Functional nano-textured titania-coatings with self-cleaning and antireflective properties for photovoltaic surfaces

Salvaggio, Maria Grazia; Passalacqua, Rosalba; Abate, Salvatore; Perathoner, Siglinda; Lanza, M.; Stassi, A.

doi:10.1016/j.solener.2015.12.012

Cited by 45 publications

(20 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7. This particle size effect of TiO2 on the coating film efficiency has been reported earlier by Salvaggio et al [24] when they reported on the increase of surface roughness of the coated films when TiO2 nanoparticle size was reduced from 31 to 20 nm. Fig.…”

Section: Resultssupporting

confidence: 85%

Theoretical and Experimental Characterization of Efficient Anti-Dust Coatings under Desert Conditions

Isaifan¹,

Johnson²,

Mansour³

et al. 2018

JTFR

View full text Add to dashboard Cite

Transparent titania coatings have self-cleaning and anti-reflection properties (AR) that are of great importance in optical and solar applications. In this work, an efficient and easy to scale up adsorptive self-assembly process is used to coat glass substrates with two TiO2 nanocolloids (TC-1 and TC-2) prepared via polyol method. TEM images of the nanoparticles show an average particle size of 2.6 and 167.7 nm of TC-1 and TC-2, respectively. The theoretical values for the coating thickness as well as for the antireflective index were compared with the experimental values obtained via elipsometer measurements. The self-cleaning properties were investigated by optical microscopy, atomic force microscopy, contact angle, surface tension and UV-vis spectroscopy. The optical images show 56% reduction of dust deposition rate with lower adhesion force over the best performing coated surfaces TC-1 compared with bare glass substrates and TC-2 after 7 days of soiling.

show abstract

Section: Resultssupporting

confidence: 85%

Theoretical and Experimental Characterization of Efficient Anti-Dust Coatings under Desert Conditions

Isaifan¹,

Johnson²,

Mansour³

et al. 2018

JTFR

View full text Add to dashboard Cite

show abstract

“…It has been reported that the contact angles of the films deposited on glass substrates depend on the characteristics of the nanocolloids 10 . Salvaggio et al .…”

Section: Resultsmentioning

confidence: 99%

“…In order to reduce the accumulation of contaminants on PV surfaces, self-cleaning properties should be combined with the efficient photo catalytic activity of titania. Both self-cleaning and AR properties depend on the surface nano-texture and roughness 10 . The latter influences the optical properties of the thin film and depends on the preparation procedure as well 12 .…”

Section: Introductionmentioning

confidence: 99%

Improved Self-cleaning Properties of an Efficient and Easy to Scale up TiO2 Thin Films Prepared by Adsorptive Self-Assembly

Isaifan

Samara

Suwaileh

et al. 2017

Sci Rep

View full text Add to dashboard Cite

Transparent titania coatings have self-cleaning and anti-reflection properties (AR) that are of great importance to minimize soiling effect on photovoltaic modules. In this work, TiO2 nanocolloids prepared by polyol reduction method were successfully used as coating thin films onto borosilicate glass substrates via adsorptive self-assembly process. The nanocolloids were characterized by transmission electron microscopy and x-ray diffraction. The average particle size was around 2.6 nm. The films which have an average thickness of 76.2 nm and refractive index of 1.51 showed distinctive anti soiling properties under desert environment. The film surface topography, uniformity, wettability, thickness and refractive index were characterized using x-ray diffraction, atomic force microscopy, scanning electron microscopy, water contact angle measurements and ellipsometry. The self-cleaning properties were investigated by optical microscopy and UV-Vis spectroscopy. The optical images show 56% reduction of dust deposition rate over the coated surfaces compared with bare glass substrates after 7 days of soiling. The transmission optical spectra of these films collected at normal incidence angle show high anti-reflection properties with the coated substrates having transmission loss of less than 6% compared to bare clean glass.

show abstract

“…Perhaps equally important to the processing speed is the lack of complexity. There are many excellent publications demonstrating surface texturing (often at the sub 10-micron scale) of surfaces for a similar end goal [19,[37][38][39][40]. Many processes used for this can be timeconsuming when compared to the laser process and are certainly more complicated than the "point and shoot" approach of industrial laser usage.…”

Section: Potential For Enhancing Photovoltaics and Thementioning

confidence: 99%

Rapid, Chemical-Free Generation of Optically Scattering Structures in Poly(ethylene terephthalate) Using a CO₂ Laser for Lightweight and Flexible Photovoltaic Applications

Hodgson

Gillett

2018

International Journal of Photoenergy

View full text Add to dashboard Cite

Highly light scattering structures have been generated in a poly(ethylene terephthalate) (PET) film using a CO2 laser. The haze, and in some cases the transparency, of the PET films have been improved by varying the processing parameters of the laser (namely, scanning velocity, laser output power, and spacing between processed tracks). When compared with the unprocessed PET, the haze has improved from an average value of 3.26% to a peak of 55.42%, which equates to an absolute improvement of 52.16% or a 17-fold increase. In addition to the optical properties, the surfaces have been characterised using optical microscopy and mapped with an optical profilometer. Key surface parameters that equate to the amount and structure of surface roughness and features have been analysed. The CO2 laser generates microstructures at high speed, without affecting the bulk properties of the material, and is inherently a chemical-free process making it particularly applicable for use in industry, fitting well with the high-throughput, roll to roll processes associated with the production of flexible organic photovoltaic devices.

show abstract

Functional nano-textured titania-coatings with self-cleaning and antireflective properties for photovoltaic surfaces

Cited by 45 publications

References 72 publications

Theoretical and Experimental Characterization of Efficient Anti-Dust Coatings under Desert Conditions

Theoretical and Experimental Characterization of Efficient Anti-Dust Coatings under Desert Conditions

Improved Self-cleaning Properties of an Efficient and Easy to Scale up TiO2 Thin Films Prepared by Adsorptive Self-Assembly

Rapid, Chemical-Free Generation of Optically Scattering Structures in Poly(ethylene terephthalate) Using a CO₂ Laser for Lightweight and Flexible Photovoltaic Applications

Contact Info

Product

Resources

About

Functional nano-textured titania-coatings with self-cleaning and antireflective properties for photovoltaic surfaces

Cited by 45 publications

References 72 publications

Theoretical and Experimental Characterization of Efficient Anti-Dust Coatings under Desert Conditions

Theoretical and Experimental Characterization of Efficient Anti-Dust Coatings under Desert Conditions

Improved Self-cleaning Properties of an Efficient and Easy to Scale up TiO2 Thin Films Prepared by Adsorptive Self-Assembly

Rapid, Chemical-Free Generation of Optically Scattering Structures in Poly(ethylene terephthalate) Using a CO2 Laser for Lightweight and Flexible Photovoltaic Applications

Contact Info

Product

Resources

About

Rapid, Chemical-Free Generation of Optically Scattering Structures in Poly(ethylene terephthalate) Using a CO₂ Laser for Lightweight and Flexible Photovoltaic Applications