Journal
NANOMATERIALS
Volume 11, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/nano11112869
Keywords
OLED; top emitting; hole injection; Al anode; ITO anode; HATCN; efficiency; native oxide; microdisplay; Si substrate
Categories
Funding
- Competency Development Program for Industry Specialists of the Korean Ministry of Trade, Industry and Energy (MOTIE)
- (Next-generation Display Expert Training Project for Innovation Process and Equipment, Materials Engineers) [P0012453]
Ask authors/readers for more resources
A top-emitting OLED device with a pure aluminum anode was proposed and fabricated for high-resolution microdisplays. By utilizing HATCN as the hole-injection layer material, the efficiency of the device was improved by 35 cd/A at 1000 nit, reaching 78% compared to normal OLEDs with ITO anodes.
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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
