High efficiency blue phosphorescent organic light-emitting diodes with a multiple quantum well structure for reduced efficiency roll-off
文献类型：期刊论文
| 作者 | Yang, Xiao1; Zhuang, Shaoqing1; Qiao, Xianfeng1; Mu, Guangyuan1; Wang, Lei1; Chen, Jiangshan2; Ma, Dongge2 |
| 刊名 | OPTICS EXPRESS
 |
| 出版日期 | 2012-10-22 |
| 卷号 | 20期号:22页码:24411-24417 |
| ISSN号 | 1094-4087 |
| DOI | 10.1364/OE.20.024411 |
| 英文摘要 | Highly efficient blue phosphorescent organic light-emitting diodes (PhOLEDs) with a multiple quantum well (MQW) structure were investigated. A peak external quantum efficiency (EQE) of 20.31%, current efficiency of 40.31 cd/A and power efficiency of 30.14 lm/W were achieved in the optimized device with two quantum wells (QWs). The obtained efficiencies are much higher than those of the control devices without QWs. More importantly, the MQW devices exhibit low efficiency roll-off. At a high luminance of 5000 cd/m(2), the EQE still keeps at a high value of 18.86% in the optimized MQW device, and the efficiency roll-off is only 7.14%, which is lower than that of 30.78% in the control device (reduced from 16.05% to 11.11%). Meanwhile, the maximum power efficiency of the optimized MQW device was also exhibited more than 54.80% improvement compared to the control device. The high efficiency and low efficiency roll-off are attributed to the effective confinement of charge carriers and excitons by the state-of-the-art MQWs. (C) 2012 Optical Society of America |
| 语种 | 英语 |
| WOS记录号 | WOS:000310443400033 |
| 出版者 | OPTICAL SOC AMER |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47971]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, Xiao |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xiao,Zhuang, Shaoqing,Qiao, Xianfeng,et al. High efficiency blue phosphorescent organic light-emitting diodes with a multiple quantum well structure for reduced efficiency roll-off[J]. OPTICS EXPRESS,2012,20(22):24411-24417. |
| APA | Yang, Xiao.,Zhuang, Shaoqing.,Qiao, Xianfeng.,Mu, Guangyuan.,Wang, Lei.,...&Ma, Dongge.(2012).High efficiency blue phosphorescent organic light-emitting diodes with a multiple quantum well structure for reduced efficiency roll-off.OPTICS EXPRESS,20(22),24411-24417. |
| MLA | Yang, Xiao,et al."High efficiency blue phosphorescent organic light-emitting diodes with a multiple quantum well structure for reduced efficiency roll-off".OPTICS EXPRESS 20.22(2012):24411-24417. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。