biostudies-literatureUnknown9(1)Sherafatipour GAchieving long-term stability in organic solar cells is a remaining bottleneck for the commercialization of this otherwise highly appealing technology. In this work, we study the performance and stability differences in standard and inverted DBP/C₇₀ based organic solar cells. Differences in the charge-transfer state properties of inverted and standard configuration DBP/C₇₀ solar cells are revealed by sensitive external quantum efficiency measurements, leading to differences in the open-circuit voltages of the devices. The degradation of standard and inverted solar cell configurations at ISOS aging test conditions (ISOS-D-3 and ISOS-T-3) was investigated and compared. The results indicate that the performance drop in the small molecule bilayer solar cells is less relatScientific reports4024https://www.ebi.ac.uk/biostudies/studies/S-EPMC6412045biostudies-literatureDegradation pathways in standard and inverted DBP-C₇₀ based organic solar cells.PMC6412045Benduhn JMadsen MVandewal KSherafatipour GSpoltore DRubahn HGPatil BRAhmadpour MfalseDegradation pathways in standard and inverted DBP-C₇₀ based organic solar cells.Achieving long-term stability in organic solar cells is a remaining bottleneck for the commercialization of this otherwise highly appealing technology. In this work, we study the performance and stability differences in standard and inverted DBP/C₇₀ based organic solar cells. Differences in the charge-transfer state properties of inverted and standard configuration DBP/C₇₀ solar cells are revealed by sensitive external quantum efficiency measurements, leading to differences in the open-circuit voltages of the devices. The degradation of standard and inverted solar cell configurations at ISOS aging test conditions (ISOS-D-3 and ISOS-T-3) was investigated and compared. The results indicate that the performance drop in the small molecule bilayer solar cells is less relat2019-01-01T00:00:00Z2019 Mar2025-04-19T20:00:05.724Z2019-08-04T08:23:38ZS-EPMC64120453085853910.1038/s41598-019-40541-6