HiBarSens: Measurement of barrier properties by tunable diode laser absorption spectroscopy (TDLAS)
Research output: Contribution to book/conference proceedings/anthology/report › Conference contribution › Contributed › peer-review
Contributors
Abstract
Organic electronic products require ultra-high barrier materials and an adequate metrology for barrier quality guarantee with water vapor transmission rates (WVTR) better than 10-4 g m-2 d-1. Tunable diode laser absorption spectroscopy is a selective, highly sensitive non-invasive moisture sensor that has been applied to meet these demands. Two different methods - the isostatic mode (carrier gas) and the quasiisostatic mode (accumulation) are compared in one setup and the results are discussed. Thus different interference effects have been identified and there influence on ultra-low permeation measurement was reviewed. As a result a new technology with diffusion controlled transport of the permeate and consequently higher moisture concentrations at the sensor site is shown for a reliable detection of ultra-low water vapor transmission rates. Copyright
Details
Original language | English |
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Title of host publication | Web Coating and Handling Conference 2012 |
Pages | 848-866 |
Number of pages | 19 |
Publication status | Published - 2012 |
Peer-reviewed | Yes |
Publication series
Series | Web Coating and Handling Conference 2012 (Vol. 1-2) |
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Volume | 2 |
Conference
Title | Web Coating and Handling Conference 2012 |
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Duration | 21 - 24 October 2012 |
City | Myrtle Beach, SC |
Country | United States of America |