초록 |
Morphology of conjugated polymers is a critical factor that significantly effects intrinsic charge transport characteristics and in turn performance of polymer-based devices. Morphological defects including misaligned crystalline grains and grain boundaries significantly impede efficient charge hopping between transport sites, resulting in degradation of device performance. Therefore, one important challenge is to control morphology of active polymer thin-films for achieving high performance electronic devices. This talk will demonstrate novel processing strategies that can tune the morphologies and thus impact charge transport properties of conjugated polymer thin films. Of the processing strategies, polymer solution treatments and film deposition techniques will be mainly discussed. Also, the correlation between processing conditions, active layer morphologies, and device performance will be discussed. |