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Open AccessStructure-controllable growth of nitrogenated graphene quantum dots via solvent catalysis for selective C-N bond activation
Photophysical and photochemical properties of graphene quantum dots (GQDs) strongly depend on their morphological and chemical features. However, systematic and uniform manipulation of the chemical structures ...
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Article
Chemical vapour deposition
Chemical vapour deposition (CVD) is a powerful technology for producing high-quality solid thin films and coatings. Although widely used in modern industries, it is continuously being developed as it is adapte...
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Article
Thermal Effects of Microwave Reduced-Graphene-Oxide Coated Polyester Fabric on a Simulated Human Skin in Cool and Neutral Air Temperatures
Batteryless wearable technology has wide applications. In particular, human body surface temperature controlling fabrics can help regulate skin temperature in heat or cold. This study investigated surface temp...
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Article
Open AccessSilicon germanium photo-blocking layers for a-IGZO based industrial display
Amorphous indium- gallium-zinc oxide (a-IGZO) has been intensively studied for the application to active matrix flat-panel display because of its superior electrical and optical properties. However, the charac...
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Article
Graphene quantum dots prevent α-synucleinopathy in Parkinson’s disease
Graphene quantum dots inhibit the formation of alpha-synuclein fibrils and induce their dissociation in vitro, and display neuro-protective properties in in vivo models of Parkinson’s disease, with no apprecia...
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Article
Open AccessExtremely stable graphene electrodes doped with macromolecular acid
Although conventional p-type do** using small molecules on graphene decreases its sheet resistance (Rsh), it increases after exposure to ambient conditions, and this problem has been considered as the biggest i...
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Graphene-Based Nanomaterials
Graphenes are unique nanomaterials which was recently made compatible for physiological milieu, and thus find a way to be used as nanocarriers. The surface engineering abilities of nano-graphene oxides (nano-G...
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Open AccessHydrogenated monolayer graphene with reversible and tunable wide band gap and its field-effect transistor
Graphene is currently at the forefront of cutting-edge science and technology due to exceptional electronic, optical, mechanical, and thermal properties. However, the absence of a sizeable band gap in graphene...
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Open AccessGraphene quantum dots: structural integrity and oxygen functional groups for high sulfur/sulfide utilization in lithium sulfur batteries
Lithium–sulfur (Li–S) batteries are expected to overcome the limit of current energy storage devices by delivering high specific energy with low material cost. However, the potential of Li–S batteries has not ...
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Open AccessExfoliation and Raman Spectroscopic Fingerprint of Few-Layer NiPS3 Van der Waals Crystals
The range of mechanically cleavable Van der Waals crystals covers materials with diverse physical and chemical properties. However, very few of these materials exhibit magnetism or magnetic order, and thus the...
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Open AccessSurface-Engineered Graphene Quantum Dots Incorporated into Polymer Layers for High Performance Organic Photovoltaics
Graphene quantum dots (GQDs), a newly emerging 0-dimensional graphene based material, have been widely exploited in optoelectronic devices due to their tunable optical and electronic properties depending on th...
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Open AccessHigh-performance ultraviolet photodetectors based on solution-grown ZnS nanobelts sandwiched between graphene layers
Ultraviolet (UV) light photodetectors constructed from solely inorganic semiconductors still remain unsatisfactory because of their low electrical performances. To overcome this limitation, the hybridization i...
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Open AccessOrigin of White Electroluminescence in Graphene Quantum Dots Embedded Host/Guest Polymer Light Emitting Diodes
Polymer light emitting diodes (PLEDs) using quantum dots (QDs) as emissive materials have received much attention as promising components for next-generation displays. Despite their outstanding properties, tox...
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Open AccessActive control of all-fibre graphene devices with electrical gating
Active manipulation of light in optical fibres has been extensively studied with great interest because of its compatibility with diverse fibre-optic systems. While graphene exhibits a strong electro-optic eff...
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Growth dynamics and gas transport mechanism of nanobubbles in graphene liquid cells
Formation, evolution and vanishing of bubbles are common phenomena in nature, which can be easily observed in boiling or falling water, carbonated drinks, gas-forming electrochemical reactions and so on. Howev...
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Article
Graphene for displays that bend
Jong-Hyun Ahn and Byung Hee Hong discuss how graphene can be used in the development of flexible electronics.
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Open AccessUnconventional Transport through Graphene on SrTiO3: A Plausible Effect of SrTiO3 Phase-Transitions
High-k dielectric oxides are supposedly ideal gate-materials for ultra-high do** in graphene and other 2D-crystals. Here, we report a temperature-dependent electronic transport study on chemical vapor deposi...
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Length-dependent thermal conductivity in suspended single-layer graphene
Graphene exhibits extraordinary electronic and mechanical properties, and extremely high thermal conductivity. Being a very stable atomically thick membrane that can be suspended between two leads, graphene pr...
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Open AccessMultiple Virtual Tunneling of Dirac Fermions in Granular Graphene
Graphene charge carriers behave as massless Dirac fermions, opening the exciting possibility to observe long-range virtual tunneling of electrons in a solid. In granular metals, electron hops arising from seri...
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Extremely efficient flexible organic light-emitting diodes with modified graphene anode
Although graphene films have a strong potential to replace indium tin oxide anodes in organic light-emitting diodes (OLEDs), to date, the luminous efficiency of OLEDs with graphene anodes has been limited by a...