Description
Cellulose nanomaterials, which is a kind of emerging high-value nanoparticles extracted from plants, are abundant in nature, renewable and sustainable, providing endless possibility in polymer solar cells. Charge carrier transfer layers and metal electrodes fabricated with traditional processes such as atom layer deposition and thermal evaporation are difficult to recycle. Therefore, here we aim to utilize spray-coating with solution-processable materials for each layer including electrode.
In the first step of this project, inks that can be used for spraying will be prepared and the different functional inks will be sprayed onto the substrate layer by layer. In the second step, the film morphology and microstructure are controlled by optimizing various parameters such as coating parameters and post-treatment as well as solvent engineering. In the last step, the electronic properties and the structural properties of the film will be investigated using a four-point-measurement, atomic force microscope and ellipsometry as well as grazing incidence wide-angle X-ray scattering.
Literature: C.J. Brett, N. Mittal, W. Ohm, M. Gensch, L. P. Kreuzer, V. Körstgens, M. Månsson, H. Frielinghaus, P. Müller-Buschbaum, L.D. Söderberg, and S. V. Roth: “Water-Induced Structural Rearrangements on the Nanoscale in Ultrathin Nanocellulose Films“, Macromolecules 52, 4721 (2019)
| Field | A1: Solid-state physics and nanoscience (application oriented) |
|---|---|
| DESY Place | Hamburg |
| DESY Division | FS |
| DESY Group | FS-SMA |
