Tag Archives:graphene
Layer-dependent fast electron transfer at the Zn-phthalocyanine-few-layer graphene interface: theory explains
The photo-induced effective interfacial charge separation in Zn phthalocyanine/few-layer graphene heterojunctions has been a promising observation for fabrication of efficient energy-conversion devices. Few-layer graphene are two-dimensional (2D) systems composed of one-atom-thick honeycomb layers of sp2 -hybridized carbon
Ultra-wideband absorption based on wavelength-insensitive phase matching
Due to high carrier mobility, the graphene has attracted enormous interests in developing high-speed photodetectors. In this study, for practical high-performance photodetectors, we focus on the remarkable enlargement of absorption bandwidth in the graphene perfect absorbers based
Imaging metal nanoparticle adsorption on graphene aerogels
The functionalization of porous carbon aerogels and sponge-like materials with metal nanoparticles (NPs) has shown significant promise for several applications, including energy storage and harvesting and environmental remediation. Methods for imaging the internal structure of these porous
Can nanographene cross placental barrier?
Graphene is an upcoming revolutionized 2D material that has sketched its importance across a wide spectra of interdisciplinary arenas due to its distinguishing properties. Being a sp2 hybridized allotrope of carbon with a honeycomb lattice structure; it
Unveiling toxicity concerns of PEGylated reduced graphene oxide
Graphene, a 2D carbon material tagged as the “strongest material” that forms a honeycombed lattice structure has found profound application in biomedical field owing to its exciting physico-chemical properties. It has raised global acceptance and enthusiasm in
Crowd surfing of graphene on a lipid monolayer
In the recent years a growing interest in graphene applications lead to the development of new biosensor devices. Graphene is a powerful sensor due to its extraordinary electron mobility, unique mechanical strength and optical properties. Consequently, the
Immobilization of bilirubin oxidase on graphene oxide for oxygen reduction – when the charge matters
In recent years knowledge from nanotechnology, biotechnology and electrochemistry helped to develop extremely interesting devices – biofuel cells. In such devices, many different biomolecules have been employed for biologically catalyzed energy harvesting from energy rich organic molecules.
When graphene meets lectin for sensitive glycan analysis
The importance of glycans (chains of carbohydrates) in human body is relatively well known. They have a number of essential roles not only in physiology, but also in origin of various diseases. The majority of proteins and
Toxicity of graphene in lung alveolar epithelial cells
Graphene is a fascinating nanomaterial that has garnered significant scientific interest because of its unique properties such as superior thermal and electrical conductivity, high mechanical strength and unique optical properties. Due to this reason graphene has numerous
Downside of graphene – a miracle material
Any engineered nanomaterials should undergo thorough investigation on risk and health hazards imposed by them before available in the market for consumption. Graphene, a 2D carbon based material with hexagonal lattice structure along with its inherent physicochemical
Atomic wires of carbon: present status and perspectives
Carbon is all around us in different forms ranging from molecules to solids, minerals and nanostructures. Organic chemistry classifies alkanes, alkenes and alkynes hydrocarbons according to the different hybridization state of carbon atoms (sp3, sp2 and sp1,
Making the smallest possible fullerene molecules
It was in 1985 when the soccer ball appeared in chemistry. Spherical carbon cages were discovered, now known as the fullerenes and consisting of 60 carbon atoms in the shape of a soccer ball. Their discoverers have
Graphene: a nonlinear two-dimensional spring network
Graphene is one of the strongest materials in the world, which has an elastic modulus of 1.0 TPa and an intrinsic strength of 130 GPa (about 100 times of steel). Due to its nanoscale thickness, Graphene can
Enhanced absorption or transparency in hybrids of nanoparticles and graphene
The appealing side of nanotechnology lies in the fact that ordinary materials show surprising properties when their size is reduced to billionths of meters (nanometers). For example, we all know that silver is gray and gold is
紧凑,利用太赫兹波发生器
Terahertz (THz) wave is a kind of invisible light that has the frequency of about 1012 Hz. THz wave can path through different materials with small absorption or reflection, therefore this kind of wave can be used
Computational study of optical and electronic properties of metal-decorated Graphene
The computational methods for studying the various properties of nanomaterials like Graphene, have become extremely popular these days. Thanks to the ever increasing processor speeds. These methods include Density functional theory ( DFT ) and Time dependent density
