TY  - JOUR
ID  - SisLab3146
UR  - https://www.elsevier.com/en-xs
A1  - Joe, Sung-yoon
A1  - Ryu, Shinyoung
A1  - Nguyen, Duc Cuong
A1  - Yim, Jong Hyuk
A1  - Jeong, Huiseong
A1  - Ha, Na Young
A1  - Ahn, Y.H.
A1  - Park, Ji-Yong
A1  - Lee, Soonil
Y1  - 2017/01/03/
N2  - 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.
PB  - Elsevier B.V.
JF  - Organic Electronics
VL  - 42
SN  - 1566-1199
TI  - 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
SP  - 372
AV  - public
EP  - 378
ER  -