The ability for graphene to absorb radiation from many different regions in the electromagnetic spectrum is down to its band structure, lack of a band gap and the interaction between the electromagnetic radiation and the Dirac fermions in the graphene sheet. For one, graphene possesses unique optical transitions and can absorb light over a wide range of frequencies. CVD Graphene’s Hydrophilicity and Exploration on Possibilities for CVD Graphene-Based Bio Applicationsīut graphene also has many other specific properties when it interacts with electromagnetic radiation.Tribological Behavior of Laser-Induced Graphene as a Solid Lubricant.Improved Terahertz Optoelectronics Using Graphene.But the relationship is linear, with each layer absorbing 2.3% of light so, a graphene sample composed of 5 layers would have an absorption of 11.5 % and an optical transparency of around 88-88.5% (when you also take into account the small degree of light reflected). However, the more graphene layers there are stacked on top of each other, the greater the light absorption becomes and the lower the optical transparency becomes. For example, a single layer of graphene only absorbs 2.3% of light, so 97.7% of light passes through a single layer, with around 0.1% reflected from its initial trajectory. It should be noted though, that the optical properties of graphene do vary by the layer number. While most people focus on the high-strength and high conductivity properties, graphene’s optical properties are worth a mention. pure graphene), and not any of the derivatives such as graphene oxide and reduced graphene oxide. It such be noted that this article centers around non-functionalized graphene (i.e. However, graphene does have many other notable properties, and in this article, we will look at one of them-it’s optical properties. When most people think of graphene, they often think about its flexibility, it’s high tensile strength, or its high electrical conductivity and charge carrier mobility, as these are the properties that are most often discussed. its properties, of graphene has already been deduced. So, it is of no surprise that much of the basic science, i.e. Graphene is a nanomaterial that has a lot of different properties, a lot of potential for many scientific applications, and the potential to enter many commercial markets.
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