journal article·2026-06

Conformational rearrangement of butylammonium cations across an order-disorder transition in layered perovskite BA2PbI4 revealed by low-temperature Raman spectroscopy and DFT calculation

K. Matoba, A. Shibasaki, M. Umakoshi, Y. Ishii, S. Kawasaki, W. Heiss

Materials Letters· Volume 413
Publisher page

Abstract

No abstract is available for this record. The assistant can identify its topic from the title, but cannot infer the study’s results.

Source: Not provided · Quality: missing

Research context

OpenAlex topics: Perovskite Materials and Applications · 2D Materials and Applications · Covalent Organic Framework Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (14)

Show source-provided references
1. Review on organic–inorganic two-dimensional perovskite-based optoelectronic devices
2. Excitons in 2D organic–inorganic halide perovskites10.1016/j.trechm.2019.04.003 ↗
3. Organic cation dynamics in the layered Lead iodide perovskites BA2PbI4 and PEA2PbI410.1021/acs.jpclett.5c02091 ↗
4. Pressure-engineered structural and optical properties of two-dimensional (C4H9NH3)2PbI4 perovskite exfoliated nm-thin flakes10.1021/jacs.8b07765 ↗
5. Strongly anharmonic octahedral tilting in two-dimensional hybrid halide perovskites10.1021/acsnano.1c02022 ↗
6. Dion–Jacobson lead bromide perovskites with 1,4-butanediammonium cations: lattice dynamics, phase transitions, dielectric switching, and optical properties10.1021/acs.inorgchem.5c04754 ↗
7. Multinoncentrosymmetric two-dimensional Trilayered Lead bromide perovskites with Methylhydrazinium cations: lattice dynamics, phase transitions, dielectric response, and optical properties10.1021/acs.chemmater.4c01174 ↗
8. Rethinking the a cation in halide perovskites10.1126/science.abj1186 ↗
9. Organic–inorganic hybrid perovskites and their heterostructures10.1016/j.matt.2022.11.002 ↗
10. Frisch · 2004
11. Becke · J. Chem. Phys. · 1993 · 98 · 564810.1063/1.464913 ↗
12. Dunning · J. Chem. Phys. · 1989 · 90 · 100710.1063/1.456153 ↗
13. Directional anisotropy of the vibrational modes in 2D-layered perovskites10.1021/acsnano.0c00435 ↗
14. Two-dimensional Lead halide perovskite lateral homojunctions enabled by phase pinning10.1038/s41467-024-47406-1 ↗