DataVXACS Energy LettersPaper
journal article·2017-05-12

In Situ Study of Degradation in P3HT–Titania-Based Solid-State Dye-Sensitized Solar Cells

Lin Song, Weijia Wang, Stephan Pröller, Daniel Moseguí González, Johannes Schlipf, Christoph J. Schaffer, Kristina Peters, Eva M. Herzig, Sigrid Bernstorff, Thomas Bein, Dina Fattakhova-Rohlfing, Peter Müller-Buschbaum

ACS Energy Letters· Volume 2· Issue 5
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Source abstract

Abstract

The degradation of poly(3-hexylthiophene) (P3HT)–titania-based solid-state dye-sensitized solar cells (ssDSSCs) is studied to better understand device aging mechanisms. The correlation of temporal evolution between P3HT crystallite structures and device performance is discussed for the first time using in situ measurements. For comparison, two types of mesoporous titania photoanodes with different pore sizes are prepared. Grazing incidence wide-angle X-ray scattering is used in situ under continuous solar illumination to obtain information about the impact of pore size on P3HT crystalline order and on temporal evolution of the P3HT crystallites. The development of the photovoltaic characteristics is explored in parallel. The lattice constants, crystal sizes, and volume fraction of crystalline P3HT in the large-pore active layer remain stable over 30 min, while the volume fraction of crystalline P3HT decreases in the small-pore active layer. Thus, the pore size of titania photoanodes is important for the stability of P3HT–titania-based ssDSSCs.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Conducting polymers and applications · Advanced Photocatalysis Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Lehrstuhl für funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Str. 1, 85747 Garching, Germany

Herzig Group, Munich School of Engineering, Technische Universität München, Lichtenbergstr. 4, 85748 Garching, Germany

Department of Chemistry and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München (LMU), Butenandtstr. 5-13 (E), 81377 Munich, Germany

Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza 34149, Trieste, Italy

Funding

Deutsche Forschungsgemeinschaft · Center for NanoScience, Ludwig-Maximilians-Universität München · Bayerisches Staatsministerium für Bildung und Kultus, Wissenschaft und Kunst · China Scholarship Council · Nanosystems Initiative Munich · Munich School of Engineering, Technische Universität München

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