li and the electrolyte, as well as the overall battery performance. While many studies have focused on the correlation between SEI composition and the solvation structure in bulk solutions, few have delved into the solvation structure at the surface, which plays a pivotal role in SEI formation. In this presentation, we share our recent observations on the relationship between SEI composition and the interfacial solvation. Both experimental measurements and atomistic simulations revealed an increased probability density of anions near a polar substrate, resulting in increased anion incorporation within the SEI. This highlights the direct impact of interfacial solvation on the formation of an anion-rich SEI.
Prof. Ngoc Dang Khoa Tran
Faculty of Mechanical Engineering
Industrial University of Ho Chi Minh City, Vietnam
Title of Invited Talk
Design and analysis of compliant bistable gripper for large circle objects
Abstract of Invited Talk
Compliant bistable grippers play an important role in applications of grasping, holding, and releasing various objects with the advantages of energy saving and high precision. This study presents the design of a compliant gripper composed of a bistable mechanism and connected with rigid-body clamping jaws. The mechanism is capable of clamping round objects of large diameter. Numerical methods are used to predict nonlinear behavior. A curved operating trajectory has been calculated for the clamping jaw to be able to clamp enormous circle objects firmly. An optimization method is applied to the design of the gripper structure in order to clamp and hold objects with a wide range of diameters. One prototype is designed to grip circular objects with a diameter of 65 to 75 millimeters. Analysis of the structural properties was conducted by using numerical methods and simulations, which resulted in an error of 3%. A demonstration of the correctness of the numerical method was also provided by the experiment. Analysis of the interaction effects between objects and bistable structures is performed. Objects with a larger diameter will have a reduced ability to grip tightly and will experience greater stress as a result. The gripper has the potential to be utilized in robotics, MEMS, and medical applications.