| 论文简介 |
properties, electrical and optical characteristics of the proposed structure device are investigated. Non-uniform size and geometry of nano-pinnacles are prepared by wet-etching, and the most frequent geometry is ~230×140nm pyramids. With help of the nano-pinnacle structure, the electric field strength distributed on treated surface of the nano-pinnacle sample is enhanced by ~4 times, resulting in the increase of the density of conductive paths by 3.6 times. By exploring the electrical and optical results, the onset voltage of light emission is decreased by 60% from −7.6V to −3.4V, and the emission intensity and efficiency are improved by ~9 times and ~8 times, respectively compared with the traditional structure device of SSI-LEDs. |
(创新港)
