Citranox Corrosion for Photovoltaic Application
Q. We use Citranox for cleaning glass coated with tin oxide. We use the cleaned glass to deposit thin film CdS/CdTe photovoltaic devices. We use your citranox detergent and use a stainless steel ultrasonic cleaner. Is there a concern that the citranox could corrode stainless and deposit metallic ions on the glass surface? Which can be detrimental to the semiconductor films of the photovoltaic devices? Should we use a PTFE ultrasonic cleaner?
Using a Miele Washer
Q. I was curious if Solujet and Liquinox are interchangeable? We are a medical device company that currently uses Liquinox to wash glassware by hand, but recently got a Miele glassware washer and want to use an Alconox product in it.
A. Solujet will give comparable cleaning performance in a Miele washer to manual cleaning with Liquinox.
Using a Conductivity Controller in a Washer
Q. How does a conductivity controller regulate a dosing pump in a machine washer?
A. A conductivity probe would need to be set up in the sump of a machine washer. The conductivity recorded is sent to the conductivity controller that regulates the pump (usually a peristaltic pump) that dispenses the detergent into the sump. The pump dispenses until the correct conductivity is reached for the desired concentration. Typically a concentration of 0.5% or 0.1% detergent is desired.
Advantages of Properly Cleaned Glass Substrates
Q. I have previously worked on CdTe solar cells in academia and DSC in industry and currently work with industry on collaborative R&D projects across materials science. I would like further information on the advantages of properly cleaned/prepared glass substrates and it’s effects of module/cell performance.
Removing Latex from Optical Cuvette
Q: How do I remove latex particles from an optical cuvette.
A: We recommend you use a warm 1% Alconox detergent followed by a warm water rinse to clean the optical cuvettes.
