Inorganic–organic nanocomposites of CdSe nanocrystals surface-modified with oligo- and poly(fluorene) moieties
Inorganic–organic nanocomposites of CdSe nanocrystals surface-modified with oligo- and poly(fluorene) moieties
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DOI：
10.1039/c0jm03546g
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发表时间：
2011-02
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通讯作者：
Iohannis Kanelidis;Aleksandar Vaneski;D. Lenkeit;S. Pelz;Victoria Elsner;R. M. Stewart;J. Rodríguez-Fernández;A. Lutich;A. Susha;R. Theissmann;S. Adamczyk;A. Rogach;E. Holder
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文献类型：
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作者：
Iohannis Kanelidis;Aleksandar Vaneski;D. Lenkeit;S. Pelz;Victoria Elsner;R. M. Stewart;J. Rodríguez-Fernández;A. Lutich;A. Susha;R. Theissmann;S. Adamczyk;A. Rogach;E. Holder
我们报告了一种合成半导体纳米晶体和宽带隙聚合物无机-有机复合材料的简便接枝策略。氨基芴已被用作 CdSe 纳米晶体的共配体，从而使我们能够在合成过程中直接设计其表面。获得了高度单分散、强发射的 CdSe 纳米晶体。随后，使用简单的 Yamamoto C-C 偶联方案进行表面聚合，从而用寡聚和聚（芴）部分修饰 CdSe 纳米晶体。氨基芴封端的 CdSe 纳米晶体和所得纳米晶体-聚合物复合材料均通过光学和 FT-IR 光谱、TEM、AFM 和凝胶渗透色谱进行了详细表征，显示了它们作为新型功能性无机-有机杂化材料的潜力。
We report a facile grafting-from strategy towards the synthesis of inorganic–organic composites of semiconductor nanocrystals and wide-bandgap polymers. Amino-functional fluorenes have been used as co-ligands for CdSe nanocrystals, thus enabling us to design their surface directly during the synthesis. Highly monodisperse, strongly emitting CdSe nanocrystals have been obtained. Subsequently, a straightforward Yamamoto C–C coupling protocol was used to carry out surface polymerisation, hence modifying CdSe nanocrystals with oligo- and poly(fluorene) moieties. Both amino-fluorene capped CdSe nanocrystals and the resulting nanocrystal–polymer composites were characterized in detail by optical and FT-IR spectroscopy, TEM, AFM, and gel permeation chromatography, showing their potential as novel functional inorganic–organic hybrid materials.