TY  - JOUR
A1  - von Seggern, David
A1  - Modrakowski, Claudia
A1  - Spitz, Christian
A1  - Schlüter, A. D.
A1  - Menzel, Ralf
T1  - Charge transfer initiated by optical excitation in diester substituted biphenylpyrene as a function of the solvent characterized by excited state absorption spectroscopy
N2  - Cross-sections for ground and excited state absorptions of the charge transfer system 3-(3-tert- butoxycarbonylamino-propyl)-4'-pyren-1-yl-biphenyl-2,5-dicarbo xylicacid dimethyl ester (Py-C) are determined from nonlinear absorption and fluorescence measurements as a function of solvent. While in non-polar solvents no stable charge transfer (CT) state occurs after optical excitation, in polar solvents the CT state is stabilized. (C) 2004 Elsevier B.V. All rights reserved
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Tedeschi, Concetta
A1  - Li, L.
A1  - Möhwald, Helmuth
A1  - Spitz, Christian
A1  - von Seggern, David
A1  - Menzel, Ralf
A1  - Kirstein, Stefan
T1  - Engineering of layer-by-layer coated capsules with the prospect of materials for efficient and directed electron transfer
N2  - We show a Lefschetz fixed point formula for holomorphic functions in a bounded domain D with smooth boundary in the complex plane. To introduce the Lefschetz number for a holomorphic map of D, we make use of the Bergman kernel of this domain. The Lefschetz number is proved to be the sum of the usual contributions of fixed points of the map in D and contributions of boundary fixed points, these latter being different for attracting and repulsing fixed points
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Spitz, Christian
A1  - von Seggern, David
A1  - Grunwaldt, Gisela
A1  - Menzel, Ralf
T1  - Biochemical Diagnostics by Excited State Absorption Spectroscopy
Y1  - 2002
SN  - 0-8194-4365-4
ER  - 
TY  - JOUR
A1  - Li, L.
A1  - Möhwald, Helmuth
A1  - Spitz, Christian
A1  - von Seggern, David
A1  - Mucke, M.
A1  - Menzel, Ralf
T1  - Long-lived photoinduced charge separation inside polarity gradient capsules
Y1  - 2005
ER  -