Efficiency Enhancement of Tandem Organic Light-Emitting Devices Fabricated Utilizing an 1,4,5,8,9,11-Hexaazatriphenylene-Hexacarbonitrile Charge-Generation Layer
- Title
- Efficiency Enhancement of Tandem Organic Light-Emitting Devices Fabricated Utilizing an 1,4,5,8,9,11-Hexaazatriphenylene-Hexacarbonitrile Charge-Generation Layer
- Author
- 김태환
- Keywords
- Tandem Organic Light-Emitting Device; Electrical Property; Optical Property; Charge-Generation Mechanism; Charge-Generation Layer
- Issue Date
- 2015-10
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 15, Page. 7717-7721
- Abstract
- The electrical and the optical properties of tandem organic light-emitting devices (OLEDs) with stacked electroluminescence units were investigated to clarify the charge-generation mechanisms due to the existence of a charge-generation layer (CGL). The current density of the current limited devices with an 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN) CGL was 35% higher than that of devices with a tungsten-oxide (WO3) CGL. The maximum current density of the current limited devices with a HAT-CN CGL was as high as 259 mA/cm(2). The brightness of the tandem OLEDs with a HAT-CN CGL was 15% higher than that of the tandem OLEDs with a WO3 CGL due to an increase in the current density. The charge-generation mechanisms of tandem OLEDs with a CGL were described on the basis of the experimental results.
- URI
- http://www.ingentaconnect.com/content/asp/jnn/2015/00000015/00000010/art00056http://hdl.handle.net/20.500.11754/28403
- ISSN
- 1533-4880; 1533-4899
- DOI
- 10.1166/jnn.2015.11180
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML