Radiative Recombination Processes in Halide Perovskites Observed by Light Emission Voltage Modulated Spectroscopy
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Metadatos
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INVESTIGACIONMetadatos
Título
Radiative Recombination Processes in Halide Perovskites Observed by Light Emission Voltage Modulated SpectroscopyAutoría
Fecha de publicación
2023Editor
WileyISSN
0935-9648; 1521-4095Cita bibliográfica
Sánchez, R. S., Villanueva-Antolí, A., Bou, A., Ruiz-Murillo, M., Mora-Seró, I., Bisquert, J., Radiative Recombination Processes in Halide Perovskites Observed by Light Emission Voltage Modulated Spectroscopy. Adv. Mater. 2023, 2207993. https://doi.org/10.1002/adma.202207993Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://onlinelibrary.wiley.com/doi/10.1002/adma.202207993Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The kinetics of light emission in halide perovskite light-emitting diodes (LEDs) and solar cells is composed of a radiative recombination of voltage-injected carriers mediated by additional steps such as carrier ... [+]
The kinetics of light emission in halide perovskite light-emitting diodes (LEDs) and solar cells is composed of a radiative recombination of voltage-injected carriers mediated by additional steps such as carrier trapping, redistribution of injected carriers, and photon recycling that affect the observed luminescence decays. These processes are investigated in high-performance halide perovskite LEDs, with external quantum efficiency (EQE) and luminance values higher than 20% and 80 000 Cd m−2, by measuring the frequency-resolved emitted light with respect to modulated voltage through a new methodology termed light emission voltage modulated spectroscopy (LEVS). The spectra are shown to provide detailed information on at least three different characteristic times. Essentially, new information is obtained with respect to the electrical method of impedance spectroscopy (IS), and overall, LEVS shows promise to capture internal kinetics that are difficult to be discerned by other techniques. [-]
Publicado en
Advanced Materials, 2023Entidad financiadora
Ministerio de Ciencia, Innovación y Universidades | Generalitat Valenciana
Identificador de la entidad financiadora
http://dx.doi.org/10.13039/501100011033
Código del proyecto o subvención
MICIU/ICTI2017-2020/PID2019-107348GB-100 | MICIU/ICTI2017-2020/PID2019-107314RB-I00 | CIPROM/2021/078
Derechos de acceso
info:eu-repo/semantics/openAccess
Aparece en las colecciones
- INAM_Articles [521]