Wood-based superblack

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorZhao, Binen_US
dc.contributor.authorShi, Xuetongen_US
dc.contributor.authorKhakalo, Sergeien_US
dc.contributor.authorMeng, Yangen_US
dc.contributor.authorMiettinen, Arttuen_US
dc.contributor.authorTurpeinen, Tuomasen_US
dc.contributor.authorMi, Shuyien_US
dc.contributor.authorSun, Zhipeien_US
dc.contributor.authorKhakalo, Alexeyen_US
dc.contributor.authorRojas Gaona, Orlandoen_US
dc.contributor.authorDufau Mattos, Brunoen_US
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.departmentDepartment of Civil Engineeringen
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen
dc.contributor.groupauthorBio-based Colloids and Materialsen
dc.contributor.groupauthorStructures – Structural Engineering, Mechanics and Computationen
dc.contributor.groupauthorZhipei Sun Groupen
dc.contributor.groupauthorCentre of Excellence in Quantum Technology, QTFen
dc.contributor.organizationUniversity of British Columbiaen_US
dc.contributor.organizationKunming University of Science and Technologyen_US
dc.contributor.organizationUniversity of Jyväskyläen_US
dc.contributor.organizationVTT Technical Research Centre of Finlanden_US
dc.date.accessioned2023-12-11T09:29:27Z
dc.date.available2023-12-11T09:29:27Z
dc.date.issued2023-12-05en_US
dc.description.abstractLight is a powerful and sustainable resource, but it can be detrimental to the performance and longevity of optical devices. Materials with near-zero light reflectance, i.e. superblack materials, are sought to improve the performance of several light-centered technologies. Here we report a simple top-down strategy, guided by computational methods, to develop robust superblack materials following metal-free wood delignification and carbonization (1500 °C). Subwavelength severed cells evolve under shrinkage stresses, yielding vertically aligned carbon microfiber arrays with a thickness of ~100 µm and light reflectance as low as 0.36% and independent of the incidence angle. The formation of such structures is rationalized based on delignification method, lignin content, carbonization temperature and wood density. Moreover, our measurements indicate a laser beam reflectivity lower than commercial light stoppers in current use. Overall, the wood-based superblack material is introduced as a mechanically robust surrogate for microfabricated carbon nanotube arrays.en
dc.description.versionPeer revieweden
dc.format.extent12
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationZhao, B, Shi, X, Khakalo, S, Meng, Y, Miettinen, A, Turpeinen, T, Mi, S, Sun, Z, Khakalo, A, Rojas Gaona, O & Dufau Mattos, B 2023, ' Wood-based superblack ', Nature Communications, vol. 14, no. 1, 7875 . https://doi.org/10.1038/s41467-023-43594-4en
dc.identifier.doi10.1038/s41467-023-43594-4en_US
dc.identifier.issn2041-1723
dc.identifier.otherPURE UUID: 12b284b5-ddd1-4ee6-9bf8-1ab468a6eaceen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/12b284b5-ddd1-4ee6-9bf8-1ab468a6eaceen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85178850365&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/130367240/s41467-023-43594-4.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/124769
dc.identifier.urnURN:NBN:fi:aalto-202312117137
dc.language.isoenen
dc.publisherNature Publishing Group
dc.relation.ispartofseriesNature Communicationsen
dc.relation.ispartofseriesVolume 14en
dc.rightsopenAccessen
dc.subject.keywordStructural propertiesen_US
dc.subject.keywordSustainabilityen_US
dc.subject.keywordSynthesis and processingen_US
dc.titleWood-based superblacken
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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