J Joachim Loos

TL;DR: In this article, the dispersion rate of multi-wall carbon nanotubes (MWCNTs) in aqueous surfactant solution has been monitored by UV-vis spectroscopy and transmission electron microscopy.

TL;DR: In this article, a combination of techniques was used to resolve the morphology of spin cast films of poly(p-phenylene vinylene)/methanofullerene blends in three dimensions on a nanometer scale and relate the results to the performance of the corresponding solar cells.

TL;DR: In this article, the main factors determining the morphology formation and evolution of polymer solar cells are introduced, and gaps of our understanding on nanoscale structure-property relations in the field of high-performance polymer solar cell are addressed.

TL;DR: A consistent and quantitative correlation between solar-cell performance, photophysical data and the three-dimensional morphology has been obtained for devices with different layer thicknesses that enables differentiating between generation and transport as limiting factors to performance.

TL;DR: After annealing treatment, genuine 3D nanoscale networks are formed with high crystalline order and favorable concentration gradients of both P3HT and PCBM through the thickness of the photoactive layer, which accounts for a considerable increase of the power conversion efficiency in corresponding solar cell devices.