Stacking Polymorphism in PtSe2 Drastically Affects Its Electromechanical Properties

Kempt R, Lukas S, Hartwig O, Prechtl M, Kuc A, Brumme T, Li S, Neumaier D, Lemme MC, Duesberg GS, Heine T (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Advanced Science Wiley Open Access

Book Volume: 9

Article Number: 2201272

Journal Issue: 22

DOI: 10.1002/advs.202201272

Abstract

PtSe2 is one of the most promising materials for the next generation of piezoresistive sensors. However, the large-scale synthesis of homogeneous thin films with reproducible electromechanical properties is challenging due to polycrystallinity. It is shown that stacking phases other than the 1T phase become thermodynamically available at elevated temperatures that are common during synthesis. It is shown that these phases can make up a significant fraction in a polycrystalline thin film and discuss methods to characterize them, including their Seebeck coefficients. Lastly, their gauge factors, which vary strongly and heavily impact the performance of a nanoelectromechanical device are estimated.

Involved external institutions

Technische Universität Dresden

Germany (DE) AMO GmbH Gesellschaft für Angewandte Mikro- und Optoelektronik mbH

Germany (DE) Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen

Germany (DE) Universität der Bundeswehr München

Germany (DE) Helmholtz-Zentrum Dresden-Rossendorf (HZDR)

Germany (DE)

How to cite

APA:

Kempt, R., Lukas, S., Hartwig, O., Prechtl, M., Kuc, A., Brumme, T.,... Heine, T. (2022). Stacking Polymorphism in PtSe2 Drastically Affects Its Electromechanical Properties. Advanced Science, 9(22). https://doi.org/10.1002/advs.202201272

MLA:

Kempt, Roman, et al. "Stacking Polymorphism in PtSe2 Drastically Affects Its Electromechanical Properties." Advanced Science 9.22 (2022).

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