{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,29]],"date-time":"2026-08-29T14:51:50Z","timestamp":1788015110091,"version":"build-2784847793"},"reference-count":44,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2022,4,20]],"date-time":"2022-04-20T00:00:00Z","timestamp":1650412800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006769","name":"Russian Science Foundation","doi-asserted-by":"publisher","award":["19-73-10176"],"award-info":[{"award-number":["19-73-10176"]}],"id":[{"id":"10.13039\/501100006769","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Anodization of aluminum with a pre-patterned surface is a promising approach for preparing anodic aluminum oxide (AAO) films with defect-free pore arrangement. Although pronounced effects of crystallographic orientation of Al on the AAO structure have been demonstrated, all current studies on the anodization of pre-patterned aluminum consider the substrate as an isotropic medium and, thus, do not consider the azimuthal orientation of the pattern relative to the basis vectors of the Al unit cell. Here, we investigate the interplay between the azimuthal alignment of the pore nuclei array and the crystallographic orientation of aluminum. Al(100) and Al(111) single-crystal substrates were pre-patterned by a Ga focused ion beam and then anodized under self-ordering conditions. The thickness-dependent degree of pore ordering in AAO was quantified using statistical analysis of scanning electron microscopy images. The observed trends demonstrate that the preferred azimuthal orientation of pore nuclei rows coincides with the &lt;110&gt; directions in the Al unit cell, which is favorable for creating AAO with a high degree of pore ordering. In the case of an unspecified azimuthal orientation of the pore nuclei array, crystallography-affected disorder within the AAO structure occurs with increasing film thickness. Our findings have important implications for preparing defect-free porous films over 100 \u00b5m in thickness that are crucial for a variety of AAO applications, e.g., creating metamaterials and 2D\/3D photonic crystals.<\/jats:p>","DOI":"10.3390\/nano12091417","type":"journal-article","created":{"date-parts":[[2022,4,21]],"date-time":"2022-04-21T03:46:11Z","timestamp":1650512771000},"page":"1417","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Pore Ordering in Anodic Aluminum Oxide: Interplay between the Pattern of Pore Nuclei and the Crystallographic Orientation of Aluminum"],"prefix":"10.3390","volume":"12","author":[{"given":"Ilya V.","family":"Roslyakov","sequence":"first","affiliation":[{"name":"Department of Materials Science, Lomonosov Moscow State University, 119991 Moscow, Russia"},{"name":"Kurnakov Institute of General and Inorganic Chemistry RAS, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stepan V.","family":"Sotnichuk","sequence":"additional","affiliation":[{"name":"Department of Materials Science, Lomonosov Moscow State University, 119991 Moscow, Russia"},{"name":"Dukhov Research Institute of Automatics (VNIIA), 127055 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9256-6965","authenticated-orcid":false,"given":"Sergey E.","family":"Kushnir","sequence":"additional","affiliation":[{"name":"Department of Materials Science, Lomonosov Moscow State University, 119991 Moscow, Russia"},{"name":"Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0618-5216","authenticated-orcid":false,"given":"Lev A.","family":"Trusov","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia"},{"name":"Department of Materials Science, MSU-BIT University, Shenzhen 517182, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3382-2460","authenticated-orcid":false,"given":"Ivan V.","family":"Bozhev","sequence":"additional","affiliation":[{"name":"MSU Quantum Technology Centre, 119991 Moscow, Russia"},{"name":"Department of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9353-9114","authenticated-orcid":false,"given":"Kirill S.","family":"Napolskii","sequence":"additional","affiliation":[{"name":"Department of Materials Science, Lomonosov Moscow State University, 119991 Moscow, Russia"},{"name":"Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,4,20]]},"reference":[{"key":"ref_1","unstructured":"Giles, G. (1916). Electrolytic Condenser or Electrolytic Valve. (1,190,886), U.S. Patent."},{"key":"ref_2","unstructured":"Bengough, G.D., and Stuart, J.M. (1924). Improved Process of Protecting Surfaces of Aluminium or Aluminium Alloys. (223,994), UK Patent."},{"key":"ref_3","unstructured":"Bengough, G.D., and Stuart, J.M. (1924). A Process of Producing a Coloured Surface on Aluminium or Aluminium Alloys. (223,995), UK Patent."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"7487","DOI":"10.1021\/cr500002z","article-title":"Porous anodic aluminum oxide: Anodization and templated synthesis of functional nanostructures","volume":"114","author":"Lee","year":"2014","journal-title":"Chem. Rev."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Hourdakis, E., and Nassiopoulou, A.G. (2015, January 26\u201329). Recent advances in high density MIM capacitors using anodic aluminum oxide nanolayers. Proceedings of the Physics, Chemistry and Applications of Nanostructures: Proceedings of International Conference Nanomeeting\u20142015, Minsk, Belarus.","DOI":"10.1142\/9789814696524_0125"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"959","DOI":"10.1021\/nn700389j","article-title":"Porous anodic alumina with continuously manipulated pore\/cell size","volume":"2","author":"Chen","year":"2008","journal-title":"ACS Nano"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"198","DOI":"10.1016\/j.micromeso.2019.04.020","article-title":"Sub-10 nm porous alumina templates to produce sub-10 nm nanowires","volume":"284","author":"Resende","year":"2019","journal-title":"Microporous Mesoporous Mater."