High performance broad band antireflective coatings using a facile synthesis of ink-bottle mesoporous MgF2 nanoparticles for solar applications

Karthik, Dhadala; Pendse, Saloni; Sakthivel, S.; Ramasamy, Easwaramoorthi; Joshi, Shrikant V.

doi:10.1016/j.solmat.2016.08.007

Cited by 53 publications

(14 citation statements)

References 32 publications

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“…As was pointed out by Yoldas and Partlow, SiO 2 , Al 2 O 3 , La 2 O 3 , ThO 2 , and HfO are all potential materials for the UV region, but due to high refractive indices (except for SiO 2 ), a porosity of higher than 80% would be needed . It seems that among inorganic oxides and fluorides, MgF 2 , SiO 2 , CaF 2 , TiO 2 , and Al 2 O 3 are still some of the only practical materials of interest for porous AR coatings. Of these, TiO 2 might be one of the most attractive materials for future work due to its potential as a hydrophobic/hydrophilic (self‐cleaning) surface, which will be discussed later.…”

Section: Ar Coatingsmentioning

confidence: 99%

Transparent Surfaces Inspired by Nature

Motamedi

Warkiani

Taylor

2018

Advanced Optical Materials

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Nature has long inspired scientists and engineers. As one ubiquitous example of this, nature has provided all with several clever methods to absorb, repel, and/or allow both sunlight and water to pass through surfaces. Moth's eyes (highly antireflective) and lotus leaves (highly hydrophobic and self‐cleaning) represent durable natural surfaces which exhibit nearly ideal physical and optical properties. Man‐made transparent surfaces must also be able to cope with water and dust while reaching the maximum possible light transmission for solar collectors, displays, and other optical devices. To explore the link between these – particularly for transparent surfaces – this review puts the physics, progress, and limitations of synthetic materials in context with natural materials. This perspective reveals that there is still much more to learn (and implement) if it is hoped to match the multifunctionality and resilience of natural materials.

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Section: Ar Coatingsmentioning

confidence: 99%

Transparent Surfaces Inspired by Nature

Motamedi

Warkiani

Taylor

2018

Advanced Optical Materials

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“…Large (~35 µm) grains of magnesium fluoride hydrate (MgF 2 × x H 2 O) were dissolved in n -propanol; in the presence of hydrochloric acid, porous particles in the size range around 50 nm are formed under solvothermal conditions at 200 °C. Using such precursor solutions, antireflective coatings were deposited on solar glass, a significant improvement of cell performance is claimed [ 15 ].…”

Section: Synthetic Approachesmentioning

confidence: 99%

Sol-Gel Processing of MgF2 Antireflective Coatings

Löbmann

2018

Nanomaterials

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There are different approaches for the preparation of porous antireflective λ/4 MgF2 films from liquid precursors. Among these, the non-aqueous fluorolytic synthesis of precursor solutions offers many advantages in terms of processing simplicity and scalability. In this paper, the structural features and optical performance of the resulting films are highlighted, and their specific interactions with different inorganic substrates are discussed. Due to their excellent abrasion resistance, coatings have a high potential for applications on glass. Using solvothermal treatment of precursor solutions, also the processing of thermally sensitive polymer substrates becomes feasible.

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“…In 2017, Karthik et al reported on high performance broad band antireflective mesoporous MgF 2 coatings for solar applications [35]. The MgF 2 nanoparticles were synthesized from MgCl 2 and HF/water.…”

Section: Magnesium Fluoridementioning

confidence: 99%

“…This is the reason only a few publications exist worldwide about this topic, although increasing research activities can be observed recently. In 2017, Karthik et al reported on high performance broad band antireflective mesoporous MgF2 coatings for solar applications [35]. The MgF2 nanoparticles were synthesized from MgCl2 and HF/water.…”

Section: Magnesium Fluoridementioning

confidence: 99%

Fluorolytic Sol–Gel Synthesis of Nanometal Fluorides: Accessing New Materials for Optical Applications

Scheurell

Kemnitz

2018

Inorganics

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The potential of fluorolytic sol–gel synthesis for a wide variety of applications in the field of optical materials is reviewed. Based on the fluorolytic sol–gel synthesis of nanometal fluorides, sols of complex fluorometalates have become available that exhibit superior optical properties over known classical binary metal fluorides as, for instance, magnesium fluoride, calcium fluoride, or strontium fluoride, respectively. The synthesis of transparent sols of magnesium fluoroaluminates of the general composition MgxAlFy, and fluoroperovskites, [K1−xNax]MgF3, is reported. Antireflective coatings fabricated from MgF2, CaF2, MgxAlFy, and [K1−xNax]MgF3 sols and their relevant properties are comprehensively described. Especially the heavier alkaline earth metal fluorides and the fluorperovskites crystallizing in a cubic crystal structure are excellent hosts for rare earth (RE) metals. Thus, the second chapter reflects the synthesis approach and the properties of luminescent systems based on RE-doped alkaline earth metal fluorides and [K1−xNax]MgF3 phases.

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High performance broad band antireflective coatings using a facile synthesis of ink-bottle mesoporous MgF2 nanoparticles for solar applications

Cited by 53 publications

References 32 publications

Transparent Surfaces Inspired by Nature

Transparent Surfaces Inspired by Nature

Sol-Gel Processing of MgF2 Antireflective Coatings

Fluorolytic Sol–Gel Synthesis of Nanometal Fluorides: Accessing New Materials for Optical Applications

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