[mems-talk] Color change of borosilicate glass under UV/Ozone exposure

[Matthew Davies]

Has anybody else observed the slight brown tinge that appears after  
borosilicate glass microscope slides are exposed to UV and ozone?   
Been trying to find articles, but nothing pops out at me.  I'm just  
trying to find out how the surface chemistry of the glass changes.   
Whether the brown tinge is indicative of surface changes by nitrogen  
groups and whether the surface is oxidised further.  I don't know how  
much energy is required to modify the surface of glass and whether a  
standard UV/ozone system comes even close to that.  We clean our  
microscope slides pretty thoroughly, so I know its not due to  
contamination.  Any articles people have seen around the traps about  
these subjects?

Cheers all


Dr Matt Davies
Research Assistant
Science & Technology Research Institute
University of Hertfordshire
College Lane
HATFIELD	AL10 9AB
UK

e : m.davies at herts.ac.uk
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