Understanding and Controlling the Evolution of Nanomorphology and Crystallinity of Organic Bulk-Heterojunction Blends with Solvent Vapor Annealing

Solvent vapor annealing (SVA) has established itself as a highly efficient post-treatment process for enhancing power conversion efficiency (PCE). In cooperation with the Prof Spiecker group and CENEM we investigate the mechanisms of the SVA process of Organic Bulk-Heterojunction Blends. Thanks to the systematic EFTEM study by Christina we could measure the nm crystal growth kinetics from solvent vapor annealing. It really sets the standards on high resolution TEM imaging for organics!