Applied Surface Science
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#2Abdalla Abdal-hayH-Index: 21
Last. Saso IvanovskiH-Index: 38
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Abstract Poly(e-caprolactone) (PCL) chain cleavage results in the formation of polar terminal species, comprising hydroxy and carboxyl groups that enhance surface hydrophilicity and enable subsequent biofunctionalization. However, the direct effects of various acidic and basic treatments on 3D printed PCL scaffolds have not been studied from a functional perspective. In this study, we comprehensively assessed the influence of acid (hydrochloric, HCl) and base (sodium hydroxide, NaOH) catalyzed h...
#1Jacek J. Kolodziej (Jagiellonian University)H-Index: 15
#2Dawid Wutke (Jagiellonian University)
Last. Natalia Olszowska (Jagiellonian University)H-Index: 3
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Abstract Using angle-resolved photoelectron spectroscopy we study band structures of two dimensional electron gases (2DEGs) formed at surfaces of InAs(001) due to the band bending effect. We find that, for surfaces prepared by nondestructive methods very clear, model 2DEG bands are obtained. In contrast, for ion bombarded surfaces features looking as if 2DEG band contours were uniformly filled with signal are seen. We show that these observations may be explained within the one-electron Poisson-...
#1Jian ChenH-Index: 10
#2Adrian S. SabauH-Index: 16
Last. Donovan N. LeonardH-Index: 24
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Abstract Ti6Al4V specimens were exposed to high-energy laser pulses of 1.24 J/cm2 fluences per pulse using a two-beam optical configuration to attain laser-interference. In addition to the formation of periodic surface textures by laser-interference, scanning electron microscope (SEM) images demonstrated several microstructural changes on the surface processed. Moreover, the surface and subsurface of Ti6Al4V specimens were characterized for the as-received and laser-interference processed condit...
#1Tanzia Chowdhury (Sejong University)H-Index: 1
#2Romel Hidayat (Sejong University)H-Index: 1
Last. Won-Jun Lee (Sejong University)H-Index: 15
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Abstract Gaseous fluorine-containing molecules are crucial for controlled etching in semiconductor industries. This work presents the first-principle density functional theory (DFT) study on the modification of silicon nitride surface by fluorine-containing gases such as HF, CF4, CHF3, CH2F2, and CH3F. The reactions were modeled and simulated by assuming that the silicon nitride surface was exposed to a single fluorine-containing molecule to form different resulting surface groups and byproducts...
#1Namhun Kwon (DU: Dankook University)
#2Juyeon Yoo (DU: Dankook University)H-Index: 2
Last. Kun-Jae Lee (DU: Dankook University)H-Index: 12
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Abstract Transparent electrodes are usually manufactured by depositing electrical materials(silver, ITO, CNT, etc.) on selective substrates. Since the polymeric capping agent is inevitably using to forming certain morphology during the silver nanowires fabrication, the used polyvinylpyrrolidone (hereinafter, PVP) can be partially remain at the surface in [100] facet of the conductive materials with high surface energy, even after conducting washing for purpose of removing. The residual PVP adver...
#1Mingyu Xie (CAS: Chinese Academy of Sciences)
#2Wenjie Zhao (CAS: Chinese Academy of Sciences)H-Index: 23
Last. Yinghao Wu (CAS: Chinese Academy of Sciences)H-Index: 7
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Abstract Fabricating Slippery lubricant-infused porous surfaces(SLIPS), typically composed of lubricant and microstructured surface, is an effective way to solve the problem of marine anti-fouling. In the present work, acetone acted as a volatile solvent, and epoxy resin acted as a linking agent were mixed with one-dimensional material with different length (300 nm carbon nanotubes, 300 μm carbon fiber, and 1mm polyacrylonitrile fiber). After acetone volatilized, one-dimensional materials with d...
#1Jungyeon Ji (Seoul National University of Science and Technology)H-Index: 5
#2So Yeon Ko (Sookmyung Women's University)
Last. Yongchai Kwon (Seoul National University of Science and Technology)H-Index: 28
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Abstract In this study, hemin that has excellent catalytic activity is adopted as a catalyst component and other materials, such as metal organic framework (MOF) and carbon nanotube (CNT), are further used to alleviate drawbacks of hemin, such as location issue and molecular aggregation. Based on that, a new catalyst consisting of hemin-encapsulated MOF and CNT is developed (Hemin⊂MIL-88-NH2/CNT). To evaluate its catalytic activity, colorimetric and electrochemical evaluations are conducted. Whe...
#1Jing YeH-Index: 1
Last. Fan WangH-Index: 14
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#1Charu Negi (Doon University)H-Index: 1
#2Pankaj KandwalH-Index: 12
Last. Charu Dwivedi (Doon University)H-Index: 7
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Abstract This work reports tuning of the band gap of the titanium dioxide (TiO2) nanoparticles by carbon doping during sol-gel synthesis. Herein, polydiallyldimethylammonium chloride (PDADMAC), a cationic polymer has been used as the carbon source. The band gap, microstructure and the phase of the synthesized TiO2 can be engineered by controlling the concentration of PDADMAC. A significant reduction in the band gap energy from 2.96 eV to 2.37 eV was observed upon carbon doping. Phonon Confinemen...
#1Mi JungH-Index: 10
#1Mi Jung (Konkuk University)
Last. Young-Wan Choi (CAU: Chung-Ang University)H-Index: 11
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Abstract Unlike for noble metals, localized surface plasmon resonance (LSPR) of metallic nanodot array (NDA), which forms a surface oxide layer, has not been fully explored. We have investigated the surface oxide layers, LSPR, and surface-enhanced Raman scattering (SERS) of Au and Ti/TiO2 NDAs with similar shapes. Au NDA and Ti/TiO2 NDA with 80 ± 5 nm diameters were fabricated on indium tin oxide glass substrates using anodic aluminum oxide masks. The native oxide surface layer of Au NDA was ver...
Top fields of study
Analytical chemistry
X-ray photoelectron spectroscopy
Inorganic chemistry
Thin film
Materials science
Chemical engineering