Journalartikel

Jahr der Veröffentlichung: 2021

Seiten: 9355-9367

Zeitschrift: ACS Nano

Bandnummer: 15

Heftnummer: 6

ISSN: 1936-0851

DOI Link: https://doi.org/10.1021/acsnano.0c04491

Verlag: American Chemical Society

Abstract: 
The introduction of dislocations is a recently proposed strategy to tailor the functional and especially the electrical properties of ceramics. While several works confirm a clear impact of dislocations on electrical conductivity, some studies raise concern in particular when expanding to dislocation arrangements beyond a geometrically tractable bicrystal interface. Moreover, the lack of a complete classification on pertinent dislocation characteristics complicates a systematic discussion and hampers the design of dislocation-modified electrical conductivity. We proceed by mechanically introducing dislocations with three different mesoscopic structures into the model material single-crystal SrTiO3 and extensively characterizing them from both a mechanical as well as an electrical perspective. As a final result, a deconvolution of mesoscopic structure, core structure, and space charge enables us to obtain the complete picture of the effect of dislocations on functional properties, focusing here on electric properties.

Harvard-Zitierstil: Porz, L., Frömling, T., Nakamura, A., Li, N., Maruyama, R., Matsunaga, K., et al. (2021) Conceptual Framework for Dislocation-Modified Conductivity in Oxide Ceramics Deconvoluting Mesoscopic Structure, Core, and Space Charge Exemplified for SrTiO3, ACS Nano, 15(6), pp. 9355-9367. https://doi.org/10.1021/acsnano.0c04491

APA-Zitierstil: Porz, L., Frömling, T., Nakamura, A., Li, N., Maruyama, R., Matsunaga, K., Gao, P., Simons, H., Dietz, C., Rohnke, M., Janek, J., & Rödel, J. (2021). Conceptual Framework for Dislocation-Modified Conductivity in Oxide Ceramics Deconvoluting Mesoscopic Structure, Core, and Space Charge Exemplified for SrTiO3. ACS Nano. 15(6), 9355-9367. https://doi.org/10.1021/acsnano.0c04491