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"124947","DOI":"10.1016\/j.surfcoat.2019.124947","article-title":"Effects of ethanol on the efficiency of the formation of anodic alumina in sulfuric acid","volume":"378","author":"Asoh","year":"2019","journal-title":"Surf. Coat. Technol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"471","DOI":"10.1016\/j.electacta.2015.12.162","article-title":"Self-ordered porous alumina fabricated via phosphonic acid anodizing","volume":"190","author":"Akiya","year":"2016","journal-title":"Electrochim. Acta"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"362","DOI":"10.1016\/j.electacta.2017.04.140","article-title":"Role of electrode reaction kinetics in self-ordering of porous anodic alumina","volume":"241","author":"Roslyakov","year":"2017","journal-title":"Electrochim. Acta"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"955","DOI":"10.1134\/S1027451019050343","article-title":"Porous anodic alumina films grown on Al(111) single crystals","volume":"13","author":"Roslyakov","year":"2019","journal-title":"J. Surf. Investig. X-ray Synchrotron Neutron Tech."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1016\/j.tsf.2013.02.056","article-title":"The effect of anodizing temperature on structural features and hexagonal arrangement of nanopores in alumina synthesized by two-step anodizing in oxalic acid","volume":"534","author":"Zaraska","year":"2013","journal-title":"Thin Solid Film."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"88","DOI":"10.1016\/j.electacta.2019.06.111","article-title":"Complex influence of temperature on oxalic acid anodizing of aluminium","volume":"319","author":"Leontiev","year":"2019","journal-title":"Electrochim. Acta"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"103506","DOI":"10.1149\/1945-7111\/ab9d65","article-title":"Effect of aluminum anode temperature on growth rate and structure of nanoporous anodic alumina","volume":"167","author":"Chernyakova","year":"2020","journal-title":"J. Electrochem. Soc."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/j.jelechem.2018.05.038","article-title":"Effect of inter-electrode separation in the fabrication of nanoporous alumina by anodization","volume":"823","author":"Salerno","year":"2018","journal-title":"J. Electroanal. Chem."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"581","DOI":"10.2174\/1573413711666150415225311","article-title":"A review of quantitative arrangement analysis methods applied to nanostructured anodic oxides characterization","volume":"11","year":"2015","journal-title":"Curr. Nanosci."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1416","DOI":"10.1016\/j.surfcoat.2011.09.004","article-title":"First step of anodization influences the final nanopore arrangement in anodized alumina","volume":"206","author":"Stepniowski","year":"2011","journal-title":"Surf. Coat. Technol."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1016\/j.matchar.2014.05.003","article-title":"Advanced morphological analysis of patterns of thin anodic porous alumina","volume":"94","author":"Toccafondi","year":"2014","journal-title":"Mater. Charact."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"19698","DOI":"10.1021\/acs.jpcc.6b05268","article-title":"Crystallography-induced correlations in pore ordering of anodic alumina films","volume":"120","author":"Roslyakov","year":"2016","journal-title":"J. Phys. Chem. C"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"449","DOI":"10.1134\/S0021364007090081","article-title":"Two-dimensional spatially ordered Al2O3 systems: Small-angle neutron scattering investigation","volume":"85","author":"Grigoriev","year":"2007","journal-title":"JETP Lett."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1016\/j.electacta.2019.03.098","article-title":"Aluminium anodizing in selenic acid: Electrochemical behaviour, porous structure, and ordering regimes","volume":"307","author":"Gordeeva","year":"2019","journal-title":"Electrochim. Acta"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"2470","DOI":"10.1021\/cm980163a","article-title":"On the growth of highly ordered pores in anodized aluminum oxide","volume":"10","author":"Li","year":"1998","journal-title":"Chem. Mater."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"677","DOI":"10.1021\/nl025537k","article-title":"Self-ordering regimes of porous alumina: The 10% porosity rule","volume":"2","author":"Nielsch","year":"2002","journal-title":"Nano Lett."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"531","DOI":"10.1107\/S0021889810009131","article-title":"Long-range ordering in anodic alumina films: A microradian X-ray diffraction study","volume":"43","author":"Napolskii","year":"2010","journal-title":"J. Appl. Cryst."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"5084","DOI":"10.1016\/j.surfcoat.2008.04.089","article-title":"Influence of the microstructure of the aluminum substrate on the regularity of the nanopore arrangement in an alumina layer formed by anodic oxidation","volume":"202","author":"Beck","year":"2008","journal-title":"Surf. Coat. Technol."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"383","DOI":"10.1016\/j.matchemphys.2011.03.022","article-title":"Regularity of nanopores in anodic alumina formed on orientated aluminium single-crystals","volume":"128","author":"Beck","year":"2011","journal-title":"Mater. Chem. Phys."