|
|||||
|
|
Considerable improvement in the stability of solution processed small molecule OLED by annealing |
|
| Authors: | GuiLin MaoZhaoxin Wu Qiang He Bo JiaoGuojin Xu Xun HouZhijian Chen Qihuang Gong |
| Affiliation: | a Key Laboratory of Photonics Technology for Information, Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, 710049, PR China b State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing, 100871, PR China c Department of UAV, Wuhan Ordnance Noncommissioned Officers Academy, Wuhan, 430075, PR China |
| Abstract: | We investigated the annealing effect on solution processed small organic molecule organic films, which were annealed with various conditions. It was found that the densities of the spin-coated (SC) films increased and the surface roughness decreased as the annealing temperature rose. We fabricated corresponding organic light emitting diodes (OLEDs) by spin coating on the same annealing conditions. The solution processed OLEDs show the considerable efficiency and stability, which were prior or equivalent to the vacuum-deposited (VD) counterparts. Our research shows that annealing process plays a key role in prolonging the lifetime of solution processed small molecule OLEDs, and the mechanism for the improvement of the device performance upon annealing was also discussed. |
| Keywords: | Organic light emitting diodes Solution processed Stability Annealing |
| 本文献已被 ScienceDirect 等数据库收录！ | |