CHARACTERIZATION OF C-60-BASED SOLID-ELECTROLYTE, AND COMPOSITIONAL DEPENDENCE OF THE HUMIDITY SENSING EFFECT

Bulk C-60-based solid electrolyte is shown to consist of two distinct compound fractions, hydrophobic and hydrophilic. Analysis of the fract ions by FT-IR and UV-Vis absorbance, and mass spectrometry, indicate t hey contain true fullerene derivatives such as alcohols, acids, and et hers. The separated components can be recombined in solution and spin coated into thin films, which display humidity sensitive conductivity. By varying the hydrophobic:hydrophilic content ratio, the humidity re sponse behavior of these films can be adjusted.