| Autor: |
N. F. de Rooij, Francisco Molina-Lopez, Danick Briand |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Procedia Engineering. 47:1173-1176 |
| ISSN: |
1877-7058 |
| DOI: |
10.1016/j.proeng.2012.09.360 |
| Popis: |
A new fabrication strategy is proposed to reduce the size of sensors based on inkjet-printed interdigitated electrodes (IDE). The process is compatible with fabrication at low temperature and can be applied to flexible organic foils. The new fabrication concept consists of the deposition of a thin dielectric layer of parylene-C onto the first electrodes comb prior to the printing of the second one. In this way, the combs are not longer on the same plane, preventing undesired short-circuits and solving the typical problems of definition and yield associated to inkjet printing of IDE devices with small pitch. The proposed strategy results especially relevant for capacitive-based devices, where short-circuits render the device non-functional. Moreover, it permits enhancing their capacitance per surface area. The validation of the exposed process for sensors application has been carried out by functionalizing the IDE structure with a humidity sensing layer, and characterizing the resulting sensor against changes in relative humidity (R.H.). (C) 2012 Elsevier Ltd .... Selection and/or peer-review under responsibility of the Symposium Cracoviense Sp. z.o.o. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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