TY - JOUR
T1 - Optimal Design of Multilayer Optical Color Filters for Building-Integrated Photovoltaic (BIPV) Applications
AU - Ortiz Lizcano, Juan Camilo
AU - Villa, Simona
AU - Zhou, Yilong
AU - Frantzi, Georgia
AU - Vattis, Kyriakos
AU - Calcabrini, Andres
AU - Yang, Guangtao
AU - Zeman, Miro
AU - Isabella, Olindo
PY - 2023
Y1 - 2023
N2 - Herein, the application of a comprehensive modeling framework that can help optimize the design of multilayered optical filters for coloring photovoltaic (PV) modules is presented based on crystalline silicon solar cells. To overcome technical issues related to the implementation of color filters (CFs) on PV modules, like glare and color instability, colorimetry metrics, such as the hue, chroma, luminance color space, and the quantitative concept of difference between two colors are extensively deployed. It is showcased in this work that designing colored modules with high hue and chroma stability is possible by using a front-side texturing with edged geometry, like V-shaped grooves and inverted pyramids, while obtaining colors with relatively high luminance values, indicating good brightness. Furthermore, it is argued that adapting the rear surface of the front glass with a random textured layout where the CF is applied can improve color and luminance stability without significant loss of chroma while eliminating glare. Finally, the models can be used to optimize the number of layers for a given CF, reducing unnecessary optical losses. Compared to a standard PV module, performance simulation of optimized, bright-colored PV modules predicts relative energy yield losses ranging from 7% to 25%.
AB - Herein, the application of a comprehensive modeling framework that can help optimize the design of multilayered optical filters for coloring photovoltaic (PV) modules is presented based on crystalline silicon solar cells. To overcome technical issues related to the implementation of color filters (CFs) on PV modules, like glare and color instability, colorimetry metrics, such as the hue, chroma, luminance color space, and the quantitative concept of difference between two colors are extensively deployed. It is showcased in this work that designing colored modules with high hue and chroma stability is possible by using a front-side texturing with edged geometry, like V-shaped grooves and inverted pyramids, while obtaining colors with relatively high luminance values, indicating good brightness. Furthermore, it is argued that adapting the rear surface of the front glass with a random textured layout where the CF is applied can improve color and luminance stability without significant loss of chroma while eliminating glare. Finally, the models can be used to optimize the number of layers for a given CF, reducing unnecessary optical losses. Compared to a standard PV module, performance simulation of optimized, bright-colored PV modules predicts relative energy yield losses ranging from 7% to 25%.
KW - colors
KW - design
KW - integration
KW - performance
KW - photovoltaics
UR - http://www.scopus.com/inward/record.url?scp=85166244866&partnerID=8YFLogxK
U2 - 10.1002/solr.202300256
DO - 10.1002/solr.202300256
M3 - Article
AN - SCOPUS:85166244866
SN - 2367-198X
VL - 7
JO - Solar RRL
JF - Solar RRL
IS - 19
M1 - 2300256
ER -