دورية أكاديمية
Fully Printed Flexible Chemiresistors with Tunable Selectivity Based on Gold Nanoparticles
| العنوان: | Fully Printed Flexible Chemiresistors with Tunable Selectivity Based on Gold Nanoparticles |
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| المؤلفون: | Ketelsen, Bendix, Tjarks, Patrick P., Schlicke, Hendrik, Liao, Ying-Chih, Vossmeyer, Tobias |
| سنة النشر: | 2020 |
| المجموعة: | Publikationsdatenbank der Fraunhofer-Gesellschaft |
| مصطلحات موضوعية: | sensor, Chemiresistor, gold, nanoparticle, Inkjet, dispenser, printing, flexible |
| الوقت: | 668 |
| الوصف: | Art. 116, 14 S. ; This study presents a method for printing flexible chemiresistors comprising thin film transducers based on cross-linked gold nanoparticles (GNPs). First, interdigitated silver paste electrodes are printed onto polyimide (PI) foil via dispenser printing. Second, coatings of GNPs and dithiol/monothiol blends are inkjet-printed onto these electrode structures. 1,9-Nonanedithiol (9DT) is used as cross-linking agent and a variety of monothiols are added to tune the sensors' chemical selectivity. When dosing these sensors with different analyte vapors (n-octane, toluene, 4-methyl-2-pentanone, 1-butanol, 1-propanol, ethanol, water; concentration range: 25-2000 ppm) they show fully reversible responses with short response and recovery times. The response isotherms follow a first-order Langmuir model, and their initial slopes reveal sensitivities of up to 4.5 × 10−5 ppm−1. Finally, it is demonstrated that arrays of printed sensors can be used to clearly discern analytes of different polarity. ; 8 ; Nr.4 |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | Chemosensors; https://publica.fraunhofer.de/handle/publica/265448Test |
| DOI: | 10.3390/chemosensors8040116 |
| الإتاحة: | https://doi.org/10.3390/chemosensors8040116Test https://publica.fraunhofer.de/handle/publica/265448Test |
| رقم الانضمام: | edsbas.FE541107 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3390/chemosensors8040116 |
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