Engineering of Pyroelectric Crystals Decoupled from Piezoelectricity as Illustrated by Doped α-Glycine

Shiri Dishon Ben Ami; David Ehre; Andrei Ushakov; Tevie Mehlman; Alexander Brandis; Denis Alikin; Vladimir Shur; Andrei Kholkin; Meir Lahav; Igor Lubomirsky

doi:10.1002/anie.202213955

Engineering of Pyroelectric Crystals Decoupled from Piezoelectricity as Illustrated by Doped α-Glycine

Shiri Dishon Ben Ami, David Ehre, Andrei Ushakov, Tevie Mehlman, Alexander Brandis, Denis Alikin, Vladimir Shur, Andrei Kholkin, Meir Lahav, Igor Lubomirsky

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2 Scopus citations

Abstract

Design of pyroelectric crystals decoupled from piezoelectricity is not only a topic of scientific curiosity but also demonstrates effects in principle that have the potential to be technologically advantageous. Here we report a new method for the design of such materials. Thus, the co-doping of centrosymmetric crystals with tailor-made guest molecules, as illustrated by the doping of α-glycine with different amino acids (Threonine, Alanine and Serine). The polarization of those crystals displays two distinct contributions, one arising from the difference in dipole moments between guest and host and the other from the displacement of host molecules from their symmetry-related positions. These contributions exhibit different temperature dependences and response to mechanical deformation. Thus, providing a proof of concept for the ability to design pyroelectric materials with reduced piezoelectric coefficient (d₂₂) to a minimal value, below the resolution limit of the method (<0.005 pm/V).

Original language	English
Article number	e202213955
Journal	Angewandte Chemie - International Edition
Volume	61
Issue number	49
DOIs	https://doi.org/10.1002/anie.202213955
State	Published - 5 Dec 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.

Funding

This work was supported by the collaborative program of the Israeli Ministry of Science with the Russian Foundation for Basic Research (RFBR), grant #3‐16492. Russian partners thank RFBR for the financial support within the project #19‐52‐06004 MHTИ_a. The equipment of the Ural Center for Shared Use “Modern nanotechnology” Ural Federal University (Reg. N 2968) was used with the financial support of the Ministry of Science and Higher Education of the RF (Project N 075‐15‐2021‐677). This work was developed within the scope of project CICECO‐Aveiro Institute of Materials (UIDB/50011/2020 & UIDP/50011/2020) financed by national funds through the FCT—Foundation for Science and Technology (Portugal). IL thank the Israel Science Foundation for the financial support (#1898/22). The research made possible due to historic generosity of the Harold Perlman Family. VS is grateful for financial support of the Ministry of Science Higher Education of the Russian Federation (state task FEUZ‐2020‐0054). o o This work was supported by the collaborative program of the Israeli Ministry of Science with the Russian Foundation for Basic Research (RFBR), grant #3-16492. Russian partners thank RFBR for the financial support within the project #19-52-06004 MHTИ_a. The equipment of the Ural Center for Shared Use “Modern nanotechnology” Ural Federal University (Reg. No 2968) was used with the financial support of the Ministry of Science and Higher Education of the RF (Project No 075-15-2021-677). This work was developed within the scope of project CICECO-Aveiro Institute of Materials (UIDB/50011/2020 & UIDP/50011/2020) financed by national funds through the FCT—Foundation for Science and Technology (Portugal). IL thank the Israel Science Foundation for the financial support (#1898/22). The research made possible due to historic generosity of the Harold Perlman Family. VS is grateful for financial support of the Ministry of Science Higher Education of the Russian Federation (state task FEUZ-2020-0054).

Funders	Funder number
CICECO-Aveiro Institute of Materials
Israeli Ministry of Science with the Russian Foundation for Basic Research
Fundação para a Ciência e a Tecnologia
Russian Foundation for Basic Research	3‐16492, 19‐52‐06004 MHTИ_a
Israel Science Foundation	1898/22
Ministerstwo Edukacji i Nauki	UIDP/50011/2020, N 075‐15‐2021‐677, UIDB/50011/2020
Ural Federal University
Ministry of Science and Higher Education of the Russian Federation	FEUZ-2020-0054

Keywords

Amino Acids
Crystal Engineering
Piezoelectricity
Pyroelectricity
Symmetry Reduction

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10.1002/anie.202213955

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abstract = "Design of pyroelectric crystals decoupled from piezoelectricity is not only a topic of scientific curiosity but also demonstrates effects in principle that have the potential to be technologically advantageous. Here we report a new method for the design of such materials. Thus, the co-doping of centrosymmetric crystals with tailor-made guest molecules, as illustrated by the doping of α-glycine with different amino acids (Threonine, Alanine and Serine). The polarization of those crystals displays two distinct contributions, one arising from the difference in dipole moments between guest and host and the other from the displacement of host molecules from their symmetry-related positions. These contributions exhibit different temperature dependences and response to mechanical deformation. Thus, providing a proof of concept for the ability to design pyroelectric materials with reduced piezoelectric coefficient (d22) to a minimal value, below the resolution limit of the method (<0.005 pm/V).",

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AU - Brandis, Alexander

AU - Alikin, Denis

AU - Shur, Vladimir

AU - Kholkin, Andrei

AU - Lahav, Meir

AU - Lubomirsky, Igor

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Engineering of Pyroelectric Crystals Decoupled from Piezoelectricity as Illustrated by Doped α-Glycine

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Keywords

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