The diffusion of light by random materials is a general phenomenon that appears in many different systems, spanning from colloidal suspension in liquid crystals to disordered metal sponges and paper composed of random fibers. Random scattering is also a key element behind mimicry of several animals, such as white beetles and chameleons. Here, random scattering is related to micro and nanosized spatial structures affecting a broad electromagnetic region. In this work, we have investigated how random scattering modulates the optical properties, from terahertz to ultraviolet light, of a novel functional material, i.e., a three-dimensional graphene (3D Graphene) network based on interconnected high-quality two-dimensional graphene layers. Here, random scattering generates a high-frequency pass-filter behavior. The optical properties of these graphene structures bridge the nanoworld into the macroscopic world, paving the way for their use in novel optoelectronic devices.
Disordered photonics behavior from terahertz to ultraviolet of a three-dimensional graphene network / Tomarchio, Luca; Macis, Salvatore; D’Arco, Annalisa; Mou, Sen; Grilli, Antonio; Romani, Martina; Guidi, Mariangela Cestelli; Hu, Kailong; Kukunuri, Suresh; Jeong, Samuel; Marcelli, Augusto; Ito, Yoshikazu; Lupi, Stefano. - In: NPG ASIA MATERIALS. - ISSN 1884-4057. - 13:(2021). [10.1038/s41427-021-00341-9]
Disordered photonics behavior from terahertz to ultraviolet of a three-dimensional graphene network
Tomarchio, Luca;Macis, Salvatore;D’Arco, Annalisa;Romani, Martina;Guidi, Mariangela Cestelli;Lupi, Stefano
2021
Abstract
The diffusion of light by random materials is a general phenomenon that appears in many different systems, spanning from colloidal suspension in liquid crystals to disordered metal sponges and paper composed of random fibers. Random scattering is also a key element behind mimicry of several animals, such as white beetles and chameleons. Here, random scattering is related to micro and nanosized spatial structures affecting a broad electromagnetic region. In this work, we have investigated how random scattering modulates the optical properties, from terahertz to ultraviolet light, of a novel functional material, i.e., a three-dimensional graphene (3D Graphene) network based on interconnected high-quality two-dimensional graphene layers. Here, random scattering generates a high-frequency pass-filter behavior. The optical properties of these graphene structures bridge the nanoworld into the macroscopic world, paving the way for their use in novel optoelectronic devices.File | Dimensione | Formato | |
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