DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2017 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 53: Fundamentals of Perovskite Photovoltaics V (joint session CPP/DS/HL)

HL 53.7: Talk

Wednesday, March 22, 2017, 12:15–12:30, ZEU 250

Investigation of novel material systems for hybrid photovoltaics - alternatives for the paradigm — •Nuri Hohn1, Mike Boone2, Eric Rivard2, and Peter Müller-Buschbaum11TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching, Germany — 2University of Alberta, Department of Chemistry, Edmonton, Alberta, Canada

Organic materials have been found to offer various, promising advantages for photovoltaic (PV) devices like flexibility and the potential of low-cost/large scale production. Hybrid devices combine these advantages with the chemical/physical stability of inorganic materials and, thus, overcome the issue of limited lifetimes of purely organic cells. Poly(styrene-block-ethylene oxide) templated sol-gel chemistry is used to synthesize high surface-to-volume ratio, mesoporous titania thin films, which allows for precise structure control and an increased amount of interface. The n-type, electron conducting titania thin film serves as a basis for novel organic material studies. The studies aim to introduce new material combinations to the field of hybrid PV and to open up pathways for enhanced efficiency in terms of energy conversion and band alignment. Thin film spectral absorption characterization is carried out via UV/Vis measurements. Furthermore, morphological characterization is realized via SEM and XRD to address to surface structure and the crystallinity of the material.

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