@misc{BroserFalterŁawrowskietal., author = {Broser, Christian and Falter, Thomas and Ławrowski, Robert Damian and Altenbuchner, Amelie and V{\"o}gele, Daniel and Koss, Claus and Schlampp, Matthias and Dunnweber, Jan and Steffens, Oliver and Heckner, Markus and Jaritz, Sabine and Schiegl, Thomas and Corsten, Sabine and Lauer, Norina and Guertler, Katherine and Koenig, Eric and Haug, Sonja and Huber, Dominik and Birkenmaier, Clemens and Krenkel, Lars and Wagner, Thomas and Justus, Xenia and Saßmannshausen, Sean Patrick and Kleine, Nadine and Weber, Karsten and Braun, Carina N. and Giacoppo, Giuliano and Heinrich, Michael and Just, Tobias and Schreck, Thomas and Schnabl, Andreas and Gilmore, Amador T{\´e}ran and Roeslin, Samuel and Schmid, Sandra and Wellnitz, Felix and Malz, Sebastian and Maurial, Andreas and Hauser, Florian and Mottok, J{\"u}rgen and Klettke, Meike and Scherzinger, Stefanie and St{\"o}rl, Uta and Heckner, Markus and Bazo, Alexander and Wolff, Christian and Kopper, Andreas and Westner, Markus and Pongratz, Christian and Ehrlich, Ingo and Briem, Ulrich and Hederer, Sebastian and Wagner, Marcus and Schillinger, Moritz and G{\"o}rlach, Julien and Hierl, Stefan and Siegl, Marco and Langer, Christoph and Hausladen, Matthias and Schreiner, Rupert and Haslbeck, Matthias and Kreuzer, Reinhard and Br{\"u}ckl, Oliver and Dawoud, Belal and Rabl, Hans-Peter and Gamisch, Bernd and Schmidt, Ottfried and Heberl, Michael and G{\"a}nsbauer, Bianca and Bick, Werner and Ellermeier, Andreas and Monkman, Gareth J. and Prem, Nina and Sindersberger, Dirk and Tschurtschenthaler, Karl and Aurbach, Maximilian and Dendorfer, Sebastian and Betz, Michael A. and Szecsey, Tamara and Mauerer, Wolfgang and Murr, Florian}, title = {Forschung 2018}, editor = {Baier, Wolfgang}, address = {Regensburg}, organization = {Ostbayerische Technische Hochschule Regensburg}, isbn = {978-3-9818209-5-9}, doi = {10.35096/othr/pub-1382}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-13826}, pages = {98}, subject = {Forschung}, language = {de} } @incollection{BetzLechner, author = {Betz, Michael A. and Lechner, Alfred}, title = {Sprayganik - Spraytool f{\"u}r organische Halbleiter}, series = {7. MikroSystemTechnik Kongress "MEMS, Mikroelektronik, Systeme", 23.-25. Oktober 2017, M{\"u}nchen}, booktitle = {7. MikroSystemTechnik Kongress "MEMS, Mikroelektronik, Systeme", 23.-25. Oktober 2017, M{\"u}nchen}, publisher = {VDE-Verlag}, address = {M{\"u}nchen}, isbn = {978-3-8007-4491-6}, pages = {747 -- 750}, abstract = {Spr{\"u}hbeschichtung stellt einen kosteng{\"u}nstigen und materialeffizienten aber komplexen Prozess dar. Um diese Vorteile f{\"u}r die Abscheidung teurer organischer Halbleiter zu nutzen, wurde ein Spr{\"u}hbeschichter entwickelt, der neueste Anforderungen an den Prozess erf{\"u}llt. Zudem konnten selbstansaugende Mikrospr{\"u}hd{\"u}sen mikrotechnologisch in Silizium realisiert werden, welche bereits eine bis zu vierfache Materialeffizienz im Vergleich zu herk{\"o}mmlichen airbrush-D{\"u}sen nachweisen konnten. Die neueste D{\"u}sengeneration zeigt nun eine weiter verbesserte Zerst{\"a}ubung, was bei gespr{\"u}hten OPDs zu einer reduzierten Dunkelstromdichte von 9,1×10-6 mA·cm-2 (-5 V) und erh{\"o}hten externen Quanteneffizienz von 78,5\% (530 nm, -5 V) f{\"u}hrt.}, language = {de} } @article{BetzBuecheleBruennleretal., author = {Betz, Michael A. and B{\"u}chele, Patric and Br{\"u}nnler, Manfred and Deml, Sonja and Lechner, Alfred}, title = {Silicon micro venturi nozzles for cost-efficient spray coating of thin organic P3HT/PCBM layers}, series = {Journal of micromechanics and microengineering}, volume = {27}, journal = {Journal of micromechanics and microengineering}, number = {1}, publisher = {IOP Publishing}, doi = {10.1088/0960-1317/27/1/015019}, abstract = {Improvements on spray coating are of particular interest to different fields of technology as it is a scalable deposition method and processing from solutions offer various application possibilities outside of typical facilities. When it comes to the deposition of expensive and film-forming media such as organic semiconductors, consumption and nozzle cleaning issues are of particular importance. We demonstrate the simple steps to design and fabricate micro venturi nozzles for economical spray coating with a consumption as low as 30-50 mu l.min(-1). For spray coating an active area of 25 cm(2) a 2.45-4.01 fold coating efficiency is observed compared to a conventional airbrush nozzle set. The electrical characterization of first diodes sprayed with an active layer thickness of similar to 750 nm using a single micronozzle at a coating speed of 1.7 cm(2).min(-1) reveals a good external quantum efficiency of 72.9\% at 532 nm and a dark current of similar to 7.4.10(-5) mA.cm(-2), both measured at -2 V. Furthermore, the high resistance of the micronozzles against solvents and most acids is provided through realization in a silicon wafer with silicon dioxide encapsulation, therefore allowing easy and effective cleaning.}, language = {en} }