Dear Eduarodo and Lorenzo, Thank you very much for your explanation. That make sense to me.
Lorenzo, probably you mean another thread? I failed to find your post in the discussion I linked in my initial post. Regards, Yao -- Yao Yao PhD. Candidate 3rd Generation Strand ARC Photovoltaics Centre of Excellence University of New South Wales Sydney, NSW Australia -------------- next part -------------- An HTML attachment was scrubbed... URL: http://pwscf.org/pipermail/pw_forum/attachments/20121110/d0b671ac/attachment.html
