Titanium dioxide-coated nanoporous anodic alumina optical properties
Source abstract
Abstract
Abstract Ordered nanoporous anodic alumina (NAA) samples are fabricated by the two-step anodization process. The surface of NAA is modified by means of the spray pyrolysis of titanium dioxide (TiO2). The morphology and optical properties of the samples are investigated. UV–Vis-NIR reflectance of NAA and NAA coated with TiO2 has been both measured and simulated. The influence of pore diameter and thickness of both NAA and TiO2 in reflectance is analyzed. Pore diameters between 30 nm and 80 nm and thicknesses from 3 to 14 μm are evaluated for the NAA. TiO2 coating thicknesses from 87 nm to 438 nm are determined by the number of sprayed TiO2 layers. Samples up to 40 nm TiO2 coating exhibit an increase in the intensity of the oscillations produced by NAA. Whereas, thicker TiO2 coatings generate a modulated oscillating behavior in the UV–Vis-NIR region. Numerical simulation based on the Transfer Matrix Method has also been carried out to analyze the measured reflectance spectra. The porosity of films has been modeled using an effective medium approximation. It is found the importance of including some absorption in the UV–Vis zone of the NAA layers to obtain accurate predictions of the optical behavior of NAA.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Anodic Oxide Films and Nanostructures · Photonic Crystals and Applications · Optical Coatings and Gratings
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (94)
Show source-provided references
1. Highly ordered nanostructures with tunable size, shape and properties: a new way to surface nano-patterning using ultra-thin alumina masks10.1016/j.pmatsci.2006.07.002 ↗
2. Highly ordered anodic porous alumina formation by self-organized anodizing
3. Preparation of self-ordered nanoporous anodic aluminum oxide membranes by combination of hard anodization and mild anodization10.1016/j.tsf.2013.12.023 ↗
4. Analysis of nanopore arrangement of porous alumina layers formed by anodizing in oxalic acid at relatively high temperatures10.1016/j.apsusc.2014.03.154 ↗
5. Ordered metal nanohole arrays made by a two-step replication of honeycomb structures of anodic alumina10.1126/science.268.5216.1466 ↗
6. Microstructure and wear resistance of nano titanium dioxide strengthening hardfacing material10.1016/j.vacuum.2019.01.045 ↗
7. Optical and microstructural properties of decorative Al/Ti/TiO2 interference coatings
8. Garcia I, M. E, J.. . d. Damborenea, A.M. A, Comparative determination of TiO2 surface free energies for adhesive bonding application, Int. J. Adhes. Adhes.. 31 (2011) 832–839.10.1016/j.ijadhadh.2010.12.006 ↗
9. Surface alumina species on modified titanium dioxide: a solid-state27Al MAS and 3QMAS NMR investigation of catalyst supports10.1016/j.ssnmr.2010.05.003 ↗
10. Laser nanostructured Co nanocylinders-Al2O3 cermets for enhanced & flexible solar selective absorbers applications10.1016/j.apsusc.2015.04.098 ↗
11. Sustained, controlled and stimuli-responsive drug release systems based on nanoporous anodic alumina with layer-by-layer polyelectrolyte10.1186/s11671-016-1585-4 ↗
12. Structural and optical nanoengineering of nanoporous anodic alumina rugate filters for real-time and label-free biosensing applications10.1021/ac500069f ↗
13. Molecular gated nanoporous anodic alumina for the detection of cocaine10.1038/srep38649 ↗
14. Nanostructural engineering of nanoporous anodic alumina for biosensing applications10.3390/ma7075225 ↗
15. Engineering of surface chemistry for enhanced sensitivity in nanoporous interferometric sensing platforms10.1021/acsami.7b01116 ↗
16. Nanoporous anodic alumina: a versatile platform for optical biosensors10.3390/ma7064297 ↗
17. Nanoporous anodic aluminum oxide for chemical sensing and biosensors10.1016/j.trac.2012.11.007 ↗
18. Sensing and biosensing applications of nanoporous anodic alumina
19. Santos · 2015
20. Tunable Fabry-Pérot interferometer based on nanoporous anodic alumina for optical biosensing purposes10.1186/1556-276X-7-370 ↗
21. Cobalt electrodeposition in nanoporous anodic aluminium oxide for application as catalyst for methane combustion10.1016/j.electacta.2016.01.063 ↗
