Self-Organization of CdS Nanoparticles in Polystyrene Film
LIANG Hai-Chun1, XIANG Hong2, RONG Min-Zhi1, ZHANG Ming-Qiu1, ZENG Han-Min1, WANG Shu-Feng2, GONG Qi-Huang2
1Materials Science Institute, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Zhongshan University, Guangzhou 510275
2State Key Laboratory for Mesophysics, Peking University, Beijing 100871
Self-Organization of CdS Nanoparticles in Polystyrene Film
1Materials Science Institute, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Zhongshan University, Guangzhou 510275
2State Key Laboratory for Mesophysics, Peking University, Beijing 100871
Abstract： Self-organization of nano-CdS particles in polystyrene can be observed by encapsulating the particles with n-dodecyl mercaptan owing to a strong electron transfer interaction between the modified CdS nanoparticles and aliphatic carbons in polystyrene. Consequently, ultraviolet/visible absorption edge of the treated nano-CdS/polystyrene composites is further blue-shifted in addition to the shift caused by quantum size effect, and the fluorescence emission peak of the composite becomes red-shifted and narrow.
2002, Vol. 19 
