Two-dimensional hybrid organic–inorganic perovskites as emergent ferroelectric materials

Summary¶

This entry documents a second PDF of the Journal of Applied Physics perspective 128, 060906 (DOI 10.1063/5.0016010) on two-dimensional hybrid organic–inorganic perovskites (2D HOIPs) as emergent ferroelectric materials. The scientific content is the same single publication as 2020hou-j-appl-phys-two-dimensional-hybrid, which points at papers/Hou_Hybrid_Org_Perovskites_JAP2020_accepted.pdf; the file here (papers/Hou_JAP_2020_2D_hybrid_ferroelectric.pdf) reflects a different corpus scan or layout (AIP typeset vs accepted-manuscript styling) but should not be read as a second independent study. The perspective connects HOIP crystal chemistry and polar order to ferroelectric figures of merit, contrasts 2D HOIPs with classical oxide ferroelectrics on processability grounds, and outlines how atomistic modeling and machine-learning interatomic potentials can accelerate materials-by-design for polar 2D systems. Maintaining both PDF paths documents how the corpus acquired the article (accepted draft vs publisher layout) without duplicating DOI-level metadata in normalized/papers beyond what the sibling record already carries.

Methods¶

Same as 2020hou-j-appl-phys-two-dimensional-hybrid: literature synthesis and conceptual discussion—not one fixed MD benchmark with a single published protocol. The article surveys mechanisms (order–disorder vs displacive motifs, layering effects), processing constraints for solution-processed films, and computational strategies referenced in the field (DFT surveys, machine-learned potentials, high-throughput screening metaphors). Any specific simulation setting (ensemble, k-point density, U parameters) must be taken from the primary studies cited inside the perspective, not inferred from this duplicate PDF stub.

Findings¶

Same narrative as the sibling page: 2D HOIPs are positioned as room-temperature-processable complements to perovskite oxides such as BaTiO₃; the piece emphasizes design rules, opportunities, and challenges for 2D HOIP ferroelectrics rather than reporting one new experimental polarization loop as the core result. Readers should expect qualitative roadmaps—for example contrasts between oxide and hybrid chemistries—and pointers to measurement and modeling literature, rather than a consolidated data table native to this perspective itself.

Limitations¶

Maintaining two PDFs supports provenance when different mirrors exist; readers should pick one file for citation and treat the other as an alternate scan. Perspective articles summarize the literature—trace quantitative claims to primary studies. build_chunks.py will hash both bodies separately; expect near-duplicate chunks unless downstream dedup filters them.

Relevance to group¶

Adri C. T. van Duin is a co-author; useful link between perovskite ferroelectric interest and broader computational materials themes documented elsewhere in the wiki.

Citations and evidence anchors¶

DOI: 10.1063/5.0016010 — alternate PDF: papers/Hou_JAP_2020_2D_hybrid_ferroelectric.pdf; sibling: papers/Hou_Hybrid_Org_Perovskites_JAP2020_accepted.pdf.

Canonical curated body: 2020hou-j-appl-phys-two-dimensional-hybrid.