Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 129, Issue 1, Pages 35-39Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2007.07.064
Keywords
hydrogen sensor; dual-mode operation; Pd/AlN/SiC device; dual mode either as a rectifying diode or a capacitor
Ask authors/readers for more resources
The electrical response of a hydrogen-sensing device is either a rectifying diode-type or a capacitor-type but could not be operated simultaneously in both the modes. However, we are able to demonstrate that a Pd/AlN/SiC device can operate in dual mode either as a rectifying diode or a capacitor. The device with a 50 nm AlN layer shows a shift of similar to 0.35 V for 100 ppm H-2 in both the modes, at a temperature of 150 degrees C. It seems that the presence of donor levels in the bandgap, of the AlN layer with a wide range of energy is responsible for the observed electrical behavior of this device. (C) 2007 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available