22. Electrodeposition efficiency of Ni in the fabrication of highly ordered nanowire arrays: the roles of Cu pre-plating and barrier layer temperature10.1016/j.apsusc.2015.08.104 ↗
23. Nanoporous alumina as templates for multifunctional applications10.1063/1.4893546 ↗
24. A simple and efficient combined AC-DC electrodeposition method for fabrication of highly ordered Au nanowires in AAO template10.1016/j.apsusc.2012.10.154 ↗
25. Applied Surface Science Nanostructural characterization of ordered gold particle arrays fabricated via aluminum anodizing, sputter coating, and dewetting10.1016/j.apsusc.2018.09.229 ↗
26. Nanoporous anodic alumina barcodes: toward smart optical biosensors10.1002/adma.201104490 ↗
27. Highly ordered anodic porous alumina membrane and its surface modification approaches for biomedical application10.9790/5736-07111734 ↗
28. Self-ordering regimes of porous alumina: the 10 porosity rule10.1021/nl025537k ↗
29. Self-ordering of anodic porous alumina formed in organic acid electrolytes10.1016/j.electacta.2005.05.058 ↗
30. Porous anodic alumina: fabrication, characterization and applications10.1016/S0040-6090(96)09440-0 ↗
31. A novel nanostructure fabricated by an improved two-step anodizing technology10.1016/j.elecom.2013.01.018 ↗
32. Rapid fabrication of porous anodic alumina films with large interpore distances in an ethylene glycol and ammonium dihydrogen phosphate-based electrolyte10.1149/2.0351816jes ↗
33. Realisation and advanced engineering of true optical rugate filters based on nanoporous anodic alumina by sinusoidal pulse anodisation10.1039/C5NR05462A ↗
34. Fast fabrication of long-range ordered porous alumina membranes by hard anodization10.1038/nmat1717 ↗
35. Self-ordered porous alumina membranes with large lattice constant fabricated by hard anodization10.1016/j.spmi.2007.10.005 ↗
36. Influence of TiO2-coating layer on nanoporous alumina membranes by ALD technique10.3390/coatings8020060 ↗
37. On hydrophilicity improvement of the porous anodic alumina film by hybrid nano/micro structuring10.1016/j.apsusc.2017.04.175 ↗
38. Nanoporous anodic aluminium oxide: advances in surface engineering and emerging applications10.1016/j.pmatsci.2013.01.002 ↗
39. Study of Al2O3/TiO2 reflectivity enhancing bi-layer films on bright aluminium substrates10.1016/j.apsusc.2007.07.073 ↗
40. Preparation of a highly-reflective TiO2/SiO2/Ag thin film with self-cleaning properties by magnetron sputtering for solar front reflectors10.1016/j.solmat.2013.01.034 ↗
41. Simulation of reflectance from white-anodised aluminium surfaces using polyurethane-TiO2 composite coatings10.1007/s10853-015-9005-1 ↗
42. Tuning the structural color of a 2D photonic crystal using a bowl-like nanostructure10.1021/acsami.6b03717 ↗
43. Surface curing and properties of titanium dioxide self - cleaning ceramics
44. Light-induced amphiphilic surfaces10.1038/41233 ↗
45. Applied Surface Science Fabrication of SnO 2 -TiO 2 core-shell nanopillar-array films for enhanced photocatalytic activity10.1016/j.apsusc.2016.10.166 ↗
46. Sol-gel synthesized hexagonal boron nitride / titania nanocomposites with enhanced photocatalytic activity10.1016/j.apsusc.2018.09.137 ↗
47. Simultaneous top and bottom perovskite interface engineering by fullerene surface modification of titanium dioxide as electron transport layer10.1021/acsami.7b06343 ↗
48. Studies of oxide growth location on anodization of Al and Ti provide evidence against the field-assisted dissolution and field-assisted ejection theories10.1016/j.elecom.2018.01.003 ↗
49. Terminated nanotubes: evidence against the dissolution equilibrium theory10.1016/j.elecom.2017.11.025 ↗
50. Photocatalytic properties of titanium dioxide sputtered on a nanostructured substrate10.1016/j.tsf.2007.04.083 ↗
51. Friction reduction by nanothin titanium layers on anodized alumina10.1016/j.surfcoat.2016.09.083 ↗
52. Chemical and structural modifications of nanoporous alumina and its optical properties
53. Nanostructure and photocatalytic properties of TiO2 films deposited at low temperature by pulsed PECVD10.1016/j.apsusc.2018.08.208 ↗