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"27511","DOI":"10.1021\/acs.jpcc.7b09998","article-title":"Growth of porous anodic alumina on low-index surfaces of Al single crystals","volume":"121","author":"Roslyakov","year":"2017","journal-title":"J. Phys. Chem. C"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1002\/jccs.201900218","article-title":"Creating anodic alumina nanochannel arrays with custom-made geometry","volume":"67","author":"Liu","year":"2020","journal-title":"J. Chin. Chem. Soc."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"741","DOI":"10.1038\/nmat1717","article-title":"Fast fabrication of long-range ordered porous alumina membranes by hard anodization","volume":"5","author":"Lee","year":"2006","journal-title":"Nat. Mater."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"1574","DOI":"10.1002\/1521-4095(200110)13:20<1574::AID-ADMA1574>3.0.CO;2-9","article-title":"Aluminum oxide photonic crystals grown by a new hybrid method","volume":"13","author":"Mikulskas","year":"2001","journal-title":"Adv. Mater."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1149\/1.1390979","article-title":"Polycrystalline and monocrystalline pore arrays with large interpore distance in anodic alumina. Electrochem","volume":"3","author":"Li","year":"2000","journal-title":"Solid-State Lett."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1857","DOI":"10.1002\/adfm.201303268","article-title":"Constrained order in nanoporous alumina with high aspect ratio: Smart combination of interference lithography and hard anodization","volume":"24","author":"Waleczek","year":"2014","journal-title":"Adv. Funct. Mater."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"120","DOI":"10.1063\/1.1335543","article-title":"Ordered anodic alumina nanochannels on focused-ion-beam-prepatterned aluminum surfaces","volume":"78","author":"Liu","year":"2001","journal-title":"Appl. Phys. Lett."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1281","DOI":"10.1063\/1.1555689","article-title":"High-speed focused-ion-beam patterning for guiding the growth of anodic alumina nanochannel arrays","volume":"82","author":"Liu","year":"2003","journal-title":"Appl. Phys. Lett."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"B152","DOI":"10.1149\/1.1355686","article-title":"Conditions for fabrication of ideally ordered anodic porous alumina using pretextured Al","volume":"148","author":"Asoh","year":"2001","journal-title":"J. Electrochem. Soc."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"3441","DOI":"10.1021\/am400520d","article-title":"In situ determination of the pore opening point during wet-chemical etching of the barrier layer of porous anodic aluminum oxide: Nonuniform impurity distribution in anodic oxide","volume":"5","author":"Han","year":"2013","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"11922","DOI":"10.1039\/c2jm31710a","article-title":"Origin of long-range orientational pore ordering in anodic films on aluminium","volume":"22","author":"Napolskii","year":"2012","journal-title":"J. Mater. Chem."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"1705","DOI":"10.1107\/S002188981302579X","article-title":"Longitudinal pore alignment in anodic alumina films grown on polycrystalline metal substrates","volume":"46","author":"Roslyakov","year":"2013","journal-title":"J. Appl. Cryst."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"5264","DOI":"10.1021\/cm202461z","article-title":"Precise control of nanohoneycomb ordering over anodic aluminum oxide of square centimeter areas","volume":"23","author":"Ng","year":"2011","journal-title":"Chem. Mater."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"33LT01:1","DOI":"10.1088\/1361-6528\/abfeea","article-title":"Permeability of anodic alumina membranes grown on low-index aluminium surfaces","volume":"32","author":"Roslyakov","year":"2021","journal-title":"Nanotechnology"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"9287","DOI":"10.1021\/acs.jpcc.1c01482","article-title":"Evolution of pore ordering during anodizing of aluminium single crystals: In situ small-angle X-ray scattering study","volume":"125","author":"Roslyakov","year":"2021","journal-title":"J. Phys. Chem. C"},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Roslyakov, I.V., Kushnir, S.E., Tsymbarenko, D.M., Sapoletova, N.A., Trusov, L.A., and Napolskii, K.S. (2022). New insight into anodizing aluminium with focused-ion-beam pre-patterning. Nanotechnology, submitted.","DOI":"10.1088\/1361-6528\/ac8e75"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"671","DOI":"10.1038\/nmeth.2089","article-title":"NIH Image to ImageJ: 25 years of image analysis","volume":"9","author":"Schneider","year":"2012","journal-title":"Nat. Methods"},{"key":"ref_44","unstructured":"(2022, March 28). Software for Analysis of Pore Ordering in Anodic Alumina. Available online: http:\/\/www.eng.fnm.msu.ru\/en\/software\/."}],"container-title":["Nanomaterials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2079-4991\/12\/9\/1417\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T22:57:48Z","timestamp":1760137068000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2079-4991\/12\/9\/1417"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,4,20]]},"references-count":44,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2022,5]]}},"alternative-id":["nano12091417"],"URL":"https:\/\/doi.org\/10.3390\/nano12091417","relation":{},"ISSN":["2079-4991"],"issn-type":[{"value":"2079-4991","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,4,20]]}}}