https://www.nist.gov/publications/correlation-between-morphology-and-device-performance-pbtttpc71bm-solar-cells
Correlation Between Morphology and Device Performance of pBTTT:PC71BM Solar Cells | NIST
Oct 12, 2021 - Phenyl-C71-butyric acid methyl ester (PC71BM) could intercalate between the side-chains of poly(2,5-bis(3-tetradecylthiophen-2-yl)thieno[3