Report on carbon electrode with optimized conductivity and charge selectivity.

This report will be a result of the development work on anode materials in Task 1.4. The carbon electrode should be highly conductive (<5 ohm/square) and chemically compatible with the underlying layers in a perovskite, i.e. not dissolve or react with the underlying layers. Moreover, the charge selectivity of the carbon layer should be tailored to promote - at the interface to perovskite - high extraction of holes whereas electrons are repelled without sustaining losses of the lateral conductivity of the carbon in its function as low-resistive back electrode.