54. Surface modification of porous anodic alumina for medical and biological applications
55. Fabrication of nanomaterials using porous alumina templates10.1023/A:1024479827507 ↗
56. Nano-crystals of titanium dioxide in aluminum oxide: a transparent self-cleaning coating applicable to solar energy10.1016/j.solener.2013.08.024 ↗
57. Optical properties of copper clusters embedded in alumina: an experimental and theoretical study of size dependence10.1103/PhysRevB.70.165409 ↗
58. Biomimetic photonic structures for optical sensing10.1016/j.optlastec.2018.07.079 ↗
59. Optical and structural properties of sol-gel derived materials embedded in porous anodic alumina10.1016/j.mee.2005.03.016 ↗
60. Thin film deposition using spray pyrolysis10.1007/s10832-005-0870-x ↗
61. Cao · 2004
62. Microstructures and visible photoluminescence of TiO2 nanocrystals10.1002/1521-396X(200006)179:2<319::AID-PSSA319>3.0.CO;2-H ↗
63. Spray deposition and property analysis of anatase phase titania (TiO2) nanostructures10.1016/j.tsf.2010.07.073 ↗
64. Heterogeneous photocatalysis: fundamentals and applications to the removal of various types of aqueous pollutants10.1016/S0920-5861(99)00107-8 ↗
65. Angus Macleod · 2010
66. Born · 1985
67. Hass · 1963
68. Improvement of electropolishing of 1100 Al alloy for solar thermal applications10.1007/s11665-018-3212-2 ↗
69. Image processing with imageJ
70. Palik · 1997
71. Optical properties of metallic films for vertical-cavity optoelectronic devices10.1364/AO.37.005271 ↗
72. The effect of annealing on the photoluminescent and optical properties of porous anodic alumina films formed in sulfamic acid10.1016/j.apsusc.2009.08.056 ↗
73. Effect of annealing on photoluminescence and optical properties of porous anodic alumina films formed in sulfuric acid for solar energy applications10.1016/j.apsusc.2011.12.056 ↗
74. Photoluminescence properties of anodic alumina membranes with ordered nanopore arrays10.1016/j.jlumin.2005.12.057 ↗
75. Photoluminescence and optical absorption caused by the F+ centres in anodic alumina membranes10.1088/0953-8984/13/11/323 ↗
76. Wavelength dependent photoluminescence of anodic alumina membranes10.1088/0953-8984/15/49/034 ↗
77. Coloured materials and photoluminiscence centres in anodic film on aluminium10.1038/289572a0 ↗
78. Nature of the carboxilate species incorporated in anodic alumina films formed in oxalic acid solution10.1016/0040-6090(83)90099-8 ↗
79. Photoluminescent behavior of heat-treated porous alumina films formed in malonic acid10.1016/j.apsusc.2009.09.038 ↗
80. The duplex structure of cell walls of porous anodic films formed on aluminum10.1016/0010-938X(92)90078-H ↗
81. A model for the incorporation of electrolyte species into anodic alumina10.1149/1.1836389 ↗
82. Blue luminescence in porous anodic alumina films: the role of the oxalic impurities10.1088/0953-8984/15/12/324 ↗
83. Structural tuning of photoluminescence in nanoporous anodic alumina by hard anodization in oxalic and malonic acids10.1186/1556-276X-7-228 ↗
84. Optical constants of anodic aluminum oxide films formed in oxalic acid solution10.1016/j.tsf.2008.03.023 ↗
85. Optical properties of amorphous Al2O3 thin films prepared by a sol-gel process10.1016/j.ceramint.2014.05.148 ↗
86. Optical transmission spectra of ordered porous alumina membranes with different thicknesses and porosities10.1016/j.optmat.2005.07.003 ↗
87. Structural, optical and mechanical properties of amorphous and crystalline alumina thin films10.1016/j.tsf.2014.07.053 ↗
88. Yan · 2012
89. Hatch · 1984
90. Effect of processing parameters on pore opening and mechanism of voltage pulse detachment of nanoporous anodic alumina10.1016/j.electacta.2015.08.005 ↗
91. Morphology and transmittance of porous alumina on glass substrate10.1016/j.apsusc.2010.11.007 ↗
92. Morphological modification of TiO 2 thin films as highly efficient photoanodes for photoelectrochemical water splitting10.1021/acsami.5b00853 ↗
93. Biosensing using porous silicon double-layer interferometers10.1021/ja0511671 ↗
94. Effect of deposition parameters on the properties of TiO2 thin films prepared by spray pyrolysis10.1007/s10971-015-3836-8 ↗