Optical and thermal spectroscopic studies of luminescent dye doped poly(methyl methacrylate) as solar concentrator

Abstract

A luminescent solar concentrator was prepared that was based on a bulk sheet of poly(methyl methacrylate) doped with different luminescent dyes (K1, K27, and Lpero) during the polymerization process. Photo-and thermal-stability studies revealed that the Lpero dye system is the most stable one. The electronic transition mechanism for the concentrator systems was obtained by the darktrap and phototrap spectroscopy technique. The results were correlated with the outdoor test measurements over 1 year.

A fast and effective procedure for the optical efficiency determination of luminescent solar concentrators

“…LR has been selected as reference as it is considered the state-of-the-art in dyes for LSC applications (Debije and Verbunt, 2012) and its use has been reported in many recent papers (Dienel et al, 2010;Sark et al, 2008;Griffini et al, 2013;Bakr et al, 1999). LR shows a quantum yield (QY) of about 1 even at high concentration (>1 mmol) in polymers and in the solid state (Al-Kaysi and Sang, 2006) and a good photostability (Reisfeld et al, 1994).…”

Direct versus indirect illumination of a prototype luminescent solar concentrator

“…Another positive feature is the capability of absorbing sunlight from both front and rear sides and the potential to function in diffuse light conditions. While the LSC is not a new concept, the device first being mentioned in the late 1970s (Weber and Lambe, 1976), there have been relatively few tests of the devices in real situations (Bakr et al, 1999;El-Shahawy and Mansour, 1996;Mansour et al, 2002;Pravettoni et al, 2009;Salem et al, 2000), almost exclusively having been confined to the laboratory settings and direct illumination from solar simulators. While there are statements that the LSC device performs well under diffuse illumination (Hernandez-Noyola et al, 2012;Reda, 2008;Vishwanathan et al, 2015), there are limited research efforts to verify this assertion (Aste et al, 2015;Desmet et al, 2012;Mansour, 1998;Mansour et al, 2002).…”

Effect of method of preparation and drying time on photophysical properties of coumarin 1 laser dye embedded in HCl catalysed sol–gel glasses

“…In recent years, more efforts have been devoted to incorporate organic laser dyes into various host matrices, with the goal of developing solid state dye laser materials [1][2][3][4][5][6][7][8][9][10][11][12][13][14] that could possibly replace liquid dye lasers. Compared with liquid dye lasers, solid state dye lasers have many advantages such as non-toxic, nonflammable, non-volatile, compact and better mechanically and thermally [1][2][3][4][5].…”

“…In this field, great progress has been made on the synthesis of highly photostable laser dyes and host matrices such as polymers or ORMOSILS, having technical advantages such as compactness, better manageability, high laser damage threshold and suitability for field measurement [3][4][5][6][7]. A number of solid polymeric matrices have been used in the past [6][7][8][9][10][11][12]. However polymeric host materials have been shown to be of less transmittance in the near UV region with poor mechanical and thermal properties [7,8].…”