Enhanced Hole Injection Characteristics of a Top Emission Organic Light-Emitting Diode with Pure Aluminum Anode

A top emitting organic light-emitting diode (OLED) device with pure aluminum (Al) anode for high-resolution microdisplays was proposed and fabricated. The low work function of the Al anode, even with a native oxide formed on the Al anode surface, increases the energy barrier of the interface between...

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Autores principales:	Chan Young Park, Byoungdeog Choi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	OLED top emitting hole injection Al anode ITO anode HATCN Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/d4f57f7dc58548839d3fc2fd84c9e2f2
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id	oai:doaj.org-article:d4f57f7dc58548839d3fc2fd84c9e2f2
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spelling	oai:doaj.org-article:d4f57f7dc58548839d3fc2fd84c9e2f22021-11-25T18:30:29ZEnhanced Hole Injection Characteristics of a Top Emission Organic Light-Emitting Diode with Pure Aluminum Anode10.3390/nano111128692079-4991https://doaj.org/article/d4f57f7dc58548839d3fc2fd84c9e2f22021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2869https://doaj.org/toc/2079-4991A top emitting organic light-emitting diode (OLED) device with pure aluminum (Al) anode for high-resolution microdisplays was proposed and fabricated. The low work function of the Al anode, even with a native oxide formed on the Al anode surface, increases the energy barrier of the interface between the anode and hole injection layer, and has poor hole-injection properties, which causes the low efficiency of the device. To enhance the hole-injection characteristics of the Al anode, we applied hexaazatriphenylene hexacarbonitrile (HATCN) as the hole-injection layer material. The proposed OLED device with a pure Al anode and native oxide on the anode surface improved efficiency by up to 35 cd/A at 1000 nit, which is 78% of the level of normal OLEDs with indium tin oxide (ITO) anode.Chan Young ParkByoungdeog ChoiMDPI AGarticleOLEDtop emittinghole injectionAl anodeITO anodeHATCNChemistryQD1-999ENNanomaterials, Vol 11, Iss 2869, p 2869 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	OLED top emitting hole injection Al anode ITO anode HATCN Chemistry QD1-999
spellingShingle	OLED top emitting hole injection Al anode ITO anode HATCN Chemistry QD1-999 Chan Young Park Byoungdeog Choi Enhanced Hole Injection Characteristics of a Top Emission Organic Light-Emitting Diode with Pure Aluminum Anode
description	A top emitting organic light-emitting diode (OLED) device with pure aluminum (Al) anode for high-resolution microdisplays was proposed and fabricated. The low work function of the Al anode, even with a native oxide formed on the Al anode surface, increases the energy barrier of the interface between the anode and hole injection layer, and has poor hole-injection properties, which causes the low efficiency of the device. To enhance the hole-injection characteristics of the Al anode, we applied hexaazatriphenylene hexacarbonitrile (HATCN) as the hole-injection layer material. The proposed OLED device with a pure Al anode and native oxide on the anode surface improved efficiency by up to 35 cd/A at 1000 nit, which is 78% of the level of normal OLEDs with indium tin oxide (ITO) anode.
format	article
author	Chan Young Park Byoungdeog Choi
author_facet	Chan Young Park Byoungdeog Choi
author_sort	Chan Young Park
title	Enhanced Hole Injection Characteristics of a Top Emission Organic Light-Emitting Diode with Pure Aluminum Anode
title_short	Enhanced Hole Injection Characteristics of a Top Emission Organic Light-Emitting Diode with Pure Aluminum Anode
title_full	Enhanced Hole Injection Characteristics of a Top Emission Organic Light-Emitting Diode with Pure Aluminum Anode
title_fullStr	Enhanced Hole Injection Characteristics of a Top Emission Organic Light-Emitting Diode with Pure Aluminum Anode
title_full_unstemmed	Enhanced Hole Injection Characteristics of a Top Emission Organic Light-Emitting Diode with Pure Aluminum Anode
title_sort	enhanced hole injection characteristics of a top emission organic light-emitting diode with pure aluminum anode
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d4f57f7dc58548839d3fc2fd84c9e2f2
work_keys_str_mv	AT chanyoungpark enhancedholeinjectioncharacteristicsofatopemissionorganiclightemittingdiodewithpurealuminumanode AT byoungdeogchoi enhancedholeinjectioncharacteristicsofatopemissionorganiclightemittingdiodewithpurealuminumanode
_version_	1718411106222866432

Enhanced Hole Injection Characteristics of a Top Emission Organic Light-Emitting Diode with Pure Aluminum Anode

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