Mahni Fatahi

1 Introduction Solution processing (SP) promises an attractive route toward cost-efficient large-area fabrication of organic light-emitting diodes (OLEDs). High-throughput techniques such as slot-die coating and inkjet printing that are compatible with roll-to-roll manufacturing have been used to fabricate these devices [1-3]. Compared to vacuum deposition, SP uses less energy, and there is not as much material waste [2].