Electronic and Transport Properties of Quasi-1D Wires of Biological Molecules

In the search for organic materials with good charge-transport properties, artificial stacks of biological molecules are considered attractive candidates [1,2]. In this spirit, we present ab-initio DFT calculations of the structural, electronic, and quantum-transport properties of quasi-1D wires based on guanine and eumelanin molecules [3]. Hereby, a special focus is put on the results for the electronic bandwidths and the consequences for potential applications. \\[4pt] [1] R. di Felice et al., Phys. Rev. B 65, 045104 (2001) \\[0pt] [2] P. Meredith et al., Pigment Cell Res. 19, 572 (2006) \\[0pt] [3] B. Oetzel et al. (unpublished)