The use of a luminescent solar concentrator (LSC) with a high geometric gain is one of the methods to achieve low cost of photovoltaic power However the self-absorption loss of the LSC is a restraining factor working against the gain Differed from organic dyes, the hybrid dyes (rare earth complexes), composed of organic antenna and inorganic emitting ions have very low self-absorption losses A hybrid solar concentrator (HSC) has been fabricated by doping a rare earth complex, Eu(TTA)(3)Phen, into a polymer optical fiber (POF) Experiments on the HSC show that there is no self absorption loss, and the emission photons increase linearly with geometric gain (increasing from around 50 to approximately 200) (C) 2010 Elsevier Ltd All rights reserved