Nanofibers of Conjugated Polymers Prepared by Electrospinning with a Two-Capillary Spinneret


  • This work has been supported in part by an AFOSR-MURI grant on smart-skin materials awarded to the University of Washington, and a research fellowship (awarded to Y. X.) from the David and Lucile Packard Foundation. Y. X. is a Camille Dreyfus Teacher Scholar and an Alfred P. Sloan Research Fellow.


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Uniform nanofibers composed of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] and its blends with poly(3-hexylthiophene) are formed by co-electrospinning their solutions with poly(vinyl pyrrolidone) (PVP) through a coaxial capillary system, followed by extraction of the PVP phase (see Figure). Compared with spin-cast films, the fibers show reduced phase separation and improved energy-transfer efficiency.