Fluorene-based conjugated oligomer

Fluorene-Based Conjugated Oligomers for Organic Photonics and Electronics... 

Abstract Recent advances in fluorene-based conjugated oligomers are surveyed, including molecular design, material synthesis and characterization, and potential application to organic photonics and electronics, such as light-emitting diodes, solid-state lasers, field effect transistors, and solar cells. 

Fluorene is a common polycyclic aromatic hydrocarbon found even in engine exhaust (see Fig. 1 for its structure). Fluorene has long been known for the intense violet fluorescence, after which it was named [1]. Fluorene-based conjugated oligomers can emit deep blue light at an efficiency of up to 99% in solution and 90% in neat solid films [2], which is rare in this spectral region. 

This review focuses on the synthesis, characterization, and performance of monodisperse fluorene-based conjugated oligomers with potential applications to organic electronics and photonics. Included herein are oligomers and co-oligomers that contain at least two fluorene units in their backbone structures, while excluding those with a lone spirofluorene unit without other fluorene units in the backbone, as these have been covered elsewhere [42,43]. 

J.U. Wallace, S.H. Chen, Fluorene-based conjugated oligomers for organic photonics and electronics. Adv. Polym. Sci. 212, 145-186 (2008)... 

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