Dec 8 – 9, 2022
Marriott
Europe/Berlin timezone

Morphology control of titania films at low temperature

Dec 9, 2022, 2:00 PM
3h
Marriott

Marriott

Board: P-095
Poster Material Science Poster Session

Speaker

Mr Guangjiu Pan (Technische Universität München, Physik-Department, LS Funktionelle Materialien, James-Franck-Straße 1, 85748 Garching, Germany)

Description

A low-temperature routine to realize inorganic hole-blocking layers (HBLs) is important for the commercialization of perovskite solar cells. Fabricating HBLs at low temperature is energy-saving and compatible with flexible substrates. In this work, titania thin films are synthesized at low temperature with the sol-gel method templated by a diblock copolymer. Tailoring titania film morphology in the low-temperature process is achieved by managing phase separation of the polymer template. The ratio of polymer, precursor, solvent, and catalyst for the sol-gel solution is varied to tune the thin film morphologies. The surface morphologies of films are probed via scanning electron microscopy and GISAXS. The optical properties are examined with ultraviolet-visible spectroscopy and photoluminescence spectra.

Primary author

Mr Guangjiu Pan (Technische Universität München, Physik-Department, LS Funktionelle Materialien, James-Franck-Straße 1, 85748 Garching, Germany)

Co-authors

Shanshan Yin (Technische Universität München, Physik-Department, LS Funktionelle Materialien, James-Franck-Straße 1, 85748 Garching, Germany) Linus F. Huber (Technische Universität München, Physik-Department, LS Funktionelle Materialien, James-Franck-Straße 1, 85748 Garching, Germany) Caroline Ehgartner (Materialchemie, Chemie und Physik der Materialien, Universität Salzburg, 5020 Salzburg, Austria) Prof. Nicola Hüsing (Materialchemie, Chemie und Physik der Materialien, Universität Salzburg, 5020 Salzburg, Austria) Dr Matthias Schwartzkopf (Deutsches Elektronen Synchrotron (DESY), Notkestr. 85 , 22607 Hamburg, Germany) Prof. Stephan V. Roth (Deutsches Elektronen Synchrotron (DESY), Notkestr. 85 , 22607 Hamburg, Germany; KTH, Department of Fibre and Polymer Technology, Teknikringen 56-58 , 10044 Stockholm, Sweden) Prof. Peter Müller-Buschbaum (Technische Universität München, Physik-Department, LS Funktionelle Materialien, James-Franck-Straße 1, 85748 Garching, Germany; MLZ, Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany)

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