In this work, 4-fluorobenzonitrile (4-FBN) was introduced as a new additive compound into the photoactive layer of a polymer solar cell (PSC) based on a poly(3-hexylthiophene):[6,6]-phenyl-C 61- butyric acid methyl ester (P3HT:PCBM) blend system. The incorporation of 4-FBN allowed both increased light absorption (φ-φ* transition efficiency) in the visible region and enhanced X-ray diffraction peak of (100), which is attributed to the enhanced crystallinity of the P3HT chains, leading to a higher short-circuit current (J sc) and fill factor (FF). Thus, the overall efficiency of the annealed PSCs was considerably improved from 3.57% (without 4-FBN) to 4.41% (with 4-FBN). © 2011 American Scientific Publishers All rights reserved.
CITATION STYLE
Woo, S., Kwon, H. Y., Jeong, S., Lee, S. J., Park, L. S., Kim, Y., & Han, Y. S. (2011). Enhanced power conversion efficiency of polymer solar cells through the use of 4-fluorobenzonitrile as an additive. In Journal of Nanoelectronics and Optoelectronics (Vol. 6, pp. 338–342). https://doi.org/10.1166/jno.2011.1181
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