Method for manufacturing constituent layers of polymer solar cells by roll to roll coating

摘要

A method for manufacturing membrane layers of organic solar cells by roll to roll coating utilizes a roll to roll process for manufacturing an electron transferring layer and an active layer of the organic solar cells is disclosed. The roll to roll process adopted by the method cooperates with a particular solvent and accompanies a parameter control such as temperature and processing time during the sintering and baking steps. The method utilizes a slot-die coating technique in the interim, whereby a membrane layer of the solar cells can be manufactured with a large area for reducing the cost, and the formed membrane layers can have a good efficiency.

主权项

1. A method for manufacturing constituent layers of polymer solar cells by roll to roll coating comprising steps of:
unwinding a soft substrate, said soft substrate having a cathode layer disposed thereon; slot-die coating a material of an electron transferring layer including zinc oxide and polyethylenimine ethoxylated (PEIE) on said cathode layer to form the electron transferring layer thereon by spreading PEIE evenly in a ZnO structure; sintering said electron transferring layer on said cathode layer; slot-die coating an active layer on said electron transferring layer and baking said active layer concurrently with a baking temperature ranged from 90 to 150° C., a material of said active layer being made by mixing O-xylene as a solvent; and rewinding said soft substrate.