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A Catalyst-free Growth Of Aluminum-doped Zno Nanorods By Thermal Evaporation

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dc.contributor.authorSyahida Suhaimien_US
dc.contributor.authorSamsudi Sakranien_US
dc.contributor.authorTashi Dorjien_US
dc.contributor.authorAbdul Khamim Ismailen_US
dc.date.accessioned2024-05-28T05:49:17Z
dc.date.available2024-05-28T05:49:17Z
dc.date.issued2014
dc.descriptionVolume:9en_US
dc.description.abstractThe growth of Al:ZnO nanorods on a silicon substrate using a low-temperature thermal evaporation method is reported. The samples were fabricated within a horizontal quartz tube under controlled supply of O2 gas where Zn and Al powders were previously mixed and heated at 700°C. This allows the reactant vapors to deposit onto the substrate placed vertically above the source materials. Both the undoped and doped samples were characterized using scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDX), high-resolution transmission electron microscopy (HRTEM) and photoluminescence (PL) measurements. It was observed that randomly oriented nanowires were formed with varying nanostructures as the dopant concentrations were increased from 0.6 at.% to 11.3 at.% with the appearance of 'pencil-like' shape at 2.4 at.%, measuring between 260 to 350 nm and 720 nm in diameter and length, respectively. The HRTEM images revealed nanorods fringes of 0.46 nm wide, an equivalent to the lattice constant of ZnO and correspond to the (0001) fringes with regard to the growth direction. The as-prepared Al:ZnO samples exhibited a strong UV emission band located at approximately 389 nm (E g ?=?3.19 eV) with multiple other low intensity peaks appeared at wavelengths greater than 400 nm contributed by oxygen vacancies. The results showed the importance of Al doping that played an important role on the morphology and optical properties of ZnO nanostructures. This may led to potential nanodevices in sensor and biological applications.en_US
dc.identifier.doi10.1186/1556-2-0
dc.identifier.epage10
dc.identifier.issn1556-276X
dc.identifier.issue256
dc.identifier.spage1
dc.identifier.urihttps://nanoscalereslett.springeropen.com/articles/10.1186/1556-276X-9-256
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/6597
dc.identifier.volume9
dc.language.isoen_USen_US
dc.publisherSpringer Openen_US
dc.relation.ispartofNanoscale Research Lettersen_US
dc.titleA Catalyst-free Growth Of Aluminum-doped Zno Nanorods By Thermal Evaporationen_US
dc.typeArticleen_US
dspace.entity.typePublication

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