@article{SisLab3146,
          volume = {42},
           month = {January},
          author = {Sung-yoon Joe and Shinyoung Ryu and Duc Cuong Nguyen and Jong Hyuk Yim and Huiseong Jeong and Na Young Ha and Y.H. Ahn and Ji-Yong Park and Soonil Lee},
           title = {Contributions of poly(3-hexylthiophene) nanowires to alteration of vertical inhomogeneity of bulk-heterojunction active layers and improvements of light-harvesting and power-conversion efficiency of organic solar cells},
       publisher = {Elsevier B.V.},
            year = {2017},
         journal = {Organic Electronics},
             doi = {10.1016/j.orgel.2016.12.063},
           pages = {372--378},
             url = {https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3146/},
        abstract = {We report a 47.1\% efficiency improvement resulting from the combination of device-architecture modification and inclusion of poly(3-hexylthiophene-2,5-diyl) nanowires (P3HT NWs) in bulk heterojunction (BHJ) active layers (ALs). Modelling of ellipsometry spectra shows substantial changes in inhomogeneity and optical constants of BHJ ALs with P3HT-NW inclusion. Furthermore, finite-difference time-domain simulation results based on actual device structures with inhomogeneous AL models indicate that enhanced light harvesting is a main contributing factor to efficiency improvement. On the contrary, P3HT-NW inclusion has no significant effect on charge carrier collection, other than suppressing occurrence of cul-de-sac in hole-transport pathways and unfavourable indene-C60 bisadduct domains near top anodes.}
}