000169934 001__ 169934
000169934 005__ 20190316235226.0
000169934 020__ $$a978-2-8399-0906-8
000169934 037__ $$aCONF
000169934 245__ $$aAir cooling powered by façade integrated coloured opaque solar thermal panels
000169934 269__ $$a2011
000169934 260__ $$bEPFL$$c2011$$aLausanne
000169934 336__ $$aConference Papers
000169934 520__ $$aFor building integration of solar-powered energy systems, aesthetic aspects play an importantrole. Covering a standard solar collector with a coloured glazing, opaque to the human eye but highly transparent to solar energy, permits a perfect architectural integration of solar thermal panels into glazed building façades. The thermal energy produced can be used for both solar heating and cooling, as well as for domestic hot water. The principle of the coloured appearance is based on interference in the thin-film coating on the reverse side of the cover glass. Different interference filters based on nano-composite materials deposited by the solgel method were presented at CISBAT 2007 [1]. Currently, we are developing new plasma-deposition processes, which are more suitable for industrial large-scale production. A new state-of-the-art ultra-high vacuum (UHV) system for magnetron sputtering deposition of novel nano-composite solar coatings has recently been designed, constructed, and installed at the Solar Energy and Building Physics Laboratory (LESO-PB). Up to five different magnetron sources can be used simultaneously, in reactive and non-reactive mode. The geometric configuration of the chamber has been optimised for best film homogeneity and allows the deposition on substrates up to 100 mm in diameter. The optical and electronic properties of thin films are closely interrelated and highly relevant for solar coatings. Photoelectron spectroscopy provides information on the coating structure, the deposited material and its chemical state inside the coating, as well as the nature of the interface between different layers. A system for ESCA analysis (Electron Spectroscopy for Chemical Analysis) has recently been installed and put into operation at LESO-PB. By ellipsometry and spectrophotometry, we can determine exactly the different optical properties of the coating, such as layer thickness, refractive index, or absorption coefficient. This provides best conditions for highly efficient research and development on new materials for further optimisation of the coloured interference filters.First results have been obtained with our new experimental infrastructure and will be presented in this contribution.
000169934 700__ $$aMack, Iris
000169934 700__ $$0242620$$g192272$$aMertin, Stefan
000169934 700__ $$aLe Caër, Virginie
000169934 700__ $$g146273$$aSchueler, Andreas$$0241357
000169934 700__ $$aDucommun, Yves
000169934 7112_ $$dSeptember 14-16, 2011$$cLausanne, Switzerland$$aCISBAT 2011
000169934 773__ $$tProceedings CISBAT 2011$$q317-322
000169934 8564_ $$uhttps://infoscience.epfl.ch/record/169934/files/Mack_et_al_CISBAT_2011_proceedings.pdf$$zPublisher's version$$s585548$$yPublisher's version
000169934 909C0 $$xU10262$$0252072$$pLESO-PB
000169934 909CO $$qGLOBAL_SET$$pconf$$ooai:infoscience.tind.io:169934$$pENAC
000169934 917Z8 $$x105599
000169934 917Z8 $$x106442
000169934 917Z8 $$x192272
000169934 917Z8 $$x192272
000169934 917Z8 $$x192272
000169934 937__ $$aEPFL-CONF-169934
000169934 973__ $$rNON-REVIEWED$$sPUBLISHED$$aEPFL
000169934 980__ $$aCONF