Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
78534 | Solar Energy Materials and Solar Cells | 2013 | 6 Pages |
Inverted all polymer solar cells based on a blend of a perylene diimide based polymer acceptor and a dithienosilole based polymer donor were fabricated from small area devices to roll-to-roll (R2R) coated and printed large area modules. The device performance was successfully optimized by using solvent additive to tune the phase separation. By adding 2% chloronaphthalene as solvent additive for small area (0.25 cm2) devices, a power conversion efficiency (PCE) up to 0.63% was achieved for inverted geometry, higher than that (0.39%) of conventional geometry. This polymer blend showed excellent solution processibility and R2R coated and printed large area (4.2 cm2) solar cells exhibited a PCE of 0.20%.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Flexible inverted all polymer solar cells were fabricated. ► Roll-to-roll coated and printed large area modules were fabricated. ► A perylene diimide based polymer was used as acceptor.