[1] Univ Erlangen Nurnberg, Dept Chem & Pharm, D-91054 Erlangen, Germany
[2] Univ Erlangen Nurnberg, Interdisciplinary Ctr Mol Mat, D-91054 Erlangen, Germany
[3] Univ Erlangen Nurnberg, Inst Polymer Mat Organ Mat & Devices, D-91058 Erlangen, Germany
[4] Univ Erlangen Nurnberg, Comp Chem Ctr, D-91052 Erlangen, Germany