Materials-related aspects of high-transparency solar window design. (a) Example types of inorganic luminophore chemistries potentially suitable for developing solar window devices; (b) photoluminescent emissions spectra of different functional materials embedded into extruded polyvinylbutyral (PVB) sheets measured by our cooperation partners at the University of Melbourne; (c) luminescent material selection criteria applicable to the design of luminescent solar concentrators; (d) high-transparency laminated glass samples linked by prototype fluorescent PVB interlayers demonstrating the visible component of fluorescent emissions concentrated at glass edge; (e) glass concentrator samples laminated using fluorescent PVB, shown under UV irradiation and also in comparison with a glass sample laminated using conventional PVB.