Výsledky vyhledávání - "Younghwan Kwon"

Akademický článek

Gelatin-Coated High-Sensitivity Microwave Sensor for Humidity-Sensing Applications

Autor: Junho Yeo, Younghwan Kwon

Publikováno v: Sensors, Vol 24, Iss 19, p 6286 (2024)

In this paper, the humidity-sensing characteristics of gelatin were compared with those of poly(vinyl alcohol) (PVA) at L-band (1 ~ 2 GHz) microwave frequencies. A capacitive microwave sensor based on a defected ground structure with a modified inter

Externí odkaz: https://doaj.org/article/e0ee47acf6ac438a8a2d4cc553081957

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Akademický článek

Humidity-Sensing Chipless RFID Tag with Enhanced Sensitivity Using an Interdigital Capacitor Structure

Autor: Junho Yeo, Jong-Ig Lee, Younghwan Kwon

Publikováno v: Sensors, Vol 21, Iss 19, p 6550 (2021)

An eight-bit chipless radio frequency identification tag providing humidity sensing and identification information is proposed. A compact, enhanced-sensitivity resonator based on an interdigital capacitor (IDC) structure is designed for humidity sens

Externí odkaz: https://doaj.org/article/d0fa87bb9c804e458194087124c93ded

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Akademický článek

Molecular Weight Effects of Biscarbazole-Based Hole Transport Polymers on the Performance of Solid-State Dye-Sensitized Solar Cells

Autor: Minseon Kong, Kyeong Seok Kim, Nguyen Van Nga, Yeonju Lee, Yu Seong Jeon, Yunsung Cho, Younghwan Kwon, Yoon Soo Han

Publikováno v: Nanomaterials, Vol 10, Iss 12, p 2516 (2020)

The leakage and volatilization of liquid electrolytes limit the commercialization of dye-sensitized solar cells (DSCs). As solid-state (ss) hole-transporting materials, free from leakage and volatilization, biscarbazole-based polymers with different

Externí odkaz: https://doaj.org/article/4dccdb9dae16429e8e70284d2ebeb7f3

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Novel heterologous binary redox mediator based on an ionic liquid and cobalt complex for efficient organic-solvent-free dye-sensitized solar cells

Autor: Yeonju Lee, Younghwan Kwon, Yunsung Cho, Kwang-Soon Ahn, Yoon Soo Han

Publikováno v: Journal of Industrial and Engineering Chemistry. 115:263-271

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2db272ee581d54542fbc8d2451b7f9b4
https://doi.org/10.1016/j.jiec.2022.08.007

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Study on thermal conductivities and mechanical properties of silicone/expanded graphite composites

Autor: Younghwan Kwon, Thi Thuy Nga Tran, Inseong Hwang, Minyoung Seo

Publikováno v: Molecular Crystals and Liquid Crystals. 734:100-110

In this study, series of expanded graphite (EG)-filled silicone composites were prepared by the bulk mixing and the solution methods to investigate the effect of thermal conductive EG particles and...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a7f1a72ad51beddf5ace34f50c71862
https://doi.org/10.1080/15421406.2021.1972218

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Synthesis and characterization of hole transporting materials containing bis(carbazole) groups for solid-state dye-sensitized solar cells

Autor: Suran Jung, Younghwan Kwon

Publikováno v: Molecular Crystals and Liquid Crystals. 734:118-128

In this study, bis(carbazole) derivatives, such as bis[N-(2-ethylhexyl)-carbazole-3-yl] (HTM_I) and bis[N-(2-ethylhexyloxylphenyl)-carbazole-3-yl] (HTM_II), were successfully synthesized for use as...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c07e0a2da57d566163633f42c0d5e538
https://doi.org/10.1080/15421406.2021.1972220

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Enhanced mechanical properties of porous silicone composites prepared by silane surface functionalization of hollow silica particles

Autor: Younghwan Kwon, Bo Min Kwak

Publikováno v: Molecular Crystals and Liquid Crystals. 734:89-99

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57366dc83f5257a740ab6ae908ee5176
https://doi.org/10.1080/15421406.2021.1972217

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Synthesis and Characterization of Reactive Energetic Plasticizers for Poly(glycidyl azide-co-tetramethylene glycol)-Based Polyurethane Binders

Autor: Yechen Shen, Younghwan Kwon

Publikováno v: Journal of Nanoscience and Nanotechnology. 21:4110-4115

Two reactive energetic plasticizers, 3-((2,2-dinitropropoxy)methoxy)prop-1-yne and 4-((2,2-dinitropropoxy)methoxy)but-1-yne which can react with an azido-containing poly(glycidyl azide-co-tetramethylene glycol) prepolymer by cupper-free 1,3-dipolor c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::635a92984f3ac205c70096e5cac43e2c
https://doi.org/10.1166/jnn.2021.19184

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Humidity sensing performance of defected ground structure‐based microwave sensors coated with PMMA , PHEMA , and PVA

Autor: Younghwan Kwon, Junho Yeo

Publikováno v: Microwave and Optical Technology Letters. 63:1194-1200

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::951ae11fe71709208b2e5482a4019772
https://doi.org/10.1002/mop.32746

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Synthesis and Characterization of Monosaccharide-Containing 2-(α-D-mannopyranosyloxy)Ethyl Methacrylate as a Surface Modifier for Hydrogels

Autor: Chanhong Chung, Younghwan Kwon, Shengnan Wu

Publikováno v: Journal of Nanoscience and Nanotechnology. 20:5609-5613

We introduce a hydrophilic monosaccharide-containing 2-(α-D-mannopyranosyloxy)ethyl methacrylate (ManEMA) in this study to achieve more extended and comfortable wear silicone hydrogel contact lenses by increasing water content. Molecular structure o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::674ef53f4dcabcf62eb998815a65274e
https://doi.org/10.1166/jnn.2020.17645

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