Chiral conducting polymers (CCPs)1 have been widely employed in enantio-selectivity, electrochemical asymmetric synthesis and optoelectronic devices. In the present work we investigated the spin selective electron transport through a chiral conducting polymer when deposited on ferromagnetic nickel. The spin selectivity observed result from the chiral induced spin selectivity (CISS) effect reported recently.2 This effect results in spin selective electron conduction through chiral molecules and the preferred spin depends on the handedness of the molecules and the applied electric field. In addition, enantioselectivity of the modified electrode was observed in presence of chiral redox probes. The combination of the CISS effect and the conductivity of the polymer allow, in principle, the production of spin-OLED3 that does not require any ferromagnetic material. References 1. Kane-Maguire, L. A. P.; Wallace, G. G. Chem. Soc. Rev., 2010, 39, 2545-2576. 2. Naaman, R.; Waldeck, D.H. J. Phys. Chem. Lett., 2012, 3, 2178−2187. 3. Nguyen, T. D.; Ehrenfreund, E.; Vardeny, Z. V. Science, 2012, 337, 204-209.

Chiral conducting polymers as efficient spin filters

249th National Meeting (2015)

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