Radiative Recombination Processes in Halide Perovskites Observed by Light Emission Voltage Modulated Spectroscopy
Impact
Scholar |
Other documents of the author: S. Sánchez, Rafael; Villanueva-Antolí, Alexis; Bou, Agustín; Ruiz-Murillo, Marta; Mora-Sero, Ivan; Bisquert, Juan
Metadata
Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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INVESTIGACIONMetadata
Title
Radiative Recombination Processes in Halide Perovskites Observed by Light Emission Voltage Modulated SpectroscopyAuthor (s)
Date
2023Publisher
WileyISSN
0935-9648; 1521-4095Bibliographic citation
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.202207993Type
info:eu-repo/semantics/articlePublisher version
https://onlinelibrary.wiley.com/doi/10.1002/adma.202207993Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
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. [-]
Is part of
Advanced Materials, 2023Funder Name
Ministerio de Ciencia, Innovación y Universidades | Generalitat Valenciana
Funder ID
http://dx.doi.org/10.13039/501100011033
Project code
MICIU/ICTI2017-2020/PID2019-107348GB-100 | MICIU/ICTI2017-2020/PID2019-107314RB-I00 | CIPROM/2021/078
Rights
info:eu-repo/semantics/openAccess
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- INAM_Articles [521]