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Posted: July 9, 2009
Photovoltaic Demand Highlights Nanovea Profilometers Superior Capabilities
(Nanowerk News) As demand increases for reliable measurement solutions of solar cell and photovoltaic surfaces challenges began to arise. The most significant challenge being that solar cell materials absorb light, therefore light based Profilometers are useless and a stylus must be used as a result—wrong. Fortunately, Nanovea has been providing White Light Profilometers capable of this very task for years. For those who rely on stylus measurements its time to consider evolving from using prehistoric surface measurements.
Unlike the others, Nanovea’s White Light 3D Non-Contact Profilometers can precisely measure glass surfaces, light absorbing materials and wafer bowing with superior accuracy and speed. Offered as a stand alone instrument or an integrated inline inspection system ideal for inspection at all stages during solar cell production. Measurement capabilities are flexible enough to provide accuracies to measure glass roughness less than 10nm, photovoltaic roughness in the micrometer range, trace heights typically in the 10’s of micrometers and a broad range to measure wafer bowing which could be larger than 1mm. No other Profilometer is capable of matching the precision, speed and broad application use of Nanovea’s Profilometers; now add solar production efficient to the list.
All Nanovea Profilometers use the same Technique and Software. Nanovea PRVision is also an option on most Profilometers for auto pattern recognition. Profilometers speeds range from 20mm/s to 1m/s for laboratory or research to the needs of hi-speed inspection. Nanovea Profilometers can be built with custom size, speeds, scanning capabilities, Class 1 Clean Room compliance and with Indexing Conveyor. “We are very pleased with the opportunity that the Photovoltaic industry has given to our Profilometer business. We have always been very proud of our technique and this really spotlights what we’ve known for a while now” says Craig Liesing, Product Manager.