Polymer based solar cells are interesting
because their fabrication process is less expensive and
less complicated as compared to inorganic solar cells.
The efficiency of small molecules and copolymers based bulk
heterojunction devices is steadily increased over the last
decade. Solution-processable small molecules and copolymers
have attractive features for application in photovoltaic
cells. They are easier to synthesize, purify and typically
show higher charge carrier mobility....