@article{WangBaeuscherHuetal., author = {Wang, Bei and Baeuscher, Manuel and Hu, Xiaodong and Woehrmann, Markus and Becker, Katharina and Juergensen, Nils and Hubl, Moritz and Mackowiak, Piotr and Schneider-Ramelow, Martin and Lang, Klaus-Dieter and Ngo, Ha-Duong}, title = {Development and Characterization of a Novel Low-Cost Water-Level and Water Quality Monitoring Sensor by Using Enhanced Screen Printing Technology with PEDOT:PSS}, series = {Micromachines}, volume = {11}, journal = {Micromachines}, number = {5}, publisher = {MDPI}, issn = {2072-666X}, doi = {10.3390/mi11050474}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:523-3789}, pages = {15}, abstract = {A novel capacitive sensor for measuring the water-level and monitoring the water quality has been developed in this work by using an enhanced screen printing technology. A commonly used environment-friendly conductive polymer poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) for conductive sensors has a limited conductivity due to its high sheet resistance. A physical treatment performed during the printing process has reduced the sheet resistance of printed PEDOT:PSS on polyethylenterephthalat (PET) substrate from 264.39 Ω/sq to 23.44 Ω/sq. The adhesion bonding force between printed PEDOT:PSS and the substrate PET is increased by using chemical treatment and tested using a newly designed adhesive peeling force test. Using the economical conductive ink PEDOT:PSS with this new physical treatment, our capacitive sensors are cost-efficient and have a sensitivity of up to 1.25 pF/mm.}, language = {en} }