Abstract
Nano and micro-patterns (dual patterns) were introduced on a glass substrate as an extraction layer to enhance the light extraction efficiency of white organic light-emitting diodes (WOLEDs). The dual-patterned glass was fabricated by thermal evaporation, direct printing, and reactive ion etching. The combination of nano- and micro-structures imparted highest current density and luminance to the dual-patterned WOLED without electrical degradation. Additionally, the dual-patterned WOLED exhibited higher current and power efficiencies compared to that of the nano- and micro-patterned WOLEDs, which increased by 21% and 27% at 1 mA/cm2, respectively, as compared to that of the reference.
Original language | English |
---|---|
Pages (from-to) | 201-205 |
Number of pages | 5 |
Journal | Organic Electronics: physics, materials, applications |
Volume | 57 |
DOIs | |
Publication status | Published - 2018 Jun 1 |
Keywords
- 3-D structure
- External scattering layer
- Light extraction efficiency
- Nano and micro pattern
- Nanoimprint lithography
- OLED
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
- Electrical and Electronic Engineering