Search Results - "Chongmu Lee"

Role of the Interfaces in Multiple Networked One-Dimensional Core–Shell Nanostructured Gas Sensors by Park, Sunghoon, Ko, Hyunsung, Kim, Soohyun, Lee, Chongmu

“…This study examined the gas sensing mechanism of multiple networked core–shell nanowire sensors. The ethanol gas sensing properties of In2O3/ZnO core–shell…”
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Light-activated gas sensing of Bi2O3-core/ZnO-shell nanobelt gas sensors by Park, Sunghoon, Ko, Hyunsung, Lee, Sangmin, Kim, Hyounwoo, Lee, Chongmu

“…Bi2O3 is highly sensitive to low concentrations of NO2 in ambient air but almost insensitive to most other common gasses. On the other hand, its sensing…”
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Effects of substrate temperature on the microstructure and photoluminescence properties of ZnO thin films prepared by atomic layer deposition by Lim, Jongmin, Lee, Chongmu

“…Atomic layer deposition (ALD) is a very promising deposition technique for compound semiconductor films such as ZnO. However, there have been very few reports…”
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NO2 gas sensing properties of Au-functionalized porous ZnO nanosheets enhanced by UV irradiation by Mun, Youngho, Park, Sunghoon, An, Soyeon, Lee, Chongmu, Kim, Hyoun Woo

“…Porous ZnO nanosheets were synthesized by thermal evaporation. The morphology, crystal structure, and sensing properties of the ZnO nanosheets to NO2 gas at…”
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Synergistic effects of codecoration of oxide nanoparticles on the gas sensing performance of In2O3 nanorods by Park, Sunghoon, Sun, Gun-Joo, Kheel, Hyejoon, Lee, Wan In, Lee, Sangmin, Choi, Seung-Bok, Lee, Chongmu

“…n-In2O3 nanorods codecorated with n-Fe2O3 and p-Co3O4 nanoparticles were synthesized by the thermal evaporation of In2S3 powders in an oxidizing atmosphere…”
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Decoration of Co nanoparticles on ZnO-branched SnO2 nanowires to enhance gas sensing by Kim, Hyoun Woo, Na, Han Gil, Kwon, Yong Jung, Cho, Hong Yeon, Lee, Chongmu

“…We sputtered zinc-oxide (ZnO)-branched tin oxide (SnO2) nanowires with a Co shell layer with subsequent annealing to produce cobalt (Co) nanoparticles on the…”
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Synthesis and Gas Sensing Properties of TiO2-ZnO Core-Shell Nanofibers by Park, Jae Young, Choi, Sun-Woo, Lee, Jun-Won, Lee, Chongmu, Kim, Sang Sub

“…We fabricated TiO2–ZnO core‐shell nanofibers via a novel two‐step process. In the first step, the TiO2 core nanofibers were synthesized by electrospinning…”
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Enhanced NO2 gas sensing properties of WO3 nanorods encapsulated with ZnO by An, Soyeon, Park, Sunghoon, Ko, Hyunsung, Lee, Chongmu

“…The influence of the encapsulation of WO 3 nanorods with ZnO on the NO 2 gas sensing properties was examined. WO 3 -core/ZnO-shell nanorods were fabricated by…”
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Synthesis of nanograined ZnO nanorods functionalized with NiO nanoparticles and their enhanced hydrogen sensing properties by Jeong, Gyujin, Kim, Sanghyun, Nam, Bumhee, Lee, Chongmu

“…NiO nanoparticle (NP)-functionalized nanograined ZnO nanorods (NRs) were grown by using the thermal evaporation of ZnSe powders; this was followed by the…”
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Fe2O3/Co3O4 composite nanoparticle ethanol sensor by Mirzaei, Ali, Park, Sunghoon, Sun, Gun-Joo, Kheel, Hyejoon, Lee, Chongmu, Lee, Sangmin

