Back electrode - TCO - Role-to-role
In second generation photovoltaic elements the back electrode is typically a thin film metallic layer. To improve the efficiency, high demands are required for all elements in a cell. Polyteknik is capable of applying different metallic back electrodes on various substrates in a role-to-role process. Modification or pacification of the deposited metallic surface can be done by depositing e.g. a thin layer of zinc oxide.
