Well-Organized CdS/C60 in Block Copolymer Micellar Cores

✍ Scribed by Haeng-Deog Koh; Jung-Pil Lee; Jae-Suk Lee

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 639 KB
• Volume: 30
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200900036

✦ Synopsis

Abstract

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–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.

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