Synthesis and characterization of amino-functional, blue light-emitting copolymers and their composites with CdTe nanocrystals |
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| Authors: | Ioannis Kanelidis,Monique Bö tzer,Vladimir Lesnyak,Elisabeth Holder |
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| Affiliation: | a Functional Polymers Group and Institute of Polymer Technology, University of Wuppertal, Gaußstrasse 20, D-42097 Wuppertal, Germany
b Physical Chemistry/Electrochemistry, TU Dresden, Bergstrasse 66b, D-01062 Dresden, Germany |
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| Abstract: | Random side-chain functionalized copolymers were synthesized, utilizing a facile Yamamoto protocol by applying 2,7-dibromo-9,9-bis(6-bromohexyl)-9H-fluorene, (E)-1,2-bis(4-bromophenyl)ethene, 2,7-dibromo-9,9-dioctyl-9H-fluorene as comonomers. The precursor copolymers were post-functionalized utilizing di-n-propylamine and the resulting target copolymers were fully characterized. The optical classification parameters have been determined in solutions and in thin films as well. The copolymers revealed blue light emission, wide optical bandgaps Egopt of at least 2.84 eV and remarkable quantum yields up to 0.78 in chloroform solutions. The amino-functional copolymers allowed tying semiconductor CdTe nanocrystals. |
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| Keywords: | Conjugated copolymers synthesis Photoluminescence Nanocrystal-copolymer composites |
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