|
|||||
|
|
Development of a fluorescence lifetime-based sol-gel humidity sensor |
|
| Authors: | Orla McGaughey José Vicente Ros-Lis Aisling K McEvoy Brian D MacCraith |
| Institution: | a Optical Sensors Laboratory, National Centre for Sensor Research, School of Physical Sciences, Dublin City University, Dublin 9, Ireland b Universidad Politécnica de Valencia, Camino de Vera s/n, E-46022 Valencia, Spain c Gas Sensor Solutions Ltd., The Invent Centre, Glasnevin, Dublin 9, Ireland |
| Abstract: | A sol-gel-based optical sensor for the measurement of relative humidity has been developed. It is based on the changes in fluorescence intensity and/or lifetime of the ruthenium complex, ruthenium(II)diphenylphenanthroline-dipyridophenazinehexafluorophosphate. Sensitivity to relative humidity has been demonstrated over the range 0-100% relative humidity. This sensor has been developed for application in the field of indoor air-quality monitoring and displays a limit of detection of 0.35% relative humidity and a resolution of 1.13% over the concentration range of interest (0-50% relative humidity). The effects of varying process parameters on the sensor performance were studied along with the effects of cross-sensitivity to molecular oxygen. |
| Keywords: | Fluorescence lifetime Relative humidity Sol-gel Sensor |
| 本文献已被 ScienceDirect 等数据库收录！ | |