Next Article in Journal
Fault Diagnosis of Rotating Machinery Based on an Adaptive Ensemble Empirical Mode Decomposition
Previous Article in Journal
Design and Implementation of a Smart LED Lighting System Using a Self Adaptive Weighted Data Fusion Algorithm
Article Menu

Export Article

Open AccessArticle
Sensors 2013, 13(12), 16940-16949;

InN Based Water Condensation Sensors on Glass and Flexible Plastic Substrates

Honeywell Romania S.R.L, Sensors & Wireless Laboratory Bucharest, Calea Floreasca 169A, Building A, Bucharest 014459, Romania
National Institute of Materials Physics, Atomistilor 105 bis, Magurele 077125, Romania
Petroleum-Gas University of Ploiesti, Blvd. Bucuresti no 39, Ploieşti 100680, Romania
Author to whom correspondence should be addressed.
Received: 30 September 2013 / Revised: 7 November 2013 / Accepted: 14 November 2013 / Published: 6 December 2013
(This article belongs to the Section Physical Sensors)
Full-Text   |   PDF [1031 KB, uploaded 21 June 2014]   |  


In this paper, we report the realization and characterization of a condensation sensor based on indium nitride (InN) layers deposited by magnetron sputtering on glass and flexible plastic substrates, having fast response and using potentially low cost fabrication technology. The InN devices work as open gate thin film sensitive transistors. Condensed water droplets, formed on the open gate region of the sensors, deplete the electron accumulation layer on the surface of InN film, thus decreasing the current of the sensor. The current increases back to its initial value when water droplets evaporate from the exposed InN film surface. The response time is as low as 2 s. View Full-Text
Keywords: III-nitride; indium nitride; condensation sensor; surface accumulation layer III-nitride; indium nitride; condensation sensor; surface accumulation layer

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Dumitru, V.; Costea, S.; Brezeanu, M.; Stan, G.E.; Besleaga, C.; Galca, A.C.; Ionescu, G.; Ionescu, O. InN Based Water Condensation Sensors on Glass and Flexible Plastic Substrates. Sensors 2013, 13, 16940-16949.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top