Intercalation-driven ferroelectric-to-ferroelastic conversion in a layered hybrid perovskite crystal

Z. Wu; S. Li; Y. M. Yousry; W. P. D. Wong; X. Wang; T. Ma; Z. Chen; Y. Shao; W. H. Liew; K. Yao; F. Pan; K. P. Loh

doi:10.1038/s41467-022-30822-6

Intercalation-driven ferroelectric-to-ferroelastic conversion in a layered hybrid perovskite crystal

Z. Wu, S. Li, Y. M. Yousry, W. P. D. Wong, X. Wang, T. Ma, Z. Chen, Y. Shao, W. H. Liew, K. Yao, F. Pan, K. P. Loh

Research output: Journal article publication › Journal article › Academic research › peer-review

36 Citations (Scopus)

Abstract

Two-dimensional (2D) organic-inorganic hybrid perovskites have attracted intense interests due to their quantum well structure and tunable excitonic properties. As an alternative to the well-studied divalent metal hybrid perovskite based on Pb(2+), Sn(2+) and Cu(2+), the trivalent metal-based (eg. Sb(3+) with ns2 outer-shell electronic configuration) hybrid perovskite with the A3M2X9 formula (A = monovalent cations, M = trivalent metal, X = halide) offer intriguing possibilities for engineering ferroic properties. Here, we synthesized 2D ferroelectric hybrid perovskite (TMA)3Sb2Cl9 with measurable in-plane and out-of-plane polarization. Interestingly, (TMA)3Sb2Cl9 can be intercalated with FeCl4 ions to form a ferroelastic and piezoelectric single crystal, (TMA)4-Fe(iii)Cl4-Sb2Cl9. Density functional theory calculations were carried out to investigate the unusual mechanism of ferroelectric-ferroelastic crossover in these crystals.

Original language	English
Article number	3104
Journal	Nature Communications
Volume	13
Issue number	1
DOIs	https://doi.org/10.1038/s41467-022-30822-6
Publication status	Published - Jun 2022

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10.1038/s41467-022-30822-6

https://www.ncbi.nlm.nih.gov/pubmed/35662239

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title = "Intercalation-driven ferroelectric-to-ferroelastic conversion in a layered hybrid perovskite crystal",

abstract = "Two-dimensional (2D) organic-inorganic hybrid perovskites have attracted intense interests due to their quantum well structure and tunable excitonic properties. As an alternative to the well-studied divalent metal hybrid perovskite based on Pb(2+), Sn(2+) and Cu(2+), the trivalent metal-based (eg. Sb(3+) with ns2 outer-shell electronic configuration) hybrid perovskite with the A3M2X9 formula (A = monovalent cations, M = trivalent metal, X = halide) offer intriguing possibilities for engineering ferroic properties. Here, we synthesized 2D ferroelectric hybrid perovskite (TMA)3Sb2Cl9 with measurable in-plane and out-of-plane polarization. Interestingly, (TMA)3Sb2Cl9 can be intercalated with FeCl4 ions to form a ferroelastic and piezoelectric single crystal, (TMA)4-Fe(iii)Cl4-Sb2Cl9. Density functional theory calculations were carried out to investigate the unusual mechanism of ferroelectric-ferroelastic crossover in these crystals.",

author = "Z. Wu and S. Li and Yousry, {Y. M.} and Wong, {W. P. D.} and X. Wang and T. Ma and Z. Chen and Y. Shao and Liew, {W. H.} and K. Yao and F. Pan and Loh, {K. P.}",

note = "Funding Information: K.P.L. would like to acknowledge Singapore{\textquoteright}s Ministry of Education Tier 2 grant MOE-T2EP50220-0002: Atomic Scale Study of Domain Switching in Two Dimensional Ferroelectrics. F.P. would like to acknowledge Soft Science Research Project of Guangdong Province (No. 2017B030301013). K.Y. would like to acknowledge partial support by A*STAR, under RIE2020 AME Individual Research Grant (IRG) (Grant No.: A20E5c0086). Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

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doi = "10.1038/s41467-022-30822-6",

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AU - Wu, Z.

AU - Li, S.

AU - Yousry, Y. M.

AU - Wong, W. P. D.

AU - Wang, X.

AU - Ma, T.

AU - Chen, Z.

AU - Shao, Y.

AU - Liew, W. H.

AU - Yao, K.

AU - Pan, F.

AU - Loh, K. P.

N1 - Funding Information: K.P.L. would like to acknowledge Singapore’s Ministry of Education Tier 2 grant MOE-T2EP50220-0002: Atomic Scale Study of Domain Switching in Two Dimensional Ferroelectrics. F.P. would like to acknowledge Soft Science Research Project of Guangdong Province (No. 2017B030301013). K.Y. would like to acknowledge partial support by A*STAR, under RIE2020 AME Individual Research Grant (IRG) (Grant No.: A20E5c0086). Publisher Copyright: © 2022, The Author(s).

PY - 2022/6

Y1 - 2022/6

N2 - Two-dimensional (2D) organic-inorganic hybrid perovskites have attracted intense interests due to their quantum well structure and tunable excitonic properties. As an alternative to the well-studied divalent metal hybrid perovskite based on Pb(2+), Sn(2+) and Cu(2+), the trivalent metal-based (eg. Sb(3+) with ns2 outer-shell electronic configuration) hybrid perovskite with the A3M2X9 formula (A = monovalent cations, M = trivalent metal, X = halide) offer intriguing possibilities for engineering ferroic properties. Here, we synthesized 2D ferroelectric hybrid perovskite (TMA)3Sb2Cl9 with measurable in-plane and out-of-plane polarization. Interestingly, (TMA)3Sb2Cl9 can be intercalated with FeCl4 ions to form a ferroelastic and piezoelectric single crystal, (TMA)4-Fe(iii)Cl4-Sb2Cl9. Density functional theory calculations were carried out to investigate the unusual mechanism of ferroelectric-ferroelastic crossover in these crystals.

AB - Two-dimensional (2D) organic-inorganic hybrid perovskites have attracted intense interests due to their quantum well structure and tunable excitonic properties. As an alternative to the well-studied divalent metal hybrid perovskite based on Pb(2+), Sn(2+) and Cu(2+), the trivalent metal-based (eg. Sb(3+) with ns2 outer-shell electronic configuration) hybrid perovskite with the A3M2X9 formula (A = monovalent cations, M = trivalent metal, X = halide) offer intriguing possibilities for engineering ferroic properties. Here, we synthesized 2D ferroelectric hybrid perovskite (TMA)3Sb2Cl9 with measurable in-plane and out-of-plane polarization. Interestingly, (TMA)3Sb2Cl9 can be intercalated with FeCl4 ions to form a ferroelastic and piezoelectric single crystal, (TMA)4-Fe(iii)Cl4-Sb2Cl9. Density functional theory calculations were carried out to investigate the unusual mechanism of ferroelectric-ferroelastic crossover in these crystals.

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Intercalation-driven ferroelectric-to-ferroelastic conversion in a layered hybrid perovskite crystal

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