Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Engineering of Hybrid Nanoporous Anodic Alumina Photonic Crystals by Heterogeneous Pulse Anodization

  • Identification data

    Identifier: imarina:9298354
  • Authors:

    Lim, Siew Yee
    Law, Cheryl Suwen
    Marsal, Lluis F.
    Santos, Abel
    Scientific Reports
    10.1038/s41598-018-27775-6
    Scientific Reports. 8
  • Others:

    Author, as appears in the article.: Lim, Siew Yee; Law, Cheryl Suwen; Marsal, Lluis F.; Santos, Abel;
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Marsal Garví, Luis Francisco
    Keywords: Single quantum-dot Sensitized solar-cell Porous alumina Oxide Nanocavity Hard anodization Distributed bragg reflectors Design Bandgap Arrays
    Abstract: In this study, we present an advanced nanofabrication approach, so-called 'heterogeneous pulse anodization' (HPA), in which galvanostatic stepwise and apodized sinusoidal pulse anodizations are combined in a single process. This novel anodization method enables the precise optical engineering of the characteristic photonic stopbands (PSBs) of nanoporous anodic alumina photonic crystals (NAA-PCs). The resulting structures are hybrid PCs (Hy-NAA-PCs) composed of distributed Bragg reflectors (DBRs) and apodized gradient-index filters (APO-GIFs) embedded within the same PC structure. The modification of various anodization parameters such as anodization period, relative and total anodization time, structural arrangement of PCs within Hy-NAA-PCs, and pore widening time allows the fine-tuning of the PSBs' features (i.e. number, position and bandwidth of central wavelength) across the spectral regions. The effects of these fabrication parameters are systematically assessed, revealing that the positions of the characteristic transmission bands of Hy-NAA-PCs are highly controllable. Our study provides a comprehensive rationale towards the development of unique Hy-NAA-PCs with controllable optical properties, which could open new opportunities for a plethora of applications.
    Thematic Areas: Zootecnia / recursos pesqueiros Saúde coletiva Química Psicología Odontología Nutrição Multidisciplinary sciences Multidisciplinary Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Letras / linguística Interdisciplinar Geografía Geociências Farmacia Engenharias iv Engenharias iii Engenharias ii Enfermagem Educação física Educação Economia Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Biotecnología Biodiversidade Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: lluis.marsal@urv.cat
    Author identifier: 0000-0002-5976-1408
    Record's date: 2024-07-20
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.nature.com/articles/s41598-018-27775-6
    Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Scientific Reports. 8
    APA: Lim, Siew Yee; Law, Cheryl Suwen; Marsal, Lluis F.; Santos, Abel; (2018). Engineering of Hybrid Nanoporous Anodic Alumina Photonic Crystals by Heterogeneous Pulse Anodization. Scientific Reports, 8(), -. DOI: 10.1038/s41598-018-27775-6
    Article's DOI: 10.1038/s41598-018-27775-6
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2018
    Publication Type: Journal Publications
  • Keywords:

    Multidisciplinary,Multidisciplinary Sciences
    Single quantum-dot
    Sensitized solar-cell
    Porous alumina
    Oxide
    Nanocavity
    Hard anodization
    Distributed bragg reflectors
    Design
    Bandgap
    Arrays
    Zootecnia / recursos pesqueiros
    Saúde coletiva
    Química
    Psicología
    Odontología
    Nutrição
    Multidisciplinary sciences
    Multidisciplinary
    Medicina veterinaria
    Medicina iii
    Medicina ii
    Medicina i
    Materiais
    Matemática / probabilidade e estatística
    Letras / linguística
    Interdisciplinar
    Geografía
    Geociências
    Farmacia
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Enfermagem
    Educação física
    Educação
    Economia
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Ciências agrárias i
    Ciência de alimentos
    Ciência da computação
    Biotecnología
    Biodiversidade
    Astronomia / física
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