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Using magneto-electroluminescence as a fingerprint to identify the spin polarization and spin–orbit coupling of magnetic nanoparticle doped polymer light emitting diodes

The spin polarization and spin–orbit coupling (SOC) in polymer light emitting diodes (PLEDs) with the active layer doped with Fe(3)O(4) nanoparticles (NPs) were identified through magneto-electroluminescence (MEL). By comparing the MEL characteristics such as linewidth and magnitude between PLEDs wi...

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Detalles Bibliográficos
Autores principales: Jia, Weiyao, Ikoma, Tadaaki, Chen, Lixiang, Zhu, Hongqiang, Tang, Xiantong, Qu, Fenlan, Xiong, Zuhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064273/
https://www.ncbi.nlm.nih.gov/pubmed/35521377
http://dx.doi.org/10.1039/c9ra01501a
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author Jia, Weiyao
Ikoma, Tadaaki
Chen, Lixiang
Zhu, Hongqiang
Tang, Xiantong
Qu, Fenlan
Xiong, Zuhong
author_facet Jia, Weiyao
Ikoma, Tadaaki
Chen, Lixiang
Zhu, Hongqiang
Tang, Xiantong
Qu, Fenlan
Xiong, Zuhong
author_sort Jia, Weiyao
collection PubMed
description The spin polarization and spin–orbit coupling (SOC) in polymer light emitting diodes (PLEDs) with the active layer doped with Fe(3)O(4) nanoparticles (NPs) were identified through magneto-electroluminescence (MEL). By comparing the MEL characteristics such as linewidth and magnitude between PLEDs with and without Fe(3)O(4) dopant, we confirmed the existence of spin polarization, but ruled out the existence of SOC. Although the spin polarization is positive to electroluminescence, the brightness–current characteristics suggested that the current efficiency of the doped PLED does not improve. We attributed it to the current leakage caused by the Fe(3)O(4) NPs in the active layer. This work is beneficial for us to further understand the effect of magnetic nanoparticle doping on the dynamic behavior of excitons and polaron pairs in organic semiconductor devices.
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spelling pubmed-90642732022-05-04 Using magneto-electroluminescence as a fingerprint to identify the spin polarization and spin–orbit coupling of magnetic nanoparticle doped polymer light emitting diodes Jia, Weiyao Ikoma, Tadaaki Chen, Lixiang Zhu, Hongqiang Tang, Xiantong Qu, Fenlan Xiong, Zuhong RSC Adv Chemistry The spin polarization and spin–orbit coupling (SOC) in polymer light emitting diodes (PLEDs) with the active layer doped with Fe(3)O(4) nanoparticles (NPs) were identified through magneto-electroluminescence (MEL). By comparing the MEL characteristics such as linewidth and magnitude between PLEDs with and without Fe(3)O(4) dopant, we confirmed the existence of spin polarization, but ruled out the existence of SOC. Although the spin polarization is positive to electroluminescence, the brightness–current characteristics suggested that the current efficiency of the doped PLED does not improve. We attributed it to the current leakage caused by the Fe(3)O(4) NPs in the active layer. This work is beneficial for us to further understand the effect of magnetic nanoparticle doping on the dynamic behavior of excitons and polaron pairs in organic semiconductor devices. The Royal Society of Chemistry 2019-05-21 /pmc/articles/PMC9064273/ /pubmed/35521377 http://dx.doi.org/10.1039/c9ra01501a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Jia, Weiyao
Ikoma, Tadaaki
Chen, Lixiang
Zhu, Hongqiang
Tang, Xiantong
Qu, Fenlan
Xiong, Zuhong
Using magneto-electroluminescence as a fingerprint to identify the spin polarization and spin–orbit coupling of magnetic nanoparticle doped polymer light emitting diodes
title Using magneto-electroluminescence as a fingerprint to identify the spin polarization and spin–orbit coupling of magnetic nanoparticle doped polymer light emitting diodes
title_full Using magneto-electroluminescence as a fingerprint to identify the spin polarization and spin–orbit coupling of magnetic nanoparticle doped polymer light emitting diodes
title_fullStr Using magneto-electroluminescence as a fingerprint to identify the spin polarization and spin–orbit coupling of magnetic nanoparticle doped polymer light emitting diodes
title_full_unstemmed Using magneto-electroluminescence as a fingerprint to identify the spin polarization and spin–orbit coupling of magnetic nanoparticle doped polymer light emitting diodes
title_short Using magneto-electroluminescence as a fingerprint to identify the spin polarization and spin–orbit coupling of magnetic nanoparticle doped polymer light emitting diodes
title_sort using magneto-electroluminescence as a fingerprint to identify the spin polarization and spin–orbit coupling of magnetic nanoparticle doped polymer light emitting diodes
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064273/
https://www.ncbi.nlm.nih.gov/pubmed/35521377
http://dx.doi.org/10.1039/c9ra01501a
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