journal article·2019-09-13Open access

Role of Electron–Phonon Coupling in the Thermal Evolution of Bulk Rashba-Like Spin-Split Lead Halide Perovskites Exhibiting Dual-Band Photoluminescence

Julian A. Steele, Pascal Puech, Bartomeu Monserrat, Bo Wu, Ruo Xi Yang, Thomas Kirchartz, Haifeng Yuan, Guillaume Fleury, David Giovanni, Eduard Fron, Masoumeh Keshavarz, Elke Debroye, Guofu Zhou, Tze Chien Sum, Aron Walsh, Johan Hofkens, Maarten B. J. Roeffaers

ACS Energy Letters· Volume 4· Issue 9

Abstract

The optoelectronic properties of lead halide perovskites strongly depend on their underlying crystal symmetries and dynamics, sometimes exhibiting a dual photoluminescence (PL) emission via Rashba-like effects. Here we exploit spin- and temperature-dependent PL to study single-crystal APbBr3 (A = Cs and methylammonium; CH3NH3) and evaluate the peak energy, intensity, and line width evolutions of their dual emission. Both perovskites exhibit temperature trends governed by two temperature regimes—above and below approximately 100 K—which impose different carrier scattering and radiative recombination dynamics. With increasing temperature, high-energy optical phonons activate near 100 K to drive energy splitting of the dual bands and induce line width broadening via electron–phonon coupling, with a stronger coupling constant inferred for carriers recombining by the spin-split indirect bands, compared to the direct ones. We find that the unusual thermal evolutions of all-inorganic and hybrid bulk lead bromide perovskites are comparable, suggesting A-site independence and the dominance of dynamic effects, and are best understood within a framework that accounts for Rashba-like effects.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Optical properties and cooling technologies in crystalline materials · Solid-state spectroscopy and crystallography

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

Affiliations

cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium

CEMES/CNRS, Université de Toulouse, 29, rue Jeanne Marvig, 31055 Toulouse, France

TCM Group, Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom

Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, People’s Republic of China

Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States

IEK5-Photovoltaics, Forschungszentrum Jülich, 52425 Jülich, Germany

Faculty of Engineering and CENIDE, University of Duisburg−Essen, Carl-Benz-Straße 199, 47057 Duisburg, Germany

Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium

Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore

Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom

Global E3 Institute and Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea

Funding

KU Leuven · Cambridge Philosophical Society · Vlaamse regering · National Natural Science Foundation of China · Hercules Foundation · Engineering and Physical Sciences Research Council · State Administration of Foreign Experts Affairs · Ministry of Education of the People's Republic of China · Ministry of Education - Singapore · Belgian Federal Science Policy Office · National Research Foundation Singapore · Fonds Wetenschappelijk Onderzoek · FP7 Ideas: European Research Council · Impuls- und Vernetzungsfonds der Helmholtz Gemeinschaft · Guangdong Provincial Key Laboratory of Optical Information Materials and Technology · Winton Programme for the Physics of Sustainability · Robinson College

References (63)

