During the last years, the photophysical properties of complexes based on organic and inorganic fluorophores have attracted increasing interest. The development of different assemblies, for instance, based on quantum dots (QDs) and organic dyes, allow to produce materials with different applications, including imaging, biological sensing and electronic devices [1]. Some studies have demonstrated the occurrence of energy transfer in fluorophore pairs based on QDs with different emission wavelengths or QDs and organic dyes [2]. However, for electronic devices purposes the polymeric matrix should enhance QDs’ photostability. Nevertheless, the polymeric material should be able to retain the QDs on its surface, which can be achieved by the presence of electronic charges at the polymer surface. Herein, we present the development of hybrid materials based on different polymer matrices, including polycarbonate (PC), polymethylmethacrylate (PMMA) and PMMA-g-2-mercaptoethylamine (PMMA-g-MEA). Different fluorophores pairs (QD/QD or QD/organic dye) were combined with the different polymer matrices. The resulting hybrid materials allowed to evaluate the effect of the distance between the fluorophores on the efficiency of the energy transfer. References 1. Gromova Y, Orlova A, Maslov V, Fedorov A and Baronov A “Fluorescence energy transfer in quantum dot/azo dye complexes in polymer track membranes” Nanoscale Research Letters, 2013, Vol. 8, p. 452. 2. Gorbatsevich S, Kaputskaya Y, Artemyev M, Nabiev I, Strekal N and Maskevich S “Fluorescence of CdSe/ZnS quantum dots in solid solutions in the presence of organic molecules dodci” J Luminescence 2004, Vol. 110, p.23.