White light-emitting nanocomposites based on an oxadiazole–carbazole copolymer (POC) and InP/ZnS quantum dots
作者： Annalisa Bruno , Carmela Borriello , Tiziana Di Luccio , Giuseppe Nenna , Lucia Sessa
DOI: 10.1007/S11051-013-2085-4
关键词: OLED 、 Materials science 、 Optoelectronics 、 Light emission 、 Visible spectrum 、 Emission spectrum 、 Carbazole 、 Quantum dot 、 Photoluminescence 、 Oxadiazole
摘要: In this work, we studied energetic and optical proprieties of a polyester-containing oxadiazole carbazole units that will indicate as POC. This polymer is characterized by high photoluminescence activity in the blue region visible spectrum, making it suitable for development efficient white-emitting organic light emission devices. Moreover, POC has been combined with two red emitters InP/ZnS quantum dots (QDs) to obtain nanocomposites wide spectra. The types QDs have different absorption wavelengths: 570 nm [InP/ZnS(570)] 627 nm [InP/ZnS(627)] were inserted at concentrations. properties investigated compared ones pure polymer. Both spectral time resolved fluorescence measurements show an energy transfer from QDs, resulting nanocomposites.
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