Electroluminescence enhancement of polymer light emitting diodes through surface plasmons by Ag nanoplates

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Abstract

This paper reports a study on the surface plasmon effect of Ag nanoplates on electroluminescent property of polymer light emitting diodes. The diode is a single layer light emitting device made of poly [9,9-di-(2-ethylhexyl)-fluorenyl-2,7-diyl] (PEHF). 5 wt.% of Ag nanoplates were incorporated into the PEHF layer. The results showed that the electroluminescence intensity of the diodes is increased by 51.85%, compared with the device without the Ag nanoplates. The enhancement is due to the coupling process between the Ag surface plasmon with the emission light from the PEHF. The occurrence of the coupling process was proved firstly based on the fact that the exciton lifetime of the PEHF:Ag layer is shorter than that without Ag, as measured by time-resolved photoluminescence spectroscopy. Secondly, the PEHF photoluminescence peak at 425 nm is overlaping with the surface plasmon absorption peak of Ag nanoplates.

Original languageEnglish
Pages (from-to)711-713
Number of pages3
JournalActa Physica Polonica A
Volume129
Issue number4
DOIs
Publication statusPublished - 1 Apr 2016

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plasmons
electroluminescence
light emitting diodes
augmentation
polymers
diodes
photoluminescence
light emission
excitons
occurrences
life (durability)
spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

@article{6050afe335944fc29689b3bbbd404638,
title = "Electroluminescence enhancement of polymer light emitting diodes through surface plasmons by Ag nanoplates",
abstract = "This paper reports a study on the surface plasmon effect of Ag nanoplates on electroluminescent property of polymer light emitting diodes. The diode is a single layer light emitting device made of poly [9,9-di-(2-ethylhexyl)-fluorenyl-2,7-diyl] (PEHF). 5 wt.{\%} of Ag nanoplates were incorporated into the PEHF layer. The results showed that the electroluminescence intensity of the diodes is increased by 51.85{\%}, compared with the device without the Ag nanoplates. The enhancement is due to the coupling process between the Ag surface plasmon with the emission light from the PEHF. The occurrence of the coupling process was proved firstly based on the fact that the exciton lifetime of the PEHF:Ag layer is shorter than that without Ag, as measured by time-resolved photoluminescence spectroscopy. Secondly, the PEHF photoluminescence peak at 425 nm is overlaping with the surface plasmon absorption peak of Ag nanoplates.",
author = "Aziz, {T. H T} and {Mat Salleh}, Muhamad and Bakar, {N. A.} and Akrajas, {Ali Umar} and {Abd Rahman}, {Mohd Yusri}",
year = "2016",
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doi = "10.12693/APhysPolA.129.711",
language = "English",
volume = "129",
pages = "711--713",
journal = "Acta Physica Polonica A",
issn = "0587-4246",
publisher = "Polish Academy of Sciences Publishing House",
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T1 - Electroluminescence enhancement of polymer light emitting diodes through surface plasmons by Ag nanoplates

AU - Aziz, T. H T

AU - Mat Salleh, Muhamad

AU - Bakar, N. A.

AU - Akrajas, Ali Umar

AU - Abd Rahman, Mohd Yusri

PY - 2016/4/1

Y1 - 2016/4/1

N2 - This paper reports a study on the surface plasmon effect of Ag nanoplates on electroluminescent property of polymer light emitting diodes. The diode is a single layer light emitting device made of poly [9,9-di-(2-ethylhexyl)-fluorenyl-2,7-diyl] (PEHF). 5 wt.% of Ag nanoplates were incorporated into the PEHF layer. The results showed that the electroluminescence intensity of the diodes is increased by 51.85%, compared with the device without the Ag nanoplates. The enhancement is due to the coupling process between the Ag surface plasmon with the emission light from the PEHF. The occurrence of the coupling process was proved firstly based on the fact that the exciton lifetime of the PEHF:Ag layer is shorter than that without Ag, as measured by time-resolved photoluminescence spectroscopy. Secondly, the PEHF photoluminescence peak at 425 nm is overlaping with the surface plasmon absorption peak of Ag nanoplates.

AB - This paper reports a study on the surface plasmon effect of Ag nanoplates on electroluminescent property of polymer light emitting diodes. The diode is a single layer light emitting device made of poly [9,9-di-(2-ethylhexyl)-fluorenyl-2,7-diyl] (PEHF). 5 wt.% of Ag nanoplates were incorporated into the PEHF layer. The results showed that the electroluminescence intensity of the diodes is increased by 51.85%, compared with the device without the Ag nanoplates. The enhancement is due to the coupling process between the Ag surface plasmon with the emission light from the PEHF. The occurrence of the coupling process was proved firstly based on the fact that the exciton lifetime of the PEHF:Ag layer is shorter than that without Ag, as measured by time-resolved photoluminescence spectroscopy. Secondly, the PEHF photoluminescence peak at 425 nm is overlaping with the surface plasmon absorption peak of Ag nanoplates.

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