Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Günter Appel"'
Publikováno v:
Journal of Porphyrins and Phthalocyanines. :751-757
We describe the synthesis of tetrasulfonated silicon phthalocyanine and its oligomer product prepared by metal salt catalyzed polycondensation. The catalytic effect of H 2 O -free CaCl 2 in quinoline is used for the polycondensation of dihydroxy sili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95653cf949b705326702f9d348bbad4f
https://doi.org/10.1002/jpp.390
https://doi.org/10.1002/jpp.390
Publikováno v:
Sensors and Actuators B: Chemical. 76:124-129
Quartz microbalances were produced which have polypyrrole as a conductive polymer electrode. The polymer layers were operated as both electrode and sensitive material to detect the concentration of toxic gases. Tests with NO2 demonstrated detection l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99f6e8a4f6ab5aa6dc21f793fad4fe06
https://doi.org/10.1016/s0925-4005(01)00600-1
https://doi.org/10.1016/s0925-4005(01)00600-1
Autor:
Dieter Schmeißer, Thomas Heller, R. P. Mikalo, Günter Appel, O. Böhme, David Batchelor, Patrick Hoffmann
Publikováno v:
Sensors and Actuators B: Chemical. 70:131-138
The spectroscopic characterization of localized charges in thin film devices is addressed. We demonstrate their existence and show their particular contribution to the operation of sensor devices. Examples in oxidic and polymeric thin films systems a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad4a798ec72998831c7df99555d72c64
https://doi.org/10.1016/s0925-4005(00)00582-7
https://doi.org/10.1016/s0925-4005(00)00582-7
Publikováno v:
Materials Science and Engineering: C. :257-265
The photoemission electron microscope (PEEM) based techniques micro-near-edge X-ray absorption fine structure (μ-NEXAFS) and micro-photoelectron spectroscopy (μ-PES) have been recently installed at the BESSY-I HE-TGM beam lines as novel techniques
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c0c3925760c45abd9c746a57cdf6289
https://doi.org/10.1016/s0928-4931(99)00076-4
https://doi.org/10.1016/s0928-4931(99)00076-4
Publikováno v:
Materials Science and Engineering: C. :509-512
Polymer-coated quartz microbalances were produced and studied. They exhibited high sensitivities for heavy noncyclical hydrocarbons and CO 2 concentration measurements. Detection limit of 1 ppm CO 2 and 10 ppm Shellsol (Shell solvent containing: 28.7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0883b3d044c4c8bd1f2aa3497d0cccf
https://doi.org/10.1016/s0928-4931(99)00065-x
https://doi.org/10.1016/s0928-4931(99)00065-x
Publikováno v:
Chemical Physics Letters. 313:411-415
UPS and NEXAFS spectroscopy have been used to study the changes in the electronic structure of polypyrrole films by varying the dopant anion. In particular, we find the density of states within the electronic gap to be influenced by the chemical stru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b05c550bcb9473b436b2a44a3fee0159
https://doi.org/10.1016/s0009-2614(99)01102-1
https://doi.org/10.1016/s0009-2614(99)01102-1
Publikováno v:
Synthetic Metals. 106:187-196
Chemically produced polypyrrole powders doped with the fluoro-complexes fluoro-aluminates, fluoro-zirconates, fluoro-titanates and fluorides are synthesized and characterized by both XPS and four-probe conductivity measurements. The results show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00c04ef13f9b4a85fd6bada10dad69c7
https://doi.org/10.1016/s0379-6779(99)00140-x
https://doi.org/10.1016/s0379-6779(99)00140-x
Publikováno v:
Synthetic Metals. 83:197-200
We report on a method to deposit thin films of conductive polypyrrole powder on non-conductive substrates. This is a new method in contrast to the usual way of preparing polypyrrole films by anodic deposition on metal substrates. Polypyrrole tosylate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39cca2744ff2ba09b7ab5f6da12ddf4d
https://doi.org/10.1016/s0379-6779(97)80079-3
https://doi.org/10.1016/s0379-6779(97)80079-3
Autor:
Horst Becker, Hans-Günter Appel
Publikováno v:
International Journal of Materials Research. 54:724-728
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::148df29027198deea07f727dcc2e8006
https://doi.org/10.1515/ijmr-1963-541212
https://doi.org/10.1515/ijmr-1963-541212
Publikováno v:
Biomedizinische Technik/Biomedical Engineering. 34:242-243
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70ed77b1ecd73cd087df654576785c39
https://doi.org/10.1515/bmte.1989.34.s1.242
https://doi.org/10.1515/bmte.1989.34.s1.242