TY - GEN A1 - Henkel, Karsten A1 - Oprea, A. A1 - Paloumpa, Ioanna A1 - Appel, Günter A1 - Schmeißer, Dieter A1 - Kamieth, P. T1 - Selective polypyrrole electrodes for quartz microbalances : NO2 and gas flux sensitivities T2 - Sensors and Actuators : B, Chemical 76(2001)1-3 Y1 - 2001 SN - 0925-4005 VL - 76 IS - 1-3 SP - 124 EP - 129 ER - TY - RPRT A1 - Henkel, Karsten A1 - Paloumpa, Ioanna A1 - Oprea, A. A1 - Appel, Günter A1 - Schmeißer, Dieter A1 - Frandsen, W. A1 - Schölzel, Mario T1 - Entwicklung von Sensoren mit Elektroden aus leitfähigen Polymeren Y1 - 2000 N1 - Teilbericht 16SV335/7 im Gemeinsamen Abschlussbericht zum Verbundprojekt "Sensoren mit mikrostrukturierten Elektroden aus leitfähigen Polymeren", März 2000, Kurzfassung ER - TY - GEN A1 - Gürek, A. G. A1 - Appel, Günter A1 - Mikalo, Ricardo Pablo A1 - Schmeißer, Dieter T1 - Synthesis of dihydroxy silicon phthalocyanine tetrasulfonic acid and poly-µ-oxo silicon phthalocyanine tetrasulfonic acid T2 - Journal of Porphyrins and Phthalocyanines Y1 - 2001 SN - 1099-1409 SN - 1088-4246 VL - 5 IS - 10 SP - 751 EP - 757 ER - TY - JOUR A1 - Oprea, A. A1 - Henkel, Karsten A1 - Oehmgen, R. A1 - Appel, Günter A1 - Schmeißer, Dieter A1 - Lauer, H. A1 - Hausmann, P. T1 - Increased sensor sensitivities obtained by polymer coated quartz microbalances Y1 - 1999 ER - TY - GEN A1 - Appel, Günter A1 - Ade, H. A1 - Gürek, A. G. A1 - Stadler, S. A1 - Mikalo, Ricardo Pablo A1 - Schmeißer, Dieter T1 - Orientation studies of Si-Phthalocyanines sulfonic acids cast on SiOx substrates T2 - Applied Physics / A N2 - Layers of dihydroxy silicon phthalocyanine tetrasulfonic acid and oligo-7-oxo silicon phthalocyanine tetrasulfonic acid were prepared by solution-casting methods. The purity of the material was checked by X-ray photoemission spectroscopy. The orientation of the molecules in respect to the substrate plane was investigated by angle-dependent near-edge X-ray absorption fine-structure spectroscopy. The morphology was characterized by atomic force microscopy. Most samples exhibited a significant orientation that was accompanied by crystalline structures; others had no orientation at all with a dominant amorphous morphology. This behavior indicates that several preparation parameters affect the crystallinity and the orientation of the phthalocyanines. Y1 - 2003 U6 - https://doi.org/10.1007/s003390201320 SN - 1432-0630 VL - 76 IS - 2 SP - 177 EP - 182 ER - TY - JOUR A1 - Appel, Günter A1 - Mikalo, Ricardo Pablo A1 - Henkel, Karsten A1 - Oprea, A. A1 - Yfantis, Alexandros D. A1 - Paloumpa, Ioanna A1 - Schmeißer, Dieter T1 - Polymeric Electrodes Y1 - 2000 ER - TY - GEN A1 - Lemmnitz, Christine A1 - Kuhnert, Matthias A1 - Bens, Oliver A1 - Günter, A. A1 - Merz, Bruno A1 - Hüttl, Reinhard F. T1 - Spatial and temporal variations of actual soil water repellency and their influence on surface runoff T2 - Hydrological Processes Y1 - 2008 U6 - https://doi.org/10.1002/hyp.6782 SN - 1099-1085 VL - 22 IS - 12 SP - 1976 EP - 1984 ER -