Objective Objective of the work: To assess the potential of thin-film photovoltaic devices as window material for buildings. To develop testing methodologies which maintain the leading position of ESTI in PV technology qualification. Based on a market survey, 2 technologies were identified as possible window material, one being conventional, large area thin film deposition, the other a double glass thermal insulation sandwich, the front glass serving as substrate for the thin film deposition. Spectral response and reflectivity measurements on industry samples proved that the transparence and appearance of the window can be controlled by the thickness of the i-layer (insulating silicon between the p and n doped layer). Samples are being measured with respect to establishing the best compromise between transparency and photovoltaic efficiency.The work foreseen will be: Spectrophotometric and spectral response measurements on small-scale industry samples. These measurements should provide sufficient data for modelling the efficiency balance of the photovoltaic window and the design of large-area window samples. The measurements will be extended to a recent technology which adjusts transparency by means of laser-cutted micro-holes. Test of large-area samples with respect to a failure mechanisms due to condensation of humidity. These tests are a necessary requirement for a decision upon the rear protective cover. The scope is to decide whether the rear Transparent-Conductive-Oxide (TCO) provides sufficient protection to moisture penetration. Implementation of a performance evaluation test for the double-glass design, which allows to increase total efficiency by extracting heat from within the glass sandwich. Measurement runs in reference environments for both types of technologies. Test specifications for use as building material. Successful completion of the work allows implementation of test methodologies in the frame of third party work. Programme(s) JRC-EXPLORES 2C - Specific research programmes (EEC) to be implemented by the Joint Research Centre - Exploratory research -, 1992-1994 Topic(s) Data not available Call for proposal Data not available Funding Scheme Data not available Coordinator Joint Research Centre (JRC) EU contribution No data Address 21020 Ispra Italy See on map Total cost No data
