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Synthesis and characterization of amino-functional, blue light-emitting copolymers and their composites with CdTe nanocrystals

✍ Scribed by Ioannis Kanelidis; Victoria Elsner; Monique Bötzer; Maren Butz; Vladimir Lesnyak; Alexander Eychmüller; Elisabeth Holder

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
336 KB
Volume
51
Category
Article
ISSN
0032-3861

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✦ Synopsis

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 Eg opt 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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