Berlin 2018 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 78: Hybrid and Perovskite Photovoltaics II
CPP 78.12: Talk
Friday, March 16, 2018, 12:30–12:45, C 264
Investigation of mobility controlled amphiphilic diblock copolymer templating for hybrid photovoltaic applications — •Nuri Hohn1, Steffen Schlosser1, Lorenz Bießmann1, Sebastian Grott1, Senlin Xia1, Kun Wang1, Matthias Schwartzkopf2, Stephan Roth3, and Peter Müller-Buschbaum1 — 1TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching — 2DESY, 22607 Hamburg — 3KTH, Department of Fibre and Polymer Technology, SE-100 44 Stockholm, Schweden
Current research in the field of hybrid photovoltaics aims to develop devices, which benefit from the advantages of both their organic and inorganic nature. While the organic part can contribute flexibility, potential low cost and possible large scale production, the inorganic counterpart offers chemical and physical stability. Nevertheless, one major issue in device fabrication still consists of the backfilling process. Therefore, tuning of the pore size of the inorganic thin films is of importance. Based on an amphiphilic diblock copolymer templating with polystyrene-b-polyethylene oxide and tuning of the dryness state of the casting solution different morphologies are achieved after blade coating. The introduced method is expected to facilitate the optimization process of high surface-to-volume ratio against sufficiently large pores for efficient backfilling. Surface and bulk analysis is carried out via SEM and grazing incidence small angle X-ray scattering.