Surface Enhanced Raman Scattering from Porous Gold Nanofibers of Different Diameters

Lee, Hee-Ok; Chae, Weon‐Sik; Kim, Jeong Won; Yu, Hyunung

doi:10.1166/jnn.2011.3185

Cited by 45 publications

(88 citation statements)

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“…In addition, a intense and narrow diffraction peak (FWHM = 0 20 for Mg(OH) 2 and 0.16 for MgCO 3 ) indicates good crystallinity of the magnesium products. Subsequent thermal decomposition of Mg(OH) 2 and MgCO 3 converts into MgO. All the diffraction peaks of as-prepared MgO can be indexed to cubic structure with lattice constants a = 4 211, which is in a good agreement with the reported value in the literature (JCPDS 45-0946).…”

Section: Resultssupporting

confidence: 87%

“…In a typical synthesis of Mg(OH) 2 and MgCO 3 , the hydrothermal method is adopted using an autoclave with a teflon cup inside. The stainless-steel autoclave (40.0 mL) keeps the reaction condition at a constant temperature (130 C) and pressure (41 psi), respectively.…”

Section: Methodsmentioning

confidence: 99%

“…3(c)). Figure 4 shows TGA curves of as-prepared Mg(OH) 2 and MgCO 3 . Amorphous Mg(OH) 2 is known to decompose about 332 C to produce MgO and H 2 O, while MgCO 3 breaks down into MgO and CO 2 about 400∼500 C. It is clearly seen two distinct weight loss steps in Figure 4(a).…”

Section: Synthesis Of Mgo Granule and Its Precursors Via Common Ion Ementioning

confidence: 99%

“…[1][2][3][4] Their physical properties such as optical, electrical, thermal, mechanical properties are known as much influenced by composition, morphology, size, dispersity, porosity and surface area and these play an important role in their function for the pratical applications. To date, fabrication of novel self-assembled nanostructures with various morphologies is widely studied for advanced functions.…”

Section: Introductionmentioning

confidence: 99%

“…To date, fabrication of novel self-assembled nanostructures with various morphologies is widely studied for advanced functions. [1][2][3][4] Magnesium oxide (MgO) is a typical insulator with many advantages such as high thermal stability, high secondary electron emission yield, and wide band gap. It is a promising material that can be widely utilized for flame retardant, 5 6 catalyst support, 7 reinforcing regent, 8 superconductors 9 and substrates for growing various thinfilm materials.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of MgO Granule and Its Precursors via Common Ion Effect

Choi¹,

Lee²,

Yu³

2012

j nanosci nanotechnol

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It is well known that the shape and size of inorganic nanostructures have much influence on their optical, electrical and physical properties. MgO is a promising material with potential applications in a variety of fields such as catalyst support, reinforcing reagent and good component in superconductors. In this study, flower-like Mg(OH)2 and cubic MgCO3 have been successfully prepared via hydrolysis control of magnesium salt and alkaline solution with common ions under hydrothermal condition by the formation of nano-platelets assembly. Subsequent calcination converts both Mg(OH)2 and MgCO3 into the corresponding MgO granules of similar flower-like and cubic morphology and size to each precursor. The physical and chemical properties of MgO and its precursors of Mg(OH)2 and MgCO3 are investigated by SEM, XRD, FT-IR, and TGA analysis.

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Section: Resultssupporting

confidence: 87%

Section: Methodsmentioning

confidence: 99%

Section: Synthesis Of Mgo Granule and Its Precursors Via Common Ion Ementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis of MgO Granule and Its Precursors via Common Ion Effect

Choi¹,

Lee²,

Yu³

2012

j nanosci nanotechnol

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Liquid‐Gated Transistors Based on Reduced Graphene Oxide for Flexible and Wearable Electronics

Oliveira

Livio

Montes‐García

et al. 2019

Adv Funct Materials

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Graphene is regarded as the ultimate material for future flexible, high-performance and wearable electronics. Herein, we report a novel, robust, all-green, highly reliable (yield ≥ 99%) and up-scalable technology for wearable applications comprising reduced graphene oxide (rGO) thin-films as electroactive component in liquid-gated transistors (LGTs).Although the intrinsic electrical performance of rGO cannot compete with CVD graphene, its ease processability, excellent surface reactivity, and large-area coverage make rGO a formidable material for future flexible and wearable applications. We have established a novel protocol towards the high-yield fabrication of flexible rGO LGTs combining high robustness (>1.5h of continuous operation) with state-of-the-art performances, being similar to those of their rigid counterparts operated under liquid gating, including field-effect mobility of ca. 10 -1 cm 2 V -1 s -1 and transconductance of ca. 25 µS. Permeable membranes have been proved crucial to operate flexible LGTs under mechanical stress and with reduced amounts of solution (< 20 µL). Our rGO LGTs were operated in artificial sweat exploiting two different layouts based on lateral-flow paper fluidics. These approaches pave the road towards future real-time tracking of perspiration via a simple and cost-effective approach. The reported findings contribute to the robust and scalable production of novel graphene-based flexible devices, whose features fulfill the requirements of wearable electronics.Received: ((will be filled in by the editorial staff)) Revised: ((will be filled in by the editorial staff)) Published online: ((will be filled in by the editorial staff))

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Flexible Hybrid Sensor Systems with Feedback Functions

Takei

2020

Adv Funct Materials

103

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Skin‐like wearable sensors are regarded as key technologies toward home‐based healthcare, human–machine interfaces, robotics, prostheses, and enhanced augmented/virtual reality (AR/VR). Inspired by human somatosensory functions, artificial sensory feedback systems play vital roles in shaping interactions with complex environments and timely decision‐making. This study presents an overview of recent advances in feedback‐driven, closed‐loop skin‐inspired flexible sensor systems that make use of emerging functional nanomaterials and elaborate structures. Drawing on feedback solutions, four categories of sensor systems are highlighted, which include prosthesis‐ and AR/VR‐based human–machine interfaces, smartphone‐based approaches for point‐of‐care detection, and smart wearable displays for direct signal visualizations. Furthermore, the progress of machine learning on the reliable recognition of massive quantities of signals generated by flexible sensor networks is briefly discussed. The state‐of‐the‐art hybrid sensor techniques, along with other emerging strategies, will enable total sensory feedback loop systems to be developed for next‐generation electronic skins.

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Surface Enhanced Raman Scattering from Porous Gold Nanofibers of Different Diameters

Cited by 45 publications

References 0 publications

Synthesis of MgO Granule and Its Precursors via Common Ion Effect

Synthesis of MgO Granule and Its Precursors via Common Ion Effect

Liquid‐Gated Transistors Based on Reduced Graphene Oxide for Flexible and Wearable Electronics

Flexible Hybrid Sensor Systems with Feedback Functions

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