Regensburg 2016 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 26: Poster session II
MM 26.36: Poster
Dienstag, 8. März 2016, 18:30–20:30, Poster B3
Synthesis and characterization of bulk heterojunction solar cells based on nanoporous templates — •Sven Hilke1, Yonggang Zhen2, Wenping Hu2, and Gerhard Wilde1 — 1Institut für Materialphysik, WWU Münster, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany — 2Institute of Chemistry, Chinese Academy of Sciences, ZhongGuanCun North First St 2, Beijing 100190, P. R. China
The well-known system Zn-Phthalocyanine:Fullerene (ZnPc:C60) as a model system of bulk-heterojunction solar cells has been chosen to analyze the effect of a nanoporous structuring on the applicability of the resulting hetero molecular mixture. In this context, the basis of the pre-structuring is an Anodic Aluminum Oxide (AAO) membrane made of aluminum oxide constructed by electrochemical processes. The controlled wet-chemical deposition via the dipNdry (dipping and drying) method generates tubes or rods (depending on concentration, solvent as well as dipping time and repetition). Naturally, the pre-structuring directly influences the morphology on the nanometer scale. The presented work consists of the controlled growth of the nanoporous templates to obtain regular pore structures with equal and uniformly distributed surface area in the hetero intersection. In addition, every single nanopore is individually functional so that the failure of a single nanopore does not cause the destruction of the whole solar cell. Scanning electron and scanning tunneling microscopy, as well as optical characterizations are used to analyze the obtained structures.