Bio-inspired broadband absorbers induced by copper nanostructures on natural leaves

Abstract In this work, two copper-based biometamaterials were engineered using leaves of water cabbage (Pistia stratiotes) and purple bauhinia (Phanera purpurea) as templates. The copper sputtering was implemented to produce a thin copper film on the surface of leaves. The scanning electron microsco...

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Autores principales:	Trung Duc Dao, Dinh Dat Pham, Thi An Hang Nguyen, Thi Viet Ha Tran, Chung Vu Hoang, Tien Thanh Pham
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/74ae94ab512d4f8bae6e7b4bdb482f0f
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spelling	oai:doaj.org-article:74ae94ab512d4f8bae6e7b4bdb482f0f2021-12-02T10:59:52ZBio-inspired broadband absorbers induced by copper nanostructures on natural leaves10.1038/s41598-020-59960-x2045-2322https://doaj.org/article/74ae94ab512d4f8bae6e7b4bdb482f0f2020-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-59960-xhttps://doaj.org/toc/2045-2322Abstract In this work, two copper-based biometamaterials were engineered using leaves of water cabbage (Pistia stratiotes) and purple bauhinia (Phanera purpurea) as templates. The copper sputtering was implemented to produce a thin copper film on the surface of leaves. The scanning electron microscopy (SEM) images exhibited the root hair-like nanostructure of water cabbage leaf and single comb-like nanostructure of purple bauhinia leaf. In spite of copper coating, the leaf surfaces of water cabbage and purple bauhinia were black and exhibited excellent light absorption at visible and near infrarrred wavelengths. It was estimated that these two types of leaves could absorb roughly 90% of light. Finite-difference time-domain (FDTD) calculations predicted the low reflectance stemming from the leaf nanostructures and copper coating layer. Because of the low cost of copper as a coating metal and simple procedure, this can be a promising method for quick fabrication of a thin copper film on the leaf nanostructure for application in blackbody or as the light absorbers.Trung Duc DaoDinh Dat PhamThi An Hang NguyenThi Viet Ha TranChung Vu HoangTien Thanh PhamNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Trung Duc Dao Dinh Dat Pham Thi An Hang Nguyen Thi Viet Ha Tran Chung Vu Hoang Tien Thanh Pham Bio-inspired broadband absorbers induced by copper nanostructures on natural leaves
description	Abstract In this work, two copper-based biometamaterials were engineered using leaves of water cabbage (Pistia stratiotes) and purple bauhinia (Phanera purpurea) as templates. The copper sputtering was implemented to produce a thin copper film on the surface of leaves. The scanning electron microscopy (SEM) images exhibited the root hair-like nanostructure of water cabbage leaf and single comb-like nanostructure of purple bauhinia leaf. In spite of copper coating, the leaf surfaces of water cabbage and purple bauhinia were black and exhibited excellent light absorption at visible and near infrarrred wavelengths. It was estimated that these two types of leaves could absorb roughly 90% of light. Finite-difference time-domain (FDTD) calculations predicted the low reflectance stemming from the leaf nanostructures and copper coating layer. Because of the low cost of copper as a coating metal and simple procedure, this can be a promising method for quick fabrication of a thin copper film on the leaf nanostructure for application in blackbody or as the light absorbers.
format	article
author	Trung Duc Dao Dinh Dat Pham Thi An Hang Nguyen Thi Viet Ha Tran Chung Vu Hoang Tien Thanh Pham
author_facet	Trung Duc Dao Dinh Dat Pham Thi An Hang Nguyen Thi Viet Ha Tran Chung Vu Hoang Tien Thanh Pham
author_sort	Trung Duc Dao
title	Bio-inspired broadband absorbers induced by copper nanostructures on natural leaves
title_short	Bio-inspired broadband absorbers induced by copper nanostructures on natural leaves
title_full	Bio-inspired broadband absorbers induced by copper nanostructures on natural leaves
title_fullStr	Bio-inspired broadband absorbers induced by copper nanostructures on natural leaves
title_full_unstemmed	Bio-inspired broadband absorbers induced by copper nanostructures on natural leaves
title_sort	bio-inspired broadband absorbers induced by copper nanostructures on natural leaves
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/74ae94ab512d4f8bae6e7b4bdb482f0f
work_keys_str_mv	AT trungducdao bioinspiredbroadbandabsorbersinducedbycoppernanostructuresonnaturalleaves AT dinhdatpham bioinspiredbroadbandabsorbersinducedbycoppernanostructuresonnaturalleaves AT thianhangnguyen bioinspiredbroadbandabsorbersinducedbycoppernanostructuresonnaturalleaves AT thiviethatran bioinspiredbroadbandabsorbersinducedbycoppernanostructuresonnaturalleaves AT chungvuhoang bioinspiredbroadbandabsorbersinducedbycoppernanostructuresonnaturalleaves AT tienthanhpham bioinspiredbroadbandabsorbersinducedbycoppernanostructuresonnaturalleaves
_version_	1718396360749744128

Bio-inspired broadband absorbers induced by copper nanostructures on natural leaves

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