Woosung Lee

Visibility and Usability of Protective Motorcycle Clothing from the Perspective of Car Drivers

Gihyun Lee, Taehoon Kim, Jungmin Yun, Dae‐Young Lim et autres

Aiming to improve nighttime safety for motorcycle riders, this study evaluates the visibility and usability of LED and retroreflective-equipped protective motorcycle clothing versus conventional retroreflective gear. Ten male participants with driving experience were selected based on specific criteria, including normal or corrected …

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Development of color filter films based on photocurable cyanine dyes with enhanced stability for AR/VR OLED microdisplay

Young Ki Park, Jee Young Lim, Seung Ju Lim, Se Hun Kim et autres

High-resolution OLED microdisplays require advanced color filters with excellent optical performance, thermal stability, and chemical resistance. In this study, a novel cyanine dye (MDR4) was developed specifically for color filters suitable for AR/VR displays. The dye incorporates two methacrylate groups, enabling covalent …

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Design and structure-property relationship of highly efficient photo-acid generators for high-resolution patternable coatings

Lee Hoseong, Gyuseop Moon, Seong Hyun Jang, Byung Kyu Jeon et autres

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Collaborative utilization of complementary cyanine dyes for application in broad-range NIR-absorbing films

Hyunkyu Lee, Dong Jun Lee, Hong Mo Kim, Tae Gyu Hwang et autres

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Low-Temperature NiSi Formation via Microwave Annealing for Stable Metal-Induced Lateral Crystallization in 3D NAND Flash Memory

Ohhyuk Kwon, Sunhyeong Lee, Jongseon Seo, Geonhui Han et autres

This study introduces a novel Metal-Induced Lateral Crystallization (MILC) method, enhanced by a low-temperature pre-Microwave Annealing (MWA) step, for 3D NAND flash memory. Conventional MILC faces uneven growth due to simultaneous nucleation and grain growth, worsened in confined Si channels because crystalline …

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Wafer shape control in semiconductor manufacturing

Pradeep K. Subrahmanyan, Ram Karur, Won-Jae Lee, Olga Kucher et autres

Dielectric films have traditionally been used to address warp (referred to as Out of Plane Distortion (OPD) henceforth) caused during wafer processing. However, such films usually exhibit uniform stress and can only address global parabolic warp when the film thickness is held …

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Eco-friendly fabrication of colorimetric cotton sensors via UV-photografting and covalent immobilization for ammonia gas detection

Sanghyun Yoon, Seong-Jin Jang, Youngki Park, Su-Jin Ryu et autres

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Data-Driven Analysis of High-Temperature Fluorocarbon Plasma for Semiconductor Processing

Sung Kyu Jang, Woosung Lee, Ga In Choi, J.H. Kim et autres

The semiconductor industry increasingly relies on high aspect ratio etching facilitated by Amorphous Carbon Layer (ACL) masks for advanced 3D-NAND and DRAM technologies. However, carbon contamination in ACL deposition chambers necessitates effective fluorine-based plasma cleaning. This study employs a high-temperature inductively coupled …

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Autonomous Navigation Command Generation System for Underwater Robots Using LLM

Woosung Lee, Taeyeon Kim, Woen-Sug Choi

Recent advances in artificial intelligence, particularly in natural language processing with large language models (LLMs), enable robots to perform complex tasks. Integration with ROS to simulate control room conversation enhances robot autonomy, allowing them to automatically navigate and determine optimal paths. This …

Facile physical entrapment of halochromic dye via UV-photografting for the fabrication of colorimetric cotton sensors to detect toxic ammonia gas

Sanghyun Yoon, Youngki Park, Joonseok Koh, Woosung Lee

Textile-based halochromic gas sensors are useful for detecting volatile organic compounds (VOCs) such as ammonia, because they undergo changes that are distinguishable to the naked eye. Herein, we report the UV photografting system we developed for the fabrication of halochromic cotton sensors …

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Colorimetric cotton sensors fabricated by ultraviolet photografting for acidic gas detection: optimization and characterization

Young Ki Park, Su-Jin Ryu, Min‐Sun Kim, Jung Jin Lee et autres

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Durable and washable sheath/core-type polyamide 6-RhYK/PP colorimetric bicomponent fiber as reversible hydrogen chloride (HCl) gas sensor

Hyun Ju Oh, Young Ki Park, Jong Hyuk Bae, Jeeyoung Lim et autres

Fiber-based colorimetric sensors for hydrogen chloride (HCl) gas detection are advantageous due to their convenience, distinct visual warning, low cost, and electric power-free operation. Application of these sensors to textiles, such as clothes or gloves, requires consideration of sensing performance and durability, …

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