Why must the TCO layer be thicker?

20 November 2013 1 3K Report

In N-I-P or P-I-N single junction solar cells, top and bottom TCO should be thicker in comparison to N-I-P individual layers. Is there any additional reason for this except surface diffusion?

Vladimir I Chukharev

They must not. Just one usually selects TCO by low enough sheet resistance, and that is achieved with something like 50-100nm thick ITO or FTO.

And what do you mean by surface diffusion in here?

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