Porous anodic alumina with low refractive index for broadband graded-index antireflection coatings

Chen, Junwu; Wang, Biao; Yang, Yi; Shi, Yuanyuan; Xu, Gaojie; Cui, Ping

doi:10.1364/ao.51.006839

Cited by 23 publications

(15 citation statements)

References 14 publications

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“…In this work, it is also remarkable that no differences in transmittance increase between tapered and cylindrical nanopores can be registered. Besides using p-AAO as a template to shape other materials such as polymers, a graded p-AAO layer can be used as an AR coating itself, as demonstrated by Chen et al [139]. In this work, an AR coating based on graded p-AAO is obtained on a glass substrate with large area (4 cm × 4 cm).…”

Section: Porous Anodic Aluminum Oxide In Photon-energy Conversionmentioning

confidence: 94%

Optical Properties of Nanoporous Anodic Alumina and Derived Applications

et al. 2015

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Inexpensive formation of periodically ordered structures with periodicities and feature sizes lower than 100 nm has triggered a vast amount or research in recent years. Of particular interest in nanotechnology is the nanoporous alumina, which can be produced with a self-organized arrangement of pores in the adequate anodization conditions. Most of the interest of this material is based in its outstanding physical and chemical and properties, and more specifically in its optical properties. The interaction of light with the nanostructured porous alumina gives rise to a wealth of optical properties that have their interest both in research level and also in application. In this work we aim at giving an extensive review of the published research on the optical properties of nanoporous alumina. The review will account for the different studied optical properties of this material such as the existence of a photonic stop band originated from its quasi-random nanostructure, the interferometric and light guiding properties that can be applied to biosensing, the structure nanoengineering to achieve more complex photonic behaviour such as distributed-Bragg reflectors or rugate filters, and the photoluminescence properties. In a second part, a summary of the different applications proposed on the basis of these properties, such as in biotechnology or energy will be given. IntroductionAmong the different features and properties of porous anodic alumina (p-AAO), its optical properties are of special interest and have been the subject of very intensive research. The interaction of light with p-AAO can be analyzed from different points of view: the material interaction, the porous structure interaction or the relation of geometrical features of the nanostructure (periodicity or quasi-periodicity, distance

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Section: Porous Anodic Aluminum Oxide In Photon-energy Conversionmentioning

confidence: 94%

Optical Properties of Nanoporous Anodic Alumina and Derived Applications

et al. 2015

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“…An alternative approach is to grow porous oxides that are viewed optically as a mixture of oxide nanoparticles and air [49][50][51]. These structures can in principle lead to TCO layers with refractive index values very close to that of air, i.e., 1.…”

Section: Nanoparticle Compositesmentioning

confidence: 99%

Optical Evaluation of the Rear Contacts of Crystalline Silicon Solar Cells by Coupled Electromagnetic and Statistical Ray-Optics Modeling

Dabirian

Morales‐Masis

Haug

et al. 2017

IEEE J. Photovoltaics

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“…8 The problems of stability induced by adhesiveness and thermal mismatch are oen associated with that approach. 30,31 These tapered structures with high aspect ratio can enhance transmission over a wide range of wavelengths from visible to near-infrared range. [10][11][12][13][14][15] This is hard to be realized because n for a solid material like quartz ($1.5) is signicantly different from that of air ($1).…”

Section: Introductionmentioning

confidence: 99%

Fabrication of biomimetic patterns for high transmission and antifogging property

Xü

Liu

et al. 2015

RSC Adv.

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Enhancing the transmission of optical components is important for improving the performance of optical and optoelectronic devices such as photovoltaic panels and concentration photovoltaic systems. A simple method to enhance the transmission of quartz slides is presented here by fabricating multiscale tapered pillars on both sides of the quartz slides. The multiscale tapered nanopillars, which introduced a refractive index gradient on both surfaces, were created by reactive ion etching with dewetted Ag thin films as masks. The presence of the gradient on both surfaces greatly reduces the loss of light caused by reflection, which will enhance the total transmission light. Excellent transmission over the visible and near infrared region is achieved after optimizing the parameter of the structure. The transmission of the dual-sided structured quartz is enhanced to higher than 99% over wavelengths from 650 to 850 nm. Meanwhile, the structured quartz exhibits an antifogging property which is needed in optical and optoelectronic devices. † Electronic supplementary information (ESI) available: Details of Ag nanoparticles formed by thermal dewetting, SEM images of the deposited Ag lms of different thicknesses, Photographs of the dual-sided structured lens and plan convex lens are given. See

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Porous anodic alumina with low refractive index for broadband graded-index antireflection coatings

Cited by 23 publications

References 14 publications

Optical Properties of Nanoporous Anodic Alumina and Derived Applications

Optical Properties of Nanoporous Anodic Alumina and Derived Applications

Optical Evaluation of the Rear Contacts of Crystalline Silicon Solar Cells by Coupled Electromagnetic and Statistical Ray-Optics Modeling

Fabrication of biomimetic patterns for high transmission and antifogging property

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