Koh Haeng-Deog, Lee Jung-Pil, Lee Jae-Suk
Department of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-gwagiro (Oryong-dong), Buk-gu, Gwangju 500-712, Korea.
Macromol Rapid Commun. 2009 Jun 17;30(12):976-80. doi: 10.1002/marc.200900036. Epub 2009 Apr 21.
CdS nanoparticles of 4.5 nm diameter were synthesized in poly(2-vinylpyridine) micellar cores which were obtained by solvating a polystyrene-block-poly(2-vinylpyridine) block copolymer in polystyrene-selective toluene. Then, a C(60) -toluene solution was dispersed into the CdS micelle solution with stirring. This led to the well-defined organization of two different nanoparticles; specifically: a CdS NP decorated by several/dozens of C(60) molecules, because C(60) molecules were strongly coordinated with pyridine molecules in the micellar cores by charge-transfer complexation C 60δ--P2VP(δ+) . A harmoniously organized CdS/C(60) micellar structure was clearly verified by transmission electron microscopy. Fluorescent quenching of CdS nanoparticles, which was strongly affected by neighboring C(60) molecules, was observed.
直径为4.5纳米的硫化镉纳米颗粒是在聚（2-乙烯基吡啶）胶束核中合成的，这些胶束核是通过将聚苯乙烯-嵌段-聚（2-乙烯基吡啶）嵌段共聚物溶解在对聚苯乙烯有选择性的甲苯中获得的。然后，在搅拌下将富勒烯（C60）-甲苯溶液分散到硫化镉胶束溶液中。这导致了两种不同纳米颗粒的明确组织；具体来说：一个硫化镉纳米颗粒被几个/几十个C60分子修饰，因为C60分子通过电荷转移络合C60δ--P2VP(δ+)与胶束核中的吡啶分子强烈配位。通过透射电子显微镜清楚地证实了一种组织和谐的硫化镉/C60胶束结构。观察到硫化镉纳米颗粒的荧光猝灭，这受到相邻C60分子的强烈影响。
