Optical-limiting-based materials of mono-functional, multi-functional   and supramolecular C60-containing polymers
  By using nanosecond laser pulses at 532-nm wavelength, we have intensively studied the optical limiting and nonlinear optical properties of some new composites which consist of mono-functional 1,2-dihydro-1,2-methanofullerene[60]-61-carboxylic acid (FCA), multifunctional fullerenol, and supramolecular C60(HNC4H8NCH3)9 - containing polymers. The optical limiting performance of FCA/poly(styrene-co-4-vinylpyridine) is found to be better than that of its parent C60, while the multi-functional Fullerenol and supramolecular C60(HNC4H8NCH3)9 incorporated with polymers show poorer optical limiting responses. The possible sources for the improvement in the optical limiting are discussed. 
Hendry Izaac Elim, Jianying Ouyang, Suat Hong Goh, and Wei Ji