hermetic sealed chamber with transparent windows for laser radiation
to minimize the risk of exposure of hazardous materials during laser ablation
process chamber is suitable not only for direct laser structuring of transparent conductive layers (e. g. AgNW) on R2R barrier, but also for ablation of potential toxic layers / materials (e. g. Perovskite and CIGS based stacks) or laser processing of materials which are sensitive for oxidation, for example
for fast and easy development of camera and lightening systems for inspection tasks
allows the optimization of image quality in much shorter time by quick and easy installation of different cameras, illumination setups and camera lenses
simulation of Roll-to-Roll process by a moving stage
Direct laser structuring of TC on R2R barrier without laser inconsistencies
Local damage of the barrier layer is detected by optical Ca test
new platform for detection of barrier damage and successful laser process window by means of optical Ca test
Permeation method to quantify the water vapour transmission rate (WVTR) of barrier substrates (OPV / OLED industry)
large advantage above other permeation methods like mass spectrometry: - the returned information on the barrier degradation is 2-dimensional - testing of many laser scribes on one single sample
development of an unit for sample preconditioning for WVTR measurements (up to 5 samples, 20 °C – 85 °C, 50 % – 90 % relative humidity)
4-5 times higher sample throughput per measurement unit
faster and hence a much more efficient development of novel barrier materials using the target gas
Rapid gas barrier measurements for quality control of gas barrier materials
WVTR and HeTR of different sample stacks (OPV-relevant)
new concepts for industrial compatible in-line inspection of barrier properties
the fundamental trend of water vapour transmission rate (WVTR) performance can be derived roughly by fast Helium transmission rate (HeTR) measurement
the measurement time for the evaluation of ultra-barrier samples (10-6 g m-2 d-1) can be shorten from 6 weeks (based on WVTR measurement by tunable laser diode spectroscopy – TDLAS) to 12 hours (using HeTR measurement by mass spectroscopy – MS) à possibility of daily quality control