Realization of High Performance AR‐coatings with Dust‐ and Water‐Repellent Properties

Bruynooghe, S.; Spinzig, S.; Fliedner, Michael; Hsu, Ghia-Huei

doi:10.1002/vipr.200800364

Cited by 8 publications

(2 citation statements)

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“…Some papers suggested that effective remedies could be casual cleaning, static devices and optimization for tilt angle according to the dust information in the region . Others report a special glass coating that promotes self‐cleaning . The costs and effectiveness of these methods are not yet known and will require further investigations.…”

Section: Introductionmentioning

confidence: 99%

Dust-induced shading on photovoltaic modules

Qasem

Betts

Müllejans

et al. 2012

Prog. Photovolt: Res. Appl.

195

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The effect of dust on photovoltaic modules is investigated with respect to concentration and spectral transmittance. Samples were collected in the form of raw dust as well as accumulated dust on exposed sheets of glass at different tilt angles. Spectral transmittance of the samples was determined. Transmittance variation between top, middle and bottom was identified for samples collected at different inclinations, where the worst case was seen at a tilt angle of 30 o with a nonuniformity of 4.4% in comparison with 0.2% for the 90 tilt. The measured data showed a decrease in transmittance at wavelengths <570 nm. Integrating this with measured spectral responses of different technologies demonstrates that wide band-gap thin-film technologies are affected more than, for example crystalline silicon technologies. The worst case is amorphous silicon, where a 33% reduction in photocurrent is predicted for a dust concentration of 4.25 mg/cm 2 . Similarly, crystalline silicon and CIGS technologies are predicted to be less affected, with 28.6% and 28.5% reductions in photocurrent, respectively. The same procedure was repeated with varying Air Mass (AM), tilt angle and dust concentration values to produce a soiling ratio table for different technologies under different AM, tilt angle and dust concentration values. Copyright

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Section: Introductionmentioning

confidence: 99%

Dust-induced shading on photovoltaic modules

Qasem

Betts

Müllejans

et al. 2012

Prog. Photovolt: Res. Appl.

195

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“…enhanced the light transmittance of the sheet surface by coating it with an antireflective material (containing expensive MgF 2 material) and, subsequently, with a hydrophobic and oleophobic coating material. They achieved a contact angle of 110° after coating with 0.14% reflectance at incident angle of 78° in the spectral region 400–680 nm . Wang et al .…”

Section: Introductionmentioning

confidence: 99%

Surface and wetting characteristics of textured bisphenol‐A based polycarbonate surfaces: Acetone‐induced crystallization texturing methods

Owais

Khaled

Yilbaş

et al. 2015

J of Applied Polymer Sci

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Polycarbonate (PC) sheet is a promising material for facile patterning to induce hydrophobic self-cleaning and dust repelling properties for photovoltaic panels' protection. An investigation to texture PC sheet surfaces to develop a self-cleaning structure using solvent induced-crystallization is carried out using acetone. Acetone is applied in both liquid and vapor states to generate a hierarchically structured surface that would improve its contacts angle and therefore improve hydrophobicity. The surface texture is investigated and characterized using atomic force microscopy, contact angle technique (Goniometer), optical microscopy, ultravioletvisible spectroscopy (UV-vis) and Fourier transform infrared spectroscopy. The findings revealed that the liquid acetone-induced crystallization of PC surface leads to a hierarchal and hydrophobic surface with an average contact angle of 1358 and average transmittance <2%. However, the acetone vapor induced-crystallization results in a slightly hydrophilic hierarchal textured surface with high transmittance; in which case, average contact angle of 898 and average transmittance of 69% are achieved. V C 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43074.

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Hydrophobe Grenzflächenmodifikationen

Fliedner¹,

Chávez²

2012

Vak Forsch Prax

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Durch Aufbringen hydrophoben und oleophoben Nanoschichten lassen sich Grenzflächen modifizieren, ohne die ursprünglichen funktionellen Eigenschaften der Grenzfläche zu beeinflussen. Nasschemisch hergestellte Nanoschichten haben üblicherweise eine irreguläre, aus vielen unterschiedlichen Bausteinen zusammengesetzte Struktur, die auch polare und damit hydrophile Komponenten enthält. Im Gegensatz dazu lassen sich bei der Gasphasenabscheidung unter Vakuum durch entsprechende Prozessführung die Grenzflächen der zu beschichtenden Objekte den Anforderungen einer selbstorganisierenden hydrophoben Nanostruktur optimal anpassen. Die Gebrauchseigenschaften von Grenzflächen mit reflexmindernden, reflektierenden oder funktionellen Schichten werden durch Auftragen einer Nanoschicht im praktischen Gebrauch mit geringem Verfahrens‐ und Maschinenaufwand erheblich verbessert.

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Realization of High Performance AR‐coatings with Dust‐ and Water‐Repellent Properties

Cited by 8 publications

References 0 publications

Dust-induced shading on photovoltaic modules

Dust-induced shading on photovoltaic modules

Surface and wetting characteristics of textured bisphenol‐A based polycarbonate surfaces: Acetone‐induced crystallization texturing methods

Hydrophobe Grenzflächenmodifikationen

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