Biodegradable and Insoluble Cellulose Photonic Crystals and Metasurfaces.
Biodegradable and Insoluble Cellulose Photonic Crystals and Metasurfaces.
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DOI:
10.1021/acsnano.0c03224
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发表时间:
2020-08-25
期刊:
影响因子:
17.1
通讯作者:
Heredia-Guerrero JA
中科院分区:
文献类型:
--
作者:
Caligiuri V;Tedeschi G;Palei M;Miscuglio M;Martin-Garcia B;Guzman-Puyol S;Hedayati MK;Kristensen A;Athanassiou A;Cingolani R;Sorger VJ;Salerno M;Bonaccorso F;Krahne R;Heredia-Guerrero JA
The replacement of plastic with eco-friendly and biodegradable materials is one of the most stringent environmental challenges. In this respect, cellulose stands out as a biodegradable polymer. However, a significant challenge is to obtain biodegradable materials for high-end photonics that are robust in humid environments. Here, we demonstrate the fabrication of high-quality micro- and nanoscale photonic and plasmonic structures via replica molding using pure cellulose and a blended version with nonedible agro-wastes. Both materials are biodegradable in soil and seawater according to the ISO 17556 standard. The pure cellulose films are transparent in the vis–NIR spectrum, having a refractive index similar to glass. The microstructured photonic crystals show high-quality diffractive properties that are maintained under extended exposure to water. Nanostructuring the cellulose transforms it to a biodegradable metasurface manifesting bright structural colors. A subsequent deposition of Ag endowed the metasurface with plasmonic properties used to produce plasmonic colors and for surface-enhanced Raman scattering.
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影响因子:
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影响因子:
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