Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr3 Single Crystals
Impacte
Scholar |
Altres documents de l'autoria: García-Batlle, Marisé; Mayén Guillén, Javier; Chapran, Marian; Baussens, Oriane; Zaccaro, Julien; Verilhac, Jean‐Marie; Gros-Daillon, Eric; Guerrero, Antonio; Almora Rodríguez, Osbel; Garcia-Belmonte, Germà
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
comunitat-uji-handle4:
INVESTIGACIONMetadades
Títol
Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr3 Single CrystalsAutoria
Data de publicació
2022-03-11Editor
American Chemical SocietyISSN
2380-8195Cita bibliogràfica
García-Batlle, M.; Mayén Guillén, J.; Chapran, M.; Baussens, O.; Zaccaro, J.; Verilhac, J. M.; Gros-Daillon, M.; Guerrero, M.; Almora, O.; Garcia-Belmonte, G. Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr3 Single Crystals. ACS Energy Letters 2022 7 (3), 946-951. DOI: 10.1021/acsenergylett.1c02578Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://pubs.acs.org/doi/abs/10.1021/acsenergylett.1c02578Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
The optoelectronic properties of halide perovskite materials have fostered their utilization in many applications. Unravelling their working mechanisms remains challenging because of their mixed ionic–electronic ... [+]
The optoelectronic properties of halide perovskite materials have fostered their utilization in many applications. Unravelling their working mechanisms remains challenging because of their mixed ionic–electronic conductive nature. By registering, with high reproducibility, the long-time current transients of a set of single-crystal methylammonium lead tribromide samples, the ion migration process was proved. Sample biasing experiments (ionic drift), with characteristic times exhibiting voltage dependence as ∝ V–3/2, is interpreted with an ionic migration model obeying a ballistic-like voltage-dependent mobility (BVM) regime of space-charge-limited current. Ionic kinetics effectively modify the long-time electronic current, while the steady-state electronic currents’ behavior is nearly ohmic. Using the ionic dynamic doping model (IDD) for the recovering current at zero bias (ion diffusion), the ionic mobility is estimated to be ∼10–6 cm2 V–1 s–1. Our findings suggest that ionic currents are negligible in comparison to the electronic currents; however, they influence them via changes in the charge density profile. [-]
Publicat a
ACS Energy Letters 2022 7 (3), 946-951Entitat finançadora
Generalitat Valenciana
Codi del projecte o subvenció
GRISOLIAP/2018/073
Proyecto de investigación
info:eu-repo/grantAgreement/EC/H2020/871336Drets d'accés
info:eu-repo/semantics/openAccess
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