Re-entrant relaxor ferroelectricity of methylammonium lead iodide

Guo, Horng-Yuh; Liu, Peixue; Zheng, Shichao; Zeng, Shixian; Liu, Na; Hong, Seungbum

doi:10.1016/j.cap.2016.09.016

Cited by 18 publications

(7 citation statements)

References 32 publications

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“…The polarization of two samples which showed highest variation during piezo‐voltage measurement, i. e. 15 M and 30 M was determined from the polarization‐electric field (PE) hysteresis loop analysis (Figure S4). They showed the behaviour of a relaxor ferroelectric material . Under 10 kV/cm electric field, both had similar remanent polarization values, but maximum polarization (P max ) for 15 M and 30 M were 1.12 and 1.57 μC/cm 2 respectively implying 40% increase in polarizability going from 15 M to 30 M. This clearly suggests higher polarzability for the sample prepared at 30 min ball mill grinding.…”

Section: Resultsmentioning

confidence: 89%

Lattice‐Defect‐Induced Piezo Response in Methylammonium‐Lead‐Iodide Perovskite Based Nanogenerator

et al. 2018

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Methylammonium lead iodide (MAPbI3), a hybrid perovskite has become the semiconductor for case studies in several material properties due to its multi‐faceted electronic application. Other than photovoltaics, generation of piezoelectricity from hybrid perovskites has been reported previously, though its origin remained unsubstantiated. In this report, MAPbI3 with different degrees of crystal defects as determined by positron annihilation spectroscopy are developed through ball‐mill grinding procedure and utilized to fabricate flexible piezoelectric nanogenerators. We have demonstrated that at room temperature the lattice defects play the pivotal role in governing the ionic polarization which in principle governs the piezo‐effect in MAPbI3. The best device performance is exhibited by maximum defect containing sample having significant amount of Pb2+ defects. A device fabricated with 5 wt% PDMS composite produces piezo‐voltage of more than 100 V with a maximum power density of 0.3 mW/cm3 and can illuminate commercially available 30 blue light emitting diodes.

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Section: Resultsmentioning

confidence: 89%

Lattice‐Defect‐Induced Piezo Response in Methylammonium‐Lead‐Iodide Perovskite Based Nanogenerator

et al. 2018

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“…Meanwhile, the similar behaviors have been reported in Pb/Bi–based perovskites, such as (Ba 0.925 Bi 0.05 )(Ti 1‐ x /100 Sn x /100 )O 3 and Pb 0.76 Ca 0.24 TiO 3. The re‐entrant relaxor behavior means that a relaxor state occurs below the ferroelectric‐paraelectric phase transition. The term “re‐entrant” sometimes means that the cluster glass state “re‐entering” a disordered phase from a ordered ferromagnetic/ferroelectric state.…”

Section: Introductionmentioning

confidence: 99%

Re‐entrant dipole glass‐like behavior and lattice dynamics of 0.65Bi(Mg_1/2Ti_1/2)O₃‐0.35PbTiO₃

et al. 2019

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The 0.65Bi(Mg1/2Ti1/2)O3‐0.35PbTiO3 (0.65BMT‐0.35PT) ceramic, nearby morphotropic phase boundary (MPB), between tetragonal and rhombohedral was prepared. Dielectric permittivity dependence of temperature exhibits a re‐entrance dipole glass‐like behavior near room temperature. The behavior was described by the Vogel‐Fulcher law and the new glass model. Furthermore, a phenomenological statistical model was employed to determine the distribution of clusters dependence of temperature. The lattice dynamics of the 0.65BMT‐0.35PT ceramic was estimated by Raman spectroscopy from 298‐723 K. A disruption of ferroelectric long‐range order and an occurrence of local lattice distortion were revealed. The relaxor‐ferroelectric (r‐FE) nature of the 0.65BMT‐0.35PT was characterized by polarization‐electric field P(E). A close relation between the distribution of clusters and ferroelectric properties was established.

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“…13 The presence of macroscopic ferroelectricity in hybrid perovskites remains a matter of research and debate, but there is growing evidence supporting polar domains at room temperature. [14][15][16] In this study we consider only naturally occurring minerals, and so one could expect that the materials would not suffer from the same instability issues observed for lead halide perovskites. 17 We start from a small dataset 18 of $200 known, naturally occurring minerals and aim to identify materials that possess many of the desirable properties for an efficient material for solar energy conversion, using screening criteria discussed in the next section.…”

Section: Introductionmentioning

confidence: 99%

Candidate photoferroic absorber materials for thin-film solar cells from naturally occurring minerals: enargite, stephanite, and bournonite

Wallace

Svane

Huhn

et al. 2017

Sustainable Energy Fuels

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To build on the success of other mineral systems employed in solar cells, including kesterites (Cu2ZnSnS4) and herzenbergite (SnS), as well as mineral-inspired systems such as lead halide perovskites (CH3NH3PbI3), we have searched for photoactive minerals with the additional constraint that a polar crystal structure is adopted. Macroscopic electric fields provide a driving force to separate electrons and holes in semiconductor devices, while spontaneous lattice polarisation in polar semiconductors can facilitate microscopic photo-carrier separation to enhance carrier stability and lifetimes. We identify enargite (Cu3AsS4), stephanite (Ag5SbS4), and bournonite (CuPbSbS3) as candidate materials and explore their chemical bonding and physical properties using a first-principles quantum mechanical approach

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Re-entrant relaxor ferroelectricity of methylammonium lead iodide

Cited by 18 publications

References 32 publications

Lattice‐Defect‐Induced Piezo Response in Methylammonium‐Lead‐Iodide Perovskite Based Nanogenerator

Lattice‐Defect‐Induced Piezo Response in Methylammonium‐Lead‐Iodide Perovskite Based Nanogenerator

Re‐entrant dipole glass‐like behavior and lattice dynamics of 0.65Bi(Mg_1/2Ti_1/2)O₃‐0.35PbTiO₃

Candidate photoferroic absorber materials for thin-film solar cells from naturally occurring minerals: enargite, stephanite, and bournonite

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Re-entrant relaxor ferroelectricity of methylammonium lead iodide

Cited by 18 publications

References 32 publications

Lattice‐Defect‐Induced Piezo Response in Methylammonium‐Lead‐Iodide Perovskite Based Nanogenerator

Lattice‐Defect‐Induced Piezo Response in Methylammonium‐Lead‐Iodide Perovskite Based Nanogenerator

Re‐entrant dipole glass‐like behavior and lattice dynamics of 0.65Bi(Mg1/2Ti1/2)O3‐0.35PbTiO3

Candidate photoferroic absorber materials for thin-film solar cells from naturally occurring minerals: enargite, stephanite, and bournonite

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Re‐entrant dipole glass‐like behavior and lattice dynamics of 0.65Bi(Mg_1/2Ti_1/2)O₃‐0.35PbTiO₃