Insights on Capacitive Interdigitated Electrodes Coated with MOF Thin Films: Humidity and VOCs Sensing as a Case Study

Christos Sapsanis, Hesham Omran, Valeriya Chernikova, Osama Shekhah, Youssef Belmabkhout, Ulrich Buttner, Mohamed Eddaoudi, Khaled N. Salama

Research output: Contribution to journalArticlepeer-review

86 Scopus citations

Abstract

A prototypical metal-organic framework (MOF), a 2D periodic porous structure based on the assembly of copper ions and benzene dicarboxylate (bdc) ligands (Cu(bdc)·xH2O), was grown successfully as a thin film on interdigitated electrodes (IDEs). IDEs have been used for achieving planar CMOS-compatible low-cost capacitive sensing structures for the detection of humidity and volatile organic compounds (VOCs). Accordingly, the resultant IDEs coated with the Cu(bdc)·xH2O thin film was evaluated, for the first time, as a capacitive sensor for gas sensing applications. A fully automated setup, using LabVIEW interfaces to experiment conduction and data acquisition, was developed in order to measure the associated gas sensing performance.
Original languageEnglish (US)
Pages (from-to)18153-18166
Number of pages14
JournalSensors
Volume15
Issue number8
DOIs
StatePublished - Jul 24 2015

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