Implementation of nanoporous anodic aluminum oxide layer with different porosities for interferometric RGB color pixels as handheld display application

Lo, Pei-Hsuan; Luo, G.H.; Fang, Weileun

doi:10.1109/memsys.2015.7050888

Cited by 2 publications

(3 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…15,16 For metal-AAO−Al nanostructures, it is well established that the colors are tuned by the thickness of AAO films. 7,13,14,17,18 Moreover, some studies have reported that the color is tuned by the pore diameter 19,20 or porosity; 7,10,18 however, some controversy still exists due to the fact that in these studies the pore diameter and the porosity are changing at the same time since a chemical etching is performed to modify the pore diameter. To date, the complete influence of AAO films' morphological parameters on color has not been determined.…”

Section: Introductionmentioning

confidence: 99%

“…6 Such mechanisms also play an important role in the generation of brilliant colors for metal-AAO−Al nanostructures, and this is being extensively studied. These nanostructures can be used in different applications, such as surface plasmon resonance, 7−9 optical interference, wavelength absorbers, 2 RGB display devices, 10 and chemical 11 and optical sensors. 12 Brilliant (structural) colors observed in metal-AAO−Al films depend on the optical interference (i.e., the metal layer 13,14 and the effective refractive index of the AAO−Al films) which correlates with AAO morphological parameters.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Controlling the Color and Effective Refractive Index of Metal-Anodic Aluminum Oxide (AAO)–Al Nanostructures: Morphology of AAO

et al. 2017

View full text Add to dashboard Cite

Metal-anodic aluminum oxide (AAO)–Al nanostructures have been deposited by using sputtering for the metal layer deposition and a two-step anodization process in different electrolytes to produce self-ordered anodic aluminum oxide films. The effect of the morphological parameters of AAO films (such as thickness, pore diameter, interpore distance, and porosity) on the optical properties was studied. The UV–vis reflectance properties as a function of the thickness for the different electrolytes of metal-AAO–Al films were analyzed in order to obtain the color diagrams and the effective refractive indexes of the films. The effective refractive index was found to depend on the thickness and porosity of AAO films. The change in color observed in metal-AAO–Al nanostructures is due to the thickness and porosity of the AAO films. In order to verify the experimental results, UV–vis reflectance spectra of AAO–Al films were simulated using commercially available finite element simulation software.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Controlling the Color and Effective Refractive Index of Metal-Anodic Aluminum Oxide (AAO)–Al Nanostructures: Morphology of AAO

et al. 2017

View full text Add to dashboard Cite

show abstract

“…There are different approaches in obtaining brilliant colours using AAO films, such as the use of new anodization electrolytes (etidronic acid) [2], the use of pulsed anodization [3], and the deposition of a metal layer onto the surface of AAO-Al films [4]. In particular, metal-AAO-Al nanostructures exhibit structural colours that can find applications as wavelength absorbers [5], in RGB display devices [6], and as chemical [7] or optical sensors [8]. It is essential to develop a model that allows for the determination of the colours (RGB or Yxy values of CIE 1931 colour space) of these nanostructures based on the morphological parameters of the AAO films.…”

Section: Introductionmentioning

confidence: 99%

A set of empirical equations describing the observed colours of metal–anodic aluminium oxide–Al nanostructures

Manzano

Schwiedrzik

Bürki

et al. 2020

Beilstein J. Nanotechnol.

View full text Add to dashboard Cite

Structural colours have received a lot of attention regarding the reproduction of the vivid colours found in nature. In this study, metal–anodic aluminium oxide (AAO)–Al nanostructures were deposited using a two-step anodization and sputtering process to produce self-ordered anodic aluminium oxide films and a metal layer (8 nm Cr and 25, 17.5 and 10 nm of Au), respectively. AAO films of different thickness were anodized and the Yxy values (Y is the luminance value, and x and y are the chromaticity values) were obtained via reflectance measurements. An empirical model based on the thickness and porosity of the nanostructures was determined, which describes a gamut of colours. The proposed mathematical model can be applied in different fields, such as wavelength absorbers, RGB (red, green, blue) display devices, as well as chemical or optical sensors.

show abstract

Implementation of nanoporous anodic aluminum oxide layer with different porosities for interferometric RGB color pixels as handheld display application

Cited by 2 publications

References 10 publications

Controlling the Color and Effective Refractive Index of Metal-Anodic Aluminum Oxide (AAO)–Al Nanostructures: Morphology of AAO

Controlling the Color and Effective Refractive Index of Metal-Anodic Aluminum Oxide (AAO)–Al Nanostructures: Morphology of AAO

A set of empirical equations describing the observed colours of metal–anodic aluminium oxide–Al nanostructures

Contact Info

Product

Resources

About