scholarly journals Quantifying Mn Diffusion through Transferred versus Directly Grown Graphene Barriers

2021 ◽  
Author(s):  
Patrick J. Strohbeen ◽  
Sebastian Manzo ◽  
Vivek Saraswat ◽  
Katherine Su ◽  
Michael S. Arnold ◽  
...  
Keyword(s):  
Mn Diffusion ◽  
Grown Graphene

scholarly journals Fabrication of Graphene Based Durable Intelligent Personal Protective Clothing for Conventional and Non-Conventional Chemical Threats

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 940
Author(s):  
Youngho Jin ◽  
Dongwon Ka ◽  
Seongon Jang ◽  
Deokjae Heo ◽  
Jin Ah Seo ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Protective Clothing ◽  
Chemical Sensor ◽  
High Weight ◽  
Chemical Warfare Agents ◽  
Chemical Warfare ◽  
Triboelectric Nanogenerator ◽  
Warfare Agents ◽  
Grown Graphene ◽  
Chemical Threats

Conventional or non-conventional chemical threat is gaining huge attention due to its unpredictable and mass destructive effects. Typical military protective suits have drawbacks such as high weight, bulky structure, and unpredictable lifetime. A durable, light, and scalable graphene e-fabric was fabricated from CVD-grown graphene by a simple co-lamination method. The sheet resistance was below 1 kΩ/sq over the wide surface area even after 1000 bending cycles. A graphene triboelectric nanogenerator showed the peak VOC of 68 V and the peak ICC of 14.4 μA and 1 μF capacitor was charged successfully in less than 1 s. A wearable chemical sensor was also fabricated and showed a sensitivity up to 53% for nerve chemical warfare agents (GD). DFT calculations were conducted to unveil the fundamental mechanisms underlying the graphene e-fabric sensor. Additionally, protection against chemical warfare agents was tested, and a design concept of graphene-based intelligent protective clothing has been proposed.

Effect of morphology on supercapacitive and optical properties of chemically grown Graphene-Nickel Oxide nanocomposites

2020 ◽  
Vol 34 (26) ◽  
pp. 2050229
Author(s):  
Fatemeh Zahraei ◽  
Ferydon Babaei ◽  
Ali Ehsani
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Nickel Oxide ◽  
Optical Data ◽  
X Ray ◽  
Capacitive Behavior ◽  
Liquid Phase Exfoliation ◽  
Grown Graphene ◽  
Hydrothermal Methods ◽  
Absorbance Spectra

Graphene-Nickel Oxide (G-NiO) nanocomposites with different morphologies, such as nanowires (NWs), nanorods (NRs) and nanoparticles (NPs), are synthesized by a combination of liquid-phase exfoliation (LPE) and hydrothermal methods. The synthesis of Graphene, morphology of Nickel Oxide (NiO) thin films and concentration of elements are analyzed using Raman Spectroscopy, Field Emission Scanning Electron Microscopy (FESEM) and Energy-dispersive X-ray spectroscopy (EDS), respectively. Furthermore, the capacitive behavior of nanocomposites is investigated using the Cyclic Voltammetry (CV). The optical properties of samples are extracted from measured absorbance spectra. Our results show that G-NiO NWs with the longest length have the largest specific capacitance (SC). In addition, optical data revealed that the adding Graphene to NiO thin films decreased the optical bandgap as well as the optical conductivity of nanocomposites increased with photon energy due to excitation electrons.

Ultrafast Electron−Optical Phonon Scattering and Quasiparticle Lifetime in CVD-Grown Graphene

ACS Nano ◽  
2011 ◽  
Vol 5 (4) ◽  
pp. 3278-3283 ◽  
Author(s):  
Jingzhi Shang ◽  
Ting Yu ◽  
Jianyi Lin ◽  
Gagik G. Gurzadyan
Keyword(s):  
Optical Phonon ◽  
Phonon Scattering ◽  
Optical Phonon Scattering ◽  
Quasiparticle Lifetime ◽  
Grown Graphene

Surface and electrochemical characterisation of CVD grown graphene sheets

2013 ◽  
Vol 35 ◽  
pp. 26-29 ◽  
Author(s):  
Elo Kibena ◽  
Marek Mooste ◽  
Jekaterina Kozlova ◽  
Margus Marandi ◽  
Väino Sammelselg ◽  
...  
Keyword(s):  
Graphene Sheets ◽  
Grown Graphene ◽  
Electrochemical Characterisation

In situ grown graphene-encapsulated germanium nanowires for superior lithium-ion storage properties

2013 ◽  
Vol 1 (31) ◽  
pp. 8897 ◽  
Author(s):  
Chao Wang ◽  
Jing Ju ◽  
Yanquan Yang ◽  
Yufeng Tang ◽  
Jianhua Lin ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Germanium Nanowires ◽  
Ion Storage ◽  
Grown Graphene ◽  
Storage Properties

Flexible and Transparent Dielectric Film with a High Dielectric Constant Using Chemical Vapor Deposition-Grown Graphene Interlayer

ACS Nano ◽  
2013 ◽  
Vol 8 (1) ◽  
pp. 269-274 ◽  
Author(s):  
Jin-Young Kim ◽  
Jongho Lee ◽  
Wi Hyoung Lee ◽  
Iskandar N. Kholmanov ◽  
Ji Won Suk ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
High Dielectric Constant ◽  
Dielectric Film ◽  
Chemical Vapor ◽  
Transparent Dielectric ◽  
Grown Graphene ◽  
High Dielectric

Intercalation of metal islands and films at the interface of epitaxially grown graphene and Ru(0001) surfaces

2011 ◽  
Vol 99 (16) ◽  
pp. 163107 ◽  
Author(s):  
Li Huang ◽  
Yi Pan ◽  
Lida Pan ◽  
Min Gao ◽  
Wenyan Xu ◽  
...  
Keyword(s):  
Grown Graphene ◽  
Metal Islands
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