The interplay of nanostructure and efficiency of polymer solar cells [Elektronische Ressource] / eingereicht von: Chunhong Yin

Institut für Physik und Astronomie Physik weicher Materie The Interplay of Nanostructure and Efficiency of Polymer Solar Cells Dissertation zur Erlangung des akademischen Grades "doctor rerum naturalium" (Dr. rer. nat.) in der Wissenschaftsdisziplin "Experimentalphysik" Eingereicht von: Chunhong Yin Betreuung: Prof. Dr. Dieter Neher Potsdam, den 04.12.2008 Published online at the Institutional Repository of the University of Potsdam: http://opus.kobv.de/ubp/volltexte/2009/2905/ urn:nbn:de:kobv:517-opus-29054 [http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-29054] Abstract The aim of this thesis is to achieve a deep understanding of the working mechanism of polymer based solar cells and to improve the device performance.  Two types of the polymer based solar cells are studied here: the polymer-polymer solar cells, and the polymer-small molecule solar cell which has polymer as electron donor incorporating with organic small molecule as electron acceptor. For the polymer-polymer devices, I compared the photocurrent characteristics of bilayer and blend devices as well as the blend devices with different nano-morphology, which is fine tuned by applying solvents with different boiling points.