Evaluation of Porous Silicon Oxide on Silicon Microcantilevers for Sensitive Detection of Gaseous HF

Ryan A. Wallace, Michael J. Sepaniak, Nickolay V. Lavrik, Panos G. Datskos

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Sensitive detection of harmful chemicals in industrial applications is pertinent to safety. In this work, we demonstrate the use of a sensitive silicon microcantilever (MC) system with a porous silicon oxide layer deposited on the active side of the MCs that have been mechanically manipulated to increase sensitivity. Included is the evaluation of porous silicon oxide present on different geometries of MCs and exposed to varying concentrations of hydrogen fluoride in humid air. Profilometry and the signal generated by the stress-induced porous silicon oxide (PSO) coating and bending of the MC were used as methods of evaluation.

Original languageEnglish
Pages (from-to)6272-6276
Number of pages5
JournalAnalytical Chemistry
Volume89
Issue number11
DOIs
StatePublished - Jun 6 2017

Funding

The work performed was supported by the Laboratory Director's Research and Development Program of Oak Ridge National Laboratory. Part of the research was supported by the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. This work was supported by the United States Department of Energy (DOE) NA-22. Oak Ridge National Laboratory is operated for the U.S. Department of Energy by UT-Battelle under Contract No. DE-AC05- 00OR22725.

FundersFunder number
Center for Nanophase Materials Sciences
Office of Basic Energy Sciences
Scientific User Facilities Division
UT-BattelleDE-AC05- 00OR22725
United States Department of Energy
U.S. Department of EnergyNA-22
Oak Ridge National Laboratory

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