DataVXSmallPaper
journal article·2026-03

About Carrier's Self‐Trapping and Dynamical Rashba Splitting in the 2D Hybrid Perovskite (BA) 2 (MA) 2 Pb 3 l 10

Weiyan Qi, Stefano Ponzoni, Guénolé Huitric, Vitaly Gorelov, Ashim Pramanik, Yannis Laplace, Marino Marsi, Evangelos Papalazarou, Sebastian F. Maehrlein, Emmanuelle Deleporte, Nitin Mallik, Amina Taleb‐Ibrahimi, Azzedine Bendounan, Kaibo Zheng, Tönu Pullerits, Luca Perfetti

Small· Volume 22· Issue 17
Publisher page
Source abstract

Abstract

ABSTRACT Time‐ and Angle‐Resolved Photoelectron Spectroscopy (tr‐ARPES) is employed to monitor photoexcited electrons in the 2D hybrid perovskite (BA)(MA). Photoelectron intensity maps are in good agreement with ab‐initio calculations of the band structure. The effective mass is and for holes and electrons, respectively. In the photoexcited state, spin‐orbit splitting of the conduction band cannot be resolved. This sets the upper bound of photoinduced Rashba coupling to eVÅ. The correlated electron‐hole plasma evolves in Wannier excitons with Bohr radius of 2.8 nm, while no sign of self‐trapping in small polarons is found within the investigated time window of up to 120 ps following photoexcitation.
Source: crossref · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Organic and Molecular Conductors Research · 2D Materials and Applications

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

Affiliations

Laboratoire des Solides Irradiés, CEA/DRF/lRAMIS, CNRS, Ecole Polytechnique Institut Polytechnique de Paris Palaiseau France

Laboratoire de Physique des Solides Université Paris‐Saclay, CNRS Orsay France

Department of Physical Chemistry Fritz Haber Institute of the Max Planck Society Berlin Germany

Institute of Radiation Physics Helmholtz‐Zentrum Dresden‐Rossendorf Dresden Germany

Institute of Applied Physics Dresden University of Technology Dresden Germany

Université Paris‐Saclay, ENS Paris‐Saclay CentraleSupélec, CNRS, Lumière, Matière et Interfaces (LuMIn) Laboratory Gif‐sur‐Yvette France

Société civile Synchrotron SOLEIL L'Orme des Merisiers, Saint‐Aubin ‐ BP 48 GIF‐sur‐YVETTE France

Department of Chemistry Technical University of Denmark Kongens Lyngby Denmark

Chemical Physics and NanoLund Lund University Lund Sweden

Funding

Agence Nationale de la Recherche · Deutsche Forschungsgemeinschaft

References (37)

Show source-provided references
1. 10.1021/nl500390f10.1021/nl500390f ↗
2. 10.1021/acs.jpclett.0c0001810.1021/acs.jpclett.0c00018 ↗
3. Large and Small Polarons in Highly Efficient and Stable Organic‐Inorganic Lead Halide Perovskite Solar Cells: A Review
4. 10.1021/acs.nanolett.6b0121810.1021/acs.nanolett.6b01218 ↗
5. J. M.Urban M. S.Spencer M.Frenzel et al. “THz‐Driven Coherent Phonon Fingerprints of Hidden Symmetry Breaking in 2D Layered Hybrid Perovskites ”https://arxiv.org/abs/2503.02529(2025).10.1002/adma.202502204 ↗
6. 10.1021/acs.jpclett.6b0056410.1021/acs.jpclett.6b00564 ↗
7. 10.1103/PhysRevLett.109.22640410.1103/PhysRevLett.109.226404 ↗
8. 10.1088/2053-1583/ace37410.1088/2053-1583/ace374 ↗
9. 10.1103/PhysRevB.97.24120110.1103/PhysRevB.97.241201 ↗
10. 10.1021/acs.chemmater.6b0084710.1021/acs.chemmater.6b00847 ↗
11. 10.1002/adma.20170348710.1002/adma.201703487 ↗
12. 10.1021/acsnano.3c1258710.1021/acsnano.3c12587 ↗
13. 10.1103/PhysRevLett.77.386510.1103/PhysRevLett.77.3865 ↗
14. 10.1016/j.cpc.2018.01.01210.1016/j.cpc.2018.01.012 ↗
15. 10.1021/acsami.0c0306110.1021/acsami.0c03061 ↗
16. 10.1038/s41467-021-25149-710.1038/s41467-021-25149-7 ↗
17. 10.1039/D2TC03111F10.1039/D2TC03111F ↗
18. 10.1038/ncomms1175510.1038/ncomms11755 ↗
19. 10.1103/PhysRevLett.124.20640210.1103/PhysRevLett.124.206402 ↗
20. 10.1103/PhysRevLett.128.17640510.1103/PhysRevLett.128.176405 ↗
21. 10.1103/PhysRevB.66.07510710.1103/PhysRevB.66.075107 ↗
22. J.Faure J.Mauchain E.Papalazarou et al. Review of Scientific Instruments83(2012):043109.10.1063/1.3700190 ↗
23. 10.1103/PhysRevMaterials.1.04540210.1103/PhysRevMaterials.1.045402 ↗
24. 10.1021/acs.nanolett.2c0000110.1021/acs.nanolett.2c00001 ↗
25. 10.1021/acsenergylett.9b0268410.1021/acsenergylett.9b02684 ↗
26. 10.1002/smll.20250097710.1002/smll.202500977 ↗
27. 10.1016/j.progsurf.2025.10077710.1016/j.progsurf.2025.100777 ↗
28. 10.1126/sciadv.abg019210.1126/sciadv.abg0192 ↗
29. 10.1002/ntls.1001010.1002/ntls.10010 ↗
30. 10.1126/science.aba102910.1126/science.aba1029 ↗
31. 10.1038/s41586-022-04977-710.1038/s41586-022-04977-7 ↗
32. 10.1021/acs.nanolett.1c0183910.1021/acs.nanolett.1c01839 ↗
33. 10.1103/PhysRevB.100.20540110.1103/PhysRevB.100.205401 ↗
34. 10.1021/acs.jpclett.0c0373110.1021/acs.jpclett.0c03731 ↗
35. 10.1021/acs.accounts.7b0043310.1021/acs.accounts.7b00433 ↗
36. 10.1038/s41467-019-08768-z10.1038/s41467-019-08768-z ↗
37. 10.1038/s41467-022-28127-910.1038/s41467-022-28127-9 ↗