Staff View: Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance

Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance

This study investigates a high-density of silver (Ag) nanoparticles deposition in a two-dimensional array via a plasma-assisted hot-filament evaporation system on indium tin oxide (ITO) anodes for phosphorescent organic light-emitting diodes (PhOLEDs). The nanoparticles deposition process was conduc...

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Main Authors:	Al-Masoodi, Abtisam Hasan Hamood, Talik, Noor Azrina, Goh, Boon Tong, Mohd. Sarjidan, Mohd. Arif, Al-Masoodi, Ahmed H. H., Abd Majid, Wan Haliza
Format:	Article
Published:	Elsevier 2021
Subjects:	QC Physics QD Chemistry TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.um.edu.my/28264/
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spelling	my.um.eprints.282642022-04-07T04:19:21Z http://eprints.um.edu.my/28264/ Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance Al-Masoodi, Abtisam Hasan Hamood Talik, Noor Azrina Goh, Boon Tong Mohd. Sarjidan, Mohd. Arif Al-Masoodi, Ahmed H. H. Abd Majid, Wan Haliza QC Physics QD Chemistry TA Engineering (General). Civil engineering (General) This study investigates a high-density of silver (Ag) nanoparticles deposition in a two-dimensional array via a plasma-assisted hot-filament evaporation system on indium tin oxide (ITO) anodes for phosphorescent organic light-emitting diodes (PhOLEDs). The nanoparticles deposition process was conducted at substrate temperatures of 25, 80 and 140 degrees C. It is observed through atomic force microscopy that the deposited Ag nanoparticles size increases with higher substrate temperature. The surface plasmon resonances (SPRs) of the deposited Ag nanoparticles are influenced by particle size and interparticle spacing. The visible light transmittance of PhOLED was improved in the wavelength range from 500 to 600 nm at 25 and 80 degrees C conditions. The luminance efficiency of PhOLEDs with deposited Ag nanoparticles increased by 11.07, 5.03, and 70.30% with rising temperature compared to the standard PhOLED (no Ag nanoparticle) with colour stability. The enhancement in efficiency resulted from a coupling between the SPR of Ag nanoparticles and excitons in the emitting layer. The maximum efficiency was also due to a mirror-reflected emission effect via the larger Ag nanoparticles size. Moreover, the positive charges from the inner layer of the anode were enhanced by the high-density inserted Ag nanoparticles at 25 and 80 degrees C, increasing the hole carrier injection. The performance and mechanism of a PhOLED modified with Ag nanoparticles are discussed. Elsevier 2021-12-30 Article PeerReviewed Al-Masoodi, Abtisam Hasan Hamood and Talik, Noor Azrina and Goh, Boon Tong and Mohd. Sarjidan, Mohd. Arif and Al-Masoodi, Ahmed H. H. and Abd Majid, Wan Haliza (2021) Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance. Applied Surface Science, 570. ISSN 0169-4332, DOI https://doi.org/10.1016/j.apsusc.2021.151280 <https://doi.org/10.1016/j.apsusc.2021.151280>. 10.1016/j.apsusc.2021.151280
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	QC Physics QD Chemistry TA Engineering (General). Civil engineering (General)
spellingShingle	QC Physics QD Chemistry TA Engineering (General). Civil engineering (General) Al-Masoodi, Abtisam Hasan Hamood Talik, Noor Azrina Goh, Boon Tong Mohd. Sarjidan, Mohd. Arif Al-Masoodi, Ahmed H. H. Abd Majid, Wan Haliza Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance
description	This study investigates a high-density of silver (Ag) nanoparticles deposition in a two-dimensional array via a plasma-assisted hot-filament evaporation system on indium tin oxide (ITO) anodes for phosphorescent organic light-emitting diodes (PhOLEDs). The nanoparticles deposition process was conducted at substrate temperatures of 25, 80 and 140 degrees C. It is observed through atomic force microscopy that the deposited Ag nanoparticles size increases with higher substrate temperature. The surface plasmon resonances (SPRs) of the deposited Ag nanoparticles are influenced by particle size and interparticle spacing. The visible light transmittance of PhOLED was improved in the wavelength range from 500 to 600 nm at 25 and 80 degrees C conditions. The luminance efficiency of PhOLEDs with deposited Ag nanoparticles increased by 11.07, 5.03, and 70.30% with rising temperature compared to the standard PhOLED (no Ag nanoparticle) with colour stability. The enhancement in efficiency resulted from a coupling between the SPR of Ag nanoparticles and excitons in the emitting layer. The maximum efficiency was also due to a mirror-reflected emission effect via the larger Ag nanoparticles size. Moreover, the positive charges from the inner layer of the anode were enhanced by the high-density inserted Ag nanoparticles at 25 and 80 degrees C, increasing the hole carrier injection. The performance and mechanism of a PhOLED modified with Ag nanoparticles are discussed.
format	Article
author	Al-Masoodi, Abtisam Hasan Hamood Talik, Noor Azrina Goh, Boon Tong Mohd. Sarjidan, Mohd. Arif Al-Masoodi, Ahmed H. H. Abd Majid, Wan Haliza
author_facet	Al-Masoodi, Abtisam Hasan Hamood Talik, Noor Azrina Goh, Boon Tong Mohd. Sarjidan, Mohd. Arif Al-Masoodi, Ahmed H. H. Abd Majid, Wan Haliza
author_sort	Al-Masoodi, Abtisam Hasan Hamood
title	Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance
title_short	Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance
title_full	Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance
title_fullStr	Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance
title_full_unstemmed	Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance
title_sort	effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance
publisher	Elsevier
publishDate	2021
url	http://eprints.um.edu.my/28264/
_version_	1735409549341360128
score	13.211869

Effect of silver nanoparticles deposited on indium tin oxide by plasma-assisted hot-filament evaporation on phosphorescent organic light-emitting diode performance

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