Show source-provided references
1. 10.1038/nphoton.2014.13410.1038/nphoton.2014.134 ↗
2. 10.1038/s41467-018-05514-910.1038/s41467-018-05514-9 ↗
3. 10.1021/acs.jpclett.6b0280010.1021/acs.jpclett.6b02800 ↗
4. 10.1038/nmat497310.1038/nmat4973 ↗
5. 10.1126/sciadv.170146910.1126/sciadv.1701469 ↗
6. 10.1126/sciadv.170121710.1126/sciadv.1701217 ↗
7. 10.1021/acs.accounts.5b0043110.1021/acs.accounts.5b00431 ↗
8. 10.1126/science.aaf957010.1126/science.aaf9570 ↗
9. 10.1021/acs.jpclett.5b0246210.1021/acs.jpclett.5b02462 ↗
10. 10.1126/science.124398210.1126/science.1243982 ↗
11. 10.1038/s41467-019-08326-710.1038/s41467-019-08326-7 ↗
12. 10.1073/pnas.180542211510.1073/pnas.1805422115 ↗
13. 10.1103/PhysRevB.98.08510810.1103/PhysRevB.98.085108 ↗
14. 10.1021/acs.nanolett.5b0185410.1021/acs.nanolett.5b01854 ↗
15. 10.1039/C6EE03474H10.1039/C6EE03474H ↗
16. 10.1021/acs.nanolett.7b0224810.1021/acs.nanolett.7b02248 ↗
17. 10.1103/PhysRevLett.117.12640110.1103/PhysRevLett.117.126401 ↗
18. 10.1002/adma.20180666110.1002/adma.201806661 ↗
19. Monserrat B. · arXiv:1711.06274 [cond-mat] · 2017
20. 10.1038/s41467-018-04212-w10.1038/s41467-018-04212-w ↗
21. 10.1021/acsenergylett.8b0129710.1021/acsenergylett.8b01297 ↗
22. 10.1063/1.495502810.1063/1.4955028 ↗
23. 10.1126/sciadv.160115610.1126/sciadv.1601156 ↗
24. 10.1021/cg400645t10.1021/cg400645t ↗
25. 10.1103/PhysRevLett.118.13600110.1103/PhysRevLett.118.136001 ↗
26. 10.1103/PhysRevB.96.07530810.1103/PhysRevB.96.075308 ↗
27. 10.1002/adfm.20180094510.1002/adfm.201800945 ↗
28. 10.1103/PhysRevB.92.23521010.1103/PhysRevB.92.235210 ↗
29. 10.1021/acs.jpclett.6b0140410.1021/acs.jpclett.6b01404 ↗
30. 10.1039/C7CP02568H10.1039/C7CP02568H ↗
31. 10.1021/acs.cgd.6b0076410.1021/acs.cgd.6b00764 ↗
32. 10.1038/ncomms1175510.1038/ncomms11755 ↗
33. 10.1103/PhysRev.97.66010.1103/PhysRev.97.660 ↗
34. Bychkov Yu A · JETP Lett · 1984 · 39 · 78
35. 10.1103/PhysRevMaterials.1.05420110.1103/PhysRevMaterials.1.054201 ↗
36. 10.1103/PhysRevLett.102.18640310.1103/PhysRevLett.102.186403 ↗
37. 10.1021/acs.jpclett.6b0256010.1021/acs.jpclett.6b02560 ↗
38. 10.1063/1.271334610.1063/1.2713346 ↗
39. 10.1103/PhysRevB.92.14430810.1103/PhysRevB.92.144308 ↗
40. 10.1021/acs.jpclett.7b0297910.1021/acs.jpclett.7b02979 ↗
41. 10.1021/acsnano.7b0503310.1021/acsnano.7b05033 ↗
42. 10.1038/s41467-019-09057-510.1038/s41467-019-09057-5 ↗
43. 10.1002/adfm.20150234010.1002/adfm.201502340 ↗
44. 10.1063/1.492280410.1063/1.4922804 ↗
45. 10.1021/acs.jpclett.8b0316410.1021/acs.jpclett.8b03164 ↗
46. 10.1103/PhysRevB.35.917410.1103/PhysRevB.35.9174 ↗
47. 10.1103/PhysRevB.86.19520810.1103/PhysRevB.86.195208 ↗
48. 10.1103/PhysRevB.19.359310.1103/PhysRevB.19.3593 ↗
49. 10.1103/PhysRevB.41.301710.1103/PhysRevB.41.3017 ↗
50. 10.1016/j.jlumin.2018.02.03610.1016/j.jlumin.2018.02.036 ↗
51. 10.1063/1.501841310.1063/1.5018413 ↗
52. 10.1016/j.mtener.2017.09.01010.1016/j.mtener.2017.09.010 ↗
53. 10.1103/PhysRevLett.121.08640210.1103/PhysRevLett.121.086402 ↗
54. 10.1103/PhysRevB.33.551210.1103/PhysRevB.33.5512 ↗
55. 10.1021/acs.jpclett.8b0172910.1021/acs.jpclett.8b01729 ↗
56. 10.1039/C8NR07022A10.1039/C8NR07022A ↗
57. 10.1016/j.jlumin.2018.02.03610.1016/j.jlumin.2018.02.036 ↗
58. 10.1021/acs.jpcc.7b0630110.1021/acs.jpcc.7b06301 ↗
59. 10.1364/OL.41.00382110.1364/OL.41.003821 ↗
60. 10.1038/nature2514710.1038/nature25147 ↗
61. 10.1021/acs.nanolett.9b0146710.1021/acs.nanolett.9b01467 ↗
62. 10.1126/science.aau739210.1126/science.aau7392 ↗
63. 10.1038/s41563-019-0364-x10.1038/s41563-019-0364-x ↗