期刊
NANOSCALE
卷 6, 期 5, 页码 2642-2648出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr05331h
关键词
-
类别
资金
- Ministry of Trade, Industry and Energy of Korea [10033636]
- KIMM (Korea Institute of Machinery Materials) [SC0940]
- National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [R11-2005-065]
We demonstrated a nano-hole array (NHA) embedded structure that was fabricated for organic light emitting diodes (OLEDs) using a robust reverse transfer process. The NHA structure is proposed in this study as a strategy for maximizing the diffraction strength of two dimensional photonic crystals (PCs) by engineering vacuum nano-holes inside a dielectric slab. The electroluminescence (EL) intensity of the OLED was improved by more than twice. Such an optical enhancement was evaluated by using the angular dependence of photoluminescence (PL). The FDTD simulation was carried out to optimize the NHA structure for extraction of the emission induced from both vertical and horizontal dipoles. We explored the effect of the NHA structure on the extraction improvement converted from waveguide mode by measuring EL intensities of the devices with a hemisphere lens. In addition, the transfer process employed in this study yielded extremely low surface roughness, and thus outstanding electrical characteristics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据