 Polymer semiconductors are processed using inkjet printing, such as poly(thiopene)s like poly(3-hexylthiophene) (P3HT) and poly(9,9-dioctylfluorene co-bithiophen) (F8T2).The latter material has also been gravure printed.Different electroluminescent polymers are used with inkjet printing, as well as active materials for photovoltaics (e.g.