All-inkjet-printed low-pass filters with adjustable cutoff frequency consisting of resistors,inductors and transistors for sensor applications |
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| Affiliation: | 1. Algoritmi Research Center, University of Minho, 4800-058, Guimarães, Portugal;2. Department/Center of Physics, University of Minho, 4710 - 057, Braga, Portugal;3. Digital Printing and Imaging Technology, Technische Universität Chemnitz, 09107, Chemnitz, Germany;4. Fraunhofer ENAS, Department Printed Functionalities, 09126, Chemnitz, Germany;5. BCMaterials, Parque Científico y Tecnológico de Bizkaia, 48160, Derio, Spain;6. IKERBASQUE, Basque Foundation for Science, 48013, Bilbao, Spain;1. Department of Electrical Engineering and Institute of Electronics Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan, ROC;2. Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan, ROC;3. Institute of Physics National Chiao Tung University, Hsinchu, 30010, Taiwan, ROC;1. Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans, 16, Tarragona E-43007, Spain;2. Universidad de Castilla-La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo, Spain;3. Department of Chemistry, University of Texas at El Paso, El Paso, TX 79968, USA;4. ICREA, Passeig Lluis Companys 23, Barcelona E-08010, Spain;1. VTT Technical Research Centre of Finland, Printed and Hybrid Functionalities, P.O. Box 1000, FI-02150 Espoo, Finland;2. VTT Technical Research Centre of Finland, Printed and Hybrid Functionalities, P.O. Box 1100, FI-90570 Oulu, Finland;3. BASF Schweiz AG, CH-4002 Basel, Switzerland;1. Department of Physics, National University of Singapore, Lower Kent Ridge Road, S117551, Singapore;2. Department of Chemistry, National University of Singapore, Lower Kent Ridge Road, S117543, Singapore;3. Department of Electrical and Computer Engineering, National University of Singapore, Lower Kent Ridge Road, S117576, Singapore;4. Solar Energy Research Institute of Singapore, National University of Singapore, Engineering Drive 1, S117574, Singapore;1. Technology Research Institute of Osaka, 2-7-1 Ayumino, Izumi, Osaka 594-1157, Japan;2. The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan;1. National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People''s Republic of China;2. Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge, CB3 0FA, United Kingdom |
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| Abstract: | Low-cost and flexible first and second order low-pass filters with adjustable cutoff frequency were designed and printed by inkjet printing technology. The all-inkjet-printed low-pass filters were characterized and an adjustable cutoff frequency feature in form of an inkjet-printed organic thin-film transistors (OTFTs) was added to the filters for application-oriented fine-tuning. The applicability of these small circuits was evaluated by signal filtering for sensor applications. As a result, low-pass filters with an adjustable cutoff frequency ranging from 82 Hz to 740 Hz were obtained, demonstrating their suitability in signal filtering and their promising applicability for tactile sensing characterized by low frequency signals. |
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| Keywords: | Low-pass filters Organic thin-film transistors Printed electronics Inkjet-printing |
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