Rational design of ordered Bi/ZnO nanorod arrays: surface modification, optical energy band alteration and switchable wettability study

Surface modification and wetting state transformation of ZnO based nanomaterials have been extensively investigated due to their substantial roles in current industrial applications. In this work, we demonstrated the formation of highly crystalline and ordered Bi/ZnO nanorods arrays (Bi/ZNRs) grown...

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Autores principales:	Sin Tee Tan, Fang Sheng Lim, Weng Jon Lee, Hock Beng Lee, Kai Jeat Hong, Hind Fadhil Oleiwi, Wei Sea Chang, Chi Chin Yap, Mohammad Hafizuddin Hj Jumali
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Surface modification Wettability Energy band Nanorod Current mapping Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/0b6ce84b323549adb5176ead7626b326
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spelling	oai:doaj.org-article:0b6ce84b323549adb5176ead7626b3262021-11-14T04:33:14ZRational design of ordered Bi/ZnO nanorod arrays: surface modification, optical energy band alteration and switchable wettability study2238-785410.1016/j.jmrt.2021.10.096https://doaj.org/article/0b6ce84b323549adb5176ead7626b3262021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421012321https://doaj.org/toc/2238-7854Surface modification and wetting state transformation of ZnO based nanomaterials have been extensively investigated due to their substantial roles in current industrial applications. In this work, we demonstrated the formation of highly crystalline and ordered Bi/ZnO nanorods arrays (Bi/ZNRs) grown on FTO substrate via a feasible hydrothermal method, as a function of reaction time (t). The lateral diameter of the nanostructures were found increased from 23 nm to 43 nm when the reaction time increased from 30 min to 90 min. An in-depth analysis and incisive mechanism of crystal growth under the function of reaction time were proposed. The crystal defect which originated from different Bi incorporation pathways has been declared as the main factor altering the optical energy, electrical properties and band structure of Bi/ZNRs. The Bi/ZNRs showed a higher localize current of 14.5 pA as compared to pristine ZNRs under an 6V applied bias condition, revealing the nature of Bi as a pentavalent dopant that contributed to a density of free electron. Additionally, the Bi/ZNRs also revealed a red shifted in optical energy band gap and exhibit a wetting transition from hydrophobic to hydrophilic textured surface. The novel nanostructures reported herein exhibit interesting physical and optical properties for the fabrication of high performance optoelectronic devices.Sin Tee TanFang Sheng LimWeng Jon LeeHock Beng LeeKai Jeat HongHind Fadhil OleiwiWei Sea ChangChi Chin YapMohammad Hafizuddin Hj JumaliElsevierarticleSurface modificationWettabilityEnergy bandNanorodCurrent mappingMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 5213-5220 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Surface modification Wettability Energy band Nanorod Current mapping Mining engineering. Metallurgy TN1-997
spellingShingle	Surface modification Wettability Energy band Nanorod Current mapping Mining engineering. Metallurgy TN1-997 Sin Tee Tan Fang Sheng Lim Weng Jon Lee Hock Beng Lee Kai Jeat Hong Hind Fadhil Oleiwi Wei Sea Chang Chi Chin Yap Mohammad Hafizuddin Hj Jumali Rational design of ordered Bi/ZnO nanorod arrays: surface modification, optical energy band alteration and switchable wettability study
description	Surface modification and wetting state transformation of ZnO based nanomaterials have been extensively investigated due to their substantial roles in current industrial applications. In this work, we demonstrated the formation of highly crystalline and ordered Bi/ZnO nanorods arrays (Bi/ZNRs) grown on FTO substrate via a feasible hydrothermal method, as a function of reaction time (t). The lateral diameter of the nanostructures were found increased from 23 nm to 43 nm when the reaction time increased from 30 min to 90 min. An in-depth analysis and incisive mechanism of crystal growth under the function of reaction time were proposed. The crystal defect which originated from different Bi incorporation pathways has been declared as the main factor altering the optical energy, electrical properties and band structure of Bi/ZNRs. The Bi/ZNRs showed a higher localize current of 14.5 pA as compared to pristine ZNRs under an 6V applied bias condition, revealing the nature of Bi as a pentavalent dopant that contributed to a density of free electron. Additionally, the Bi/ZNRs also revealed a red shifted in optical energy band gap and exhibit a wetting transition from hydrophobic to hydrophilic textured surface. The novel nanostructures reported herein exhibit interesting physical and optical properties for the fabrication of high performance optoelectronic devices.
format	article
author	Sin Tee Tan Fang Sheng Lim Weng Jon Lee Hock Beng Lee Kai Jeat Hong Hind Fadhil Oleiwi Wei Sea Chang Chi Chin Yap Mohammad Hafizuddin Hj Jumali
author_facet	Sin Tee Tan Fang Sheng Lim Weng Jon Lee Hock Beng Lee Kai Jeat Hong Hind Fadhil Oleiwi Wei Sea Chang Chi Chin Yap Mohammad Hafizuddin Hj Jumali
author_sort	Sin Tee Tan
title	Rational design of ordered Bi/ZnO nanorod arrays: surface modification, optical energy band alteration and switchable wettability study
title_short	Rational design of ordered Bi/ZnO nanorod arrays: surface modification, optical energy band alteration and switchable wettability study
title_full	Rational design of ordered Bi/ZnO nanorod arrays: surface modification, optical energy band alteration and switchable wettability study
title_fullStr	Rational design of ordered Bi/ZnO nanorod arrays: surface modification, optical energy band alteration and switchable wettability study
title_full_unstemmed	Rational design of ordered Bi/ZnO nanorod arrays: surface modification, optical energy band alteration and switchable wettability study
title_sort	rational design of ordered bi/zno nanorod arrays: surface modification, optical energy band alteration and switchable wettability study
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/0b6ce84b323549adb5176ead7626b326
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_version_	1718429938923601920

Rational design of ordered Bi/ZnO nanorod arrays: surface modification, optical energy band alteration and switchable wettability study

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