“…In this study Fe 2 O 3 /Co 3 O 4 nanocomposites were synthesized by using a simple hydrothermal route. The X-ray diffraction analysis results showed that the…”
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Heterojunction of FeTiO3 Nanodisc and TiO2 Nanoparticle for a Novel Visible Light Photocatalyst by Kim, Yong Joo, Gao, Bifen, Han, Song Yi, Jung, Myung Hak, Chakraborty, Ashok Kumar, Ko, Taegyung, Lee, Chongmu, Lee, Wan In

“…For the first time, a single crystalline FeTiO3 nanodisc in the ilmenite phase has been synthesized by a hydrothermal reaction at 220 °C. The prepared FeTiO3…”
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Fabrication and CO gas-sensing properties of Pt-functionalized Ga2O3 nanowires by Kim, Hyunsu, Jin, Changhyun, An, Soyeon, Lee, Chongmu

“…Ga2O3 one-dimensional (1D) nanostructures were synthesized using an evaporation technique. The morphology, crystal structure and enhanced sensing properties of…”
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Enhanced CO gas sensing properties of Pt-functionalized WO3 nanorods by Park, Sunghoon, Kim, Hyunsu, Jin, Changhyun, Choi, Sun-Woo, Kim, Sang Sub, Lee, Chongmu

“…WO3 one-dimensional nanostructures were synthesized by using a simple catalyst-free thermal evaporation technique. Scanning electron microscopy observations…”
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Effects of functionalization of TiO2 nanotube array sensors with Pd nanoparticles on their selectivity by Park, Sunghoon, Kim, Soohyun, Park, Suyoung, Lee, Wan In, Lee, Chongmu

“…This study compared the responses of Pd-functionalized and pristine titanate (TiO2) nanotube arrays to ethanol with those to acetone to determine the effects…”
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NO2 sensing properties of WO3-decorated In2O3 nanorods and In2O3-decorated WO3 nanorods by Nam, Bumhee, Ko, Tae-Kyoung, Hyun, Soong-Keun, Lee, Chongmu

“…In 2 O 3 nanoparticle (NP)-decorated WO 3 nanorods (NRs) were prepared using sol–gel and hydrothermal methods. The In 2 O 3 NRs and WO 3 NPs were crystalline…”
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Subwavelength Optical Resonant Cavity-Induced Enhancement of the Near-Band-Edge Emission from ZnO-Core/SnO2-Shell Nanorods by Jin, Changhyun, Kim, Hyunsu, Ryu, Han-Youl, Kim, Hyoun Woo, Lee, Chongmu

“…ZnO-core/SnO2-shell nanorods were fabricated by a two-step process: thermal evaporation of ZnO powders and atomic layer deposition of SnO2. Transmission…”
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Porous silicon nanoparticles for cancer photothermotherapy by Hong, Chanseok, Lee, Jungkeun, Zheng, Hongmei, Hong, Soon-Sun, Lee, Chongmu

“…The in vitro cell tests and in vivo animal tests were performed to investigate the feasibility of the photothermal therapy based on porous silicon (PSi) in…”
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Light-activated NO2 gas sensing of the networked CuO-decorated ZnS nanowire gas sensor by Park, Sunghoon, Sun, Gun-Joo, Kheel, Hyejoon, Ko, Taegyung, Kim, Hyoun Woo, Lee, Chongmu

“…CuO-decorated ZnS nanowires were synthesized by the thermal evaporation of ZnS powders followed by a solvothermal process for CuO decoration. The NO 2 gas…”
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Intense ultraviolet emission from needle-like WO3 nanostructures synthesized by noncatalytic thermal evaporation by Park, Sunghoon, Kim, Hyunsu, Jin, Changhyun, Lee, Chongmu

“…Photoluminescence measurements showed that needle-like tungsten oxide nanostructures synthesized at 590°C to 750°C by the thermal evaporation of WO 3…”
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Intense near-infrared emission from undoped ZnTe nanostructures synthesized by thermal evaporation by Ko, Hyunsung, Park, Sunghoon, An, Soyeon, Lee, Chongmu

“…•ZnTe nanostructures with a range of morphologies and sizes were synthesized.•ZnTe nanostructures synthesized at 600°C showed intense infrared emission.•The…”
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