The invention relates to a luminescent converter(101) that may for example be used as a luminescent solar concentrator(LSC) in a solar power generator(100). The luminescent converter(101) comprises magic-sized clusters (110), MSCs, of a luminescent material. Preferably, said luminescent material comprises a compound of two elements from groups IV and VI, for example PbSe. The MSCs(110) may be embedded in a transparent light guiding element(120) or be embedded in a thin film on a surface thereof.
