Characterisation of Angular Dependent Optical Properties of Different Coloring Technologies Employed in BIPV Products.

Markus Babin; Adrian Alejo Santamaria Lancia; Anders Thorseth; Sune Thorsteinsson

doi:10.4229/EUPVSEC20202020-4AV.2.32

Characterisation of Angular Dependent Optical Properties of Different Coloring Technologies Employed in BIPV Products.

Markus Babin, Adrian Alejo Santamaria Lancia^*, Anders Thorseth, Sune Thorsteinsson

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Accurate determination of the angular dependent color of BIPV products is necessary to aid architects in matching BIPVs to surrounding building materials. A methodology for the study and characterization of visual appearance at different viewing angles is presented. This includes measurements of spectra of reflected light from BIPV samples for the determination of single-plane BRDF and IAM. BRDFs are converted to CIELAB color coordinates to analyze lightness, chroma and color saturation. Samples of three different technologies (printed ceramic inks, thin-film coatings and colored interlayers) are investigated. Results show vastly different angular dependency for sample groups, ranging from almost uniform (ceramic ink) to iridescent (thin-film coating) appearance. Differences are also observed between ceramic inks of different colors with correlation between specularity of reflection, IAM and angular constancy of appearance. For thin-film coated samples, correlation is shown between reflectance spectra, IAM and iridescence. Samples with colored interlayers show irregular angular appearance due to a textured glass surface.

Original language	English
Title of host publication	Proceedings of 37^th European Photovoltaic Solar Energy Conference and Exhibition
Publication date	2020
Pages	1136-1142
ISBN (Print)	3-936338-73-6
DOIs	https://doi.org/10.4229/EUPVSEC20202020-4AV.2.32
Publication status	Published - 2020
Event	37th European PV Solar Energy Conference and Exhibition - Online Duration: 7 Sept 2020 → 11 Sept 2020 Conference number: 37 https://www.photovoltaic-conference.com/

Conference

Conference	37th European PV Solar Energy Conference and Exhibition
Number	37
Location	Online
Period	07/09/2020 → 11/09/2020
Internet address	https://www.photovoltaic-conference.com/

Keywords

Building Integrated PV (BIPV)
Experimental Methods
Optical Properties
Performance
Color

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10.4229/EUPVSEC20202020-4AV.2.32

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@inproceedings{8e2a19555c6243098e87070837445c4a,

title = "Characterisation of Angular Dependent Optical Properties of Different Coloring Technologies Employed in BIPV Products.",

abstract = "Accurate determination of the angular dependent color of BIPV products is necessary to aid architects in matching BIPVs to surrounding building materials. A methodology for the study and characterization of visual appearance at different viewing angles is presented. This includes measurements of spectra of reflected light from BIPV samples for the determination of single-plane BRDF and IAM. BRDFs are converted to CIELAB color coordinates to analyze lightness, chroma and color saturation. Samples of three different technologies (printed ceramic inks, thin-film coatings and colored interlayers) are investigated. Results show vastly different angular dependency for sample groups, ranging from almost uniform (ceramic ink) to iridescent (thin-film coating) appearance. Differences are also observed between ceramic inks of different colors with correlation between specularity of reflection, IAM and angular constancy of appearance. For thin-film coated samples, correlation is shown between reflectance spectra, IAM and iridescence. Samples with colored interlayers show irregular angular appearance due to a textured glass surface.",

keywords = "Building Integrated PV (BIPV), Experimental Methods, Optical Properties, Performance, Color",

author = "Markus Babin and {Santamaria Lancia}, {Adrian Alejo} and Anders Thorseth and Sune Thorsteinsson",

year = "2020",

doi = "10.4229/EUPVSEC20202020-4AV.2.32",

language = "English",

isbn = "3-936338-73-6",

pages = "1136--1142",

booktitle = "Proceedings of 37th European Photovoltaic Solar Energy Conference and Exhibition",

note = "37th European PV Solar Energy Conference and Exhibition, EU PVSEC ; Conference date: 07-09-2020 Through 11-09-2020",

url = "https://www.photovoltaic-conference.com/",

}

Babin, M, Santamaria Lancia, AA, Thorseth, A & Thorsteinsson, S 2020, Characterisation of Angular Dependent Optical Properties of Different Coloring Technologies Employed in BIPV Products. in Proceedings of 37^th European Photovoltaic Solar Energy Conference and Exhibition. pp. 1136-1142, 37th European PV Solar Energy Conference and Exhibition, 07/09/2020. https://doi.org/10.4229/EUPVSEC20202020-4AV.2.32

Characterisation of Angular Dependent Optical Properties of Different Coloring Technologies Employed in BIPV Products. / Babin, Markus; Santamaria Lancia, Adrian Alejo; Thorseth, Anders et al.
Proceedings of 37^th European Photovoltaic Solar Energy Conference and Exhibition. 2020. p. 1136-1142.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Characterisation of Angular Dependent Optical Properties of Different Coloring Technologies Employed in BIPV Products.

AU - Babin, Markus

AU - Santamaria Lancia, Adrian Alejo

AU - Thorseth, Anders

AU - Thorsteinsson, Sune

N1 - Conference code: 37

PY - 2020

Y1 - 2020

N2 - Accurate determination of the angular dependent color of BIPV products is necessary to aid architects in matching BIPVs to surrounding building materials. A methodology for the study and characterization of visual appearance at different viewing angles is presented. This includes measurements of spectra of reflected light from BIPV samples for the determination of single-plane BRDF and IAM. BRDFs are converted to CIELAB color coordinates to analyze lightness, chroma and color saturation. Samples of three different technologies (printed ceramic inks, thin-film coatings and colored interlayers) are investigated. Results show vastly different angular dependency for sample groups, ranging from almost uniform (ceramic ink) to iridescent (thin-film coating) appearance. Differences are also observed between ceramic inks of different colors with correlation between specularity of reflection, IAM and angular constancy of appearance. For thin-film coated samples, correlation is shown between reflectance spectra, IAM and iridescence. Samples with colored interlayers show irregular angular appearance due to a textured glass surface.

AB - Accurate determination of the angular dependent color of BIPV products is necessary to aid architects in matching BIPVs to surrounding building materials. A methodology for the study and characterization of visual appearance at different viewing angles is presented. This includes measurements of spectra of reflected light from BIPV samples for the determination of single-plane BRDF and IAM. BRDFs are converted to CIELAB color coordinates to analyze lightness, chroma and color saturation. Samples of three different technologies (printed ceramic inks, thin-film coatings and colored interlayers) are investigated. Results show vastly different angular dependency for sample groups, ranging from almost uniform (ceramic ink) to iridescent (thin-film coating) appearance. Differences are also observed between ceramic inks of different colors with correlation between specularity of reflection, IAM and angular constancy of appearance. For thin-film coated samples, correlation is shown between reflectance spectra, IAM and iridescence. Samples with colored interlayers show irregular angular appearance due to a textured glass surface.

KW - Building Integrated PV (BIPV)

KW - Experimental Methods

KW - Optical Properties

KW - Performance

KW - Color

U2 - 10.4229/EUPVSEC20202020-4AV.2.32

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M3 - Article in proceedings

SN - 3-936338-73-6

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BT - Proceedings of 37th European Photovoltaic Solar Energy Conference and Exhibition

T2 - 37th European PV Solar Energy Conference and Exhibition

Y2 - 7 September 2020 through 11 September 2020

ER -

Characterisation of Angular Dependent Optical Properties of Different Coloring Technologies Employed in BIPV Products.

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