화학공학소재연구정보센터
Advanced Materials, Vol.22, No.36, 4064-4070, 2010
Alkali Metal Doped Organic Molecules on Insulators: Charge Impact on the Optical Properties
Doping-induced absorption changes of organic molecules on an insulating solid are reported. The charge transfer between alkali metal atoms and individual molecules on a surface leads to new electronic transitions identified with optical absorption spectroscopy. Progressive doping allows the discrimination of neutral, monoanionic, and dianionic molecules in the solid state through examination of the spectra and rate equation modeling.