Comparative study of porous anodic alumina: Effects of aluminium deposition methods

Chin, IR; Yam, F.K.; Chai, Yaqin; Hassan, Z.

doi:10.1179/1743284714y.0000000651

Cited by 7 publications

(5 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For some optical sensors, it is necessary to form PAA film on a transparent substrate. There are many reports on studying the formation of PAA from deposited Al films on glass [ 11 , 14 – 19 ]. Analysis of published data shows that during the formation of PAA from aluminum film on any substrate, not only the process of anodic oxidation affects the outcome but also the way of deposition of aluminum films [ 20 ], the impurity in the film [ 21 ], the heat treatment of aluminum film [ 22 ], the thickness of Al film [ 23 ], and the presence of a conductive underlayer on an insulating substrate [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Formation of Nanoporous Anodic Alumina by Anodization of Aluminum Films on Glass Substrates

et al. 2016

View full text Add to dashboard Cite

Our research was aimed at the study of aluminum films and porous anodic alumina (PAA) films in thin-film РАА/Al structures for optical sensors, based on metal-clad waveguides (MCWG). The results of the scanning electron microscopy (SEM) and atomic force microscopy (AFM) studies of the structure of Al films, deposited by DC magnetron sputtering, and of PAA films, formed on them, are presented in this work.The study showed that the structure of the Al films is defined by the deposition rate of aluminum and the thickness of the film. We saw that under anodization in 0.3 M aqueous oxalic acid solution at a voltage of 40 V, the PAA film with a disordered array of pores was formed on aluminum films 200–600 nm thick, which were deposited on glass substrates with an ultra-thin adhesive Nb layer. The research revealed the formation of two differently sized types of pores. The first type of pores is formed on the grain boundaries of aluminum film, and the pores are directed perpendicularly to the surface of aluminum. The second type of pores is formed directly on the grains of aluminum. They are directed perpendicularly to the grain plains. There is a clear tendency to self-ordering in this type of pores.

show abstract

Section: Introductionmentioning

confidence: 99%

Formation of Nanoporous Anodic Alumina by Anodization of Aluminum Films on Glass Substrates

et al. 2016

View full text Add to dashboard Cite

show abstract

“…However, it is necessary to consider that for PAA templates fabricated by a two-step anodization technique, a thick sacrificial layer is necessary to pre-texture the aluminium surface. However, the evaporated/sputtered aluminium thickness typically is in the order of micrometres [ 182 ]. Subsequently, the regularity of the pores can be severely reduced since the pore structure cannot reach a honeycomb-like structure at the end of the first anodization process.…”

Section: Synthesis Of Carbon Nanostructures Within Paa Templatesmentioning

confidence: 99%

Overview of Engineering Carbon Nanomaterials Such As Carbon Nanotubes (CNTs), Carbon Nanofibers (CNFs), Graphene and Nanodiamonds and Other Carbon Allotropes inside Porous Anodic Alumina (PAA) Templates

Sacco

Vollebregt

2023

Nanomaterials

View full text Add to dashboard Cite

The fabrication and design of carbon-based hierarchical structures with tailored nano-architectures have attracted the enormous attention of the materials science community due to their exceptional chemical and physical properties. The collective control of nano-objects, in terms of their dimensionality, orientation and size, is of paramount importance to expand the implementation of carbon nanomaterials across a large variety of applications. In this context, porous anodic alumina (PAA) has become an attractive template where the pore morphologies can be straightforwardly modulated. The synthesis of diverse carbon nanomaterials can be performed using PAA templates, such as carbon nanotubes (CNTs), carbon nanofibers (CNFs), and nanodiamonds, or can act as support for other carbon allotropes such as graphene and other carbon nanoforms. However, the successful growth of carbon nanomaterials within ordered PAA templates typically requires a series of stages involving the template fabrication, nanostructure growth and finally an etching or electrode metallization steps, which all encounter different challenges towards a nanodevice fabrication. The present review article describes the advantages and challenges associated with the fabrication of carbon materials in PAA based materials and aims to give a renewed momentum to this topic within the materials science community by providing an exhaustive overview of the current synthesis approaches and the most relevant applications based on PAA/Carbon nanostructures materials. Finally, the perspective and opportunities in the field are presented.

show abstract

“…This is because large quantity of hydroxide is produced in the alkaline solution and it serves as the source of oxygen to grow the oxide gate layer. [35][36][37] This is sometimes known as wet oxidation process. On the other hand, if the dielectric layer is grown by direct heating inside a furnace in an oxidation-contained ambient, it is then called the dry oxidation process.…”

Section: Anodisation Of Thin Film and Growth Modesmentioning

confidence: 99%

Effects of anodisation parameters on thin film properties: A review

Wong

Affendy

Lau

et al. 2017

Materials Science and Technology

View full text Add to dashboard Cite

Electrochemical anodisation is a well-received method in the complementary metal-oxide-semiconductor field as it is advantageous; best performed at room temperature which translates into being more affordable and a simple alternative to form nano-structured oxide films for different metals. The quintessential parameters involved allow numerous formations of metal oxide films according to desired morphology and thickness. Therefore, this paper aims to review the effects of anodising parameters such as applied voltage, concentration, temperature, time, current density and post-anodisation annealing among them.

show abstract

Comparative study of porous anodic alumina: Effects of aluminium deposition methods

Cited by 7 publications

References 20 publications

Formation of Nanoporous Anodic Alumina by Anodization of Aluminum Films on Glass Substrates

Formation of Nanoporous Anodic Alumina by Anodization of Aluminum Films on Glass Substrates

Overview of Engineering Carbon Nanomaterials Such As Carbon Nanotubes (CNTs), Carbon Nanofibers (CNFs), Graphene and Nanodiamonds and Other Carbon Allotropes inside Porous Anodic Alumina (PAA) Templates

Effects of anodisation parameters on thin film properties: A review

Contact Info

Product

Resources

About