Energy level alignment of poly„3-hexylthiophene...: †6,6‡-phenyl C61 butyric acid methyl ester bulk heterojunction

Direct determination of the electronic structure of the poly(3-hexylthiophene):phenyl-[6,6]-C61 butyric acid methyl ester blend

1566-1199/$ see front matter 2010 Elsevier B.V doi:10.1016/j.orgel.2010.07.023 ⇑ Corresponding author. E-mail address: [email protected] (Z.-L. Guan This article focuses on the electronic structure of the poly(3-hexylthiophene):phenyl-[6,6]C61 butyric acid methyl ester (P3HT:PCBM) blend, widely used in bulk heterojunction (BHJ) solar cells. Given the fact that the surface of the blend film i...

Influence of composition and heat-treatment on the charge transport properties of poly(3-hexylthiophene) and [6,6]-phenyl C61-butyric acid methyl ester blends

Hole mobility enhancement by chain alignment in nanoimprinted poly„3-hexylthiophene... nanogratings for organic electronics

The authors report that the poly 3-hexylthiophene-2,5-diyl P3HT nanogratings shaped by nanoimprint lithography show enhanced hole mobility and strong anisotropy of conductance due to nanoimprint-induced three-dimensional polymer chain alignment. Field effect transistors were fabricated using these nanogratings and device measurements show a hole mobility of 0.03 cm2 /V s along the grating direc...

Performance characteristics of polymer photovoltaic solar cells with an additive-incorporated active layer

We have investigated the performance characteristics of bulk-heterojunction polymer solar cells based on poly(3-hexylthiophene-2,5-diyl) and [6,6]-phenyl C61 butyric acid methyl ester by adding 1,8-octanedithiol as a processing agent in an active layer. The effects of the additive, 1,8-octanedithiol, on the device performance parameter characteristics have been discussed. The current density-vo...

Monitoring the 3D nanostructures of bulk heterojunction polymer solar cells using confocal lifetime imaging.

In this study, the exciton lifetime images within the photoactive layers of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) are revealed by confocal optical microscopy combined with the fluorescence module. The images reveal that the active layers during slow solvent evaporation provide 3D pathways for charge transport and the concentration gradient through t...