Titanium dioxide-coated nanoporous anodic alumina optical properties

2019 ◽  
Vol 489 ◽  
pp. 239-246 ◽  
Author(s):  
Sara M. Aguilar-Sierra ◽  
Josep Ferré-Borrull ◽  
Félix E. Echeverría ◽  
Lluís F. Marsal
Keyword(s):  
Titanium Dioxide ◽  
Optical Properties ◽  
Anodic Alumina ◽  
Nanoporous Anodic Alumina

Light-confining semiconductor nanoporous anodic alumina optical microcavities for photocatalysis

2019 ◽  
Vol 7 (39) ◽  
pp. 22514-22529 ◽  
Author(s):  
Lina Liu ◽  
Siew Yee Lim ◽  
Cheryl Suwen Law ◽  
Bo Jin ◽  
Andrew D. Abell ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Structural Engineering ◽  
Extensive Study ◽  
Anodic Alumina ◽  
Nanoporous Anodic Alumina ◽  
Optical Microcavities ◽  
Light Confinement

An extensive study on the structural engineering of titanium dioxide-functionalized nanoporous anodic alumina optical microcavities (TiO2-NAA-μQVs) for photocatalysis enhanced by light confinement is presented.

Optical Properties of Nanoporous Anodic Alumina and Derived Applications

2015 ◽  
pp. 185-217 ◽  
Author(s):  
Josep Ferré-Borrull ◽  
Elisabet Xifré-Pérez ◽  
Josep Pallarès ◽  
Lluis F. Marsal
Keyword(s):  
Optical Properties ◽  
Anodic Alumina ◽  
Nanoporous Anodic Alumina

scholarly journals Effect of Pore Thickness and the State of Polarization on the Optical Properties of Hexagonal Nanoarray of Au/Nanoporous Anodic Alumina Membrane

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Mohamed Shaban
Keyword(s):  
Optical Properties ◽  
Building Blocks ◽  
Anodic Alumina ◽  
Radiative Transfer Model ◽  
Transfer Model ◽  
Anodic Alumina Membrane ◽  
Alumina Membrane ◽  
Nanoporous Anodic Alumina ◽  
Anodization Time ◽  
State Of Polarization

Hexagonal nanoarrays of Au particles were deposited on nanoporous anodic alumina membrane (NAAM) utilizing r.f. magnetron sputtering. The thickness of the NAAMs is adjusted by changing the second anodization time from 5 min to 20 min. The surface morphology, composition, and optical properties are characterized by using SEM, EDX, and spectrophotometer, respectively. The effects of the NAAM thickness and state of polarization on the morphological changes and on the optical properties of the fabricated nanoarrays were addressed. According to the measured optical spectra, the rate of decrease of NAAMs refractive index was found to be 3.825 × 10−4 nm−1. Using the modified Kubelka-Munk radiative transfer model, the energy gap of NAAMs was calculated from diffused reflectance and was decreased from 1.682 to 1.376 as the anodization time increased from 5 to 20 min. Also, the saturation of interference fringes is substantially enhanced, and field enhancement can be achieved due to the excitation and constructive interference of surface plasmon waves by coating NAAMs with the hexagonal nanoarrays of Au. Based on the advantages of the fabrication approach and the enhanced and controlled properties, this new generation of samples can be used as promising building blocks for nanophotonic and nanoelectronics devices.

scholarly journals Engineering optical properties of gold-coated nanoporous anodic alumina for biosensing

2014 ◽  
Vol 9 (1) ◽  
pp. 414 ◽  
Author(s):  
Laura P Hernández-Eguía ◽  
Josep Ferré-Borrull ◽  
Gerard Macias ◽  
Josep Pallarès ◽  
Lluís F Marsal
Keyword(s):  
Optical Properties ◽  
Anodic Alumina ◽  
Nanoporous Anodic Alumina

Photoswitchable Membranes Based on Peptide‐Modified Nanoporous Anodic Alumina: Toward Smart Membranes for On‐Demand Molecular Transport

2015 ◽  
Vol 27 (19) ◽  
pp. 3019-3024 ◽  
Author(s):  
Tushar Kumeria ◽  
Jingxian Yu ◽  
Mohammed Alsawat ◽  
Mahaveer D. Kurkuri ◽  
Abel Santos ◽  
...  
Keyword(s):  
Molecular Transport ◽  
Anodic Alumina ◽  
Nanoporous Anodic Alumina ◽  
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