Since the discovery of metallic conductivity in doped polyacetylene (HC=CH)n in 1977 by
Heeger, Shirakawa and MacDiamid, conjugated polymers (CPs) become an important category of
materials and enjoy a worldwide popularity for many years [1]. CPs have been found to possess
distinguished photophysical, electrochemical and magnetic properties. The delocalized electrons
migrating along the conjugated backbones result in amplification of fluorescence signals and
consequent excellent performance in organic photoluminescence (PL) [2] or electroluminescence
devices [3].These discoveries not only lead to the springing of new functional materials, but also
inspire chemists to develop versatile synthetic methodology.