Managing excitons for high performance hybrid white organic light-emitting diodes by using a simple planar heterojunction interlayer
文献类型：期刊论文
| 作者 | Shi, Changsheng1; Sun, Ning2; Wu, Zhongbin1; Chen, Jiangshan3; Ahamad, Tansir4; Alshehri, Saad M.4; Ma, Dongge1,3,4 |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2018-01-08 |
| 卷号 | 112期号:2 |
| ISSN号 | 0003-6951 |
| DOI | 10.1063/1.5000894 |
| 英文摘要 | High performance hybrid white organic light-emitting diodes (WOLEDs) were fabricated by inserting a planar heterojunction interlayer between the fluorescent and phosphorescent emitting layers (EMLs). The maximum external quantum efficiency (EQE) of 19.3%, current efficiency of 57.1 cdA(-1), and power efficiency (PE) of 66.2 mu m W-1 were achieved in the optimized device without any light extraction enhancement. At the luminance of 1000 cdm(-2), the EQE and PE remained as high as 18.9% and 60 mu m W-1, respectively, showing the reduced efficiency-roll. In order to disclose the reason for such high performance, the distribution of excitons was analyzed by using ultra-thin fluorescent and phosphorescent layers as sensors. It was found that the heterojunction interlayer can efficiently separate the singlet and triplet excitons, preventing the triplet excitons from being quenched by the fluorescent emitter. The introduction of the heterojunction interlayer between the fluorescent and phosphorescent EMLs should offer a simple and efficient route to fabricate the high performance hybrid WOLEDs. Published by AIP Publishing. |
| 语种 | 英语 |
| WOS记录号 | WOS:000422965000041 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45383]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ma, Dongge |
| 作者单位 | 1.Univ Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Umea Univ, Dept Phys, Organ Photon & Elect Grp, SE-90187 Umea, Sweden 3.South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China 4.King Saud Univ, Dept Chem, Coll Sci, Riyadh 11451, Saudi Arabia |
| 推荐引用方式 GB/T 7714 | Shi, Changsheng,Sun, Ning,Wu, Zhongbin,et al. Managing excitons for high performance hybrid white organic light-emitting diodes by using a simple planar heterojunction interlayer[J]. APPLIED PHYSICS LETTERS,2018,112(2). |
| APA | Shi, Changsheng.,Sun, Ning.,Wu, Zhongbin.,Chen, Jiangshan.,Ahamad, Tansir.,...&Ma, Dongge.(2018).Managing excitons for high performance hybrid white organic light-emitting diodes by using a simple planar heterojunction interlayer.APPLIED PHYSICS LETTERS,112(2). |
| MLA | Shi, Changsheng,et al."Managing excitons for high performance hybrid white organic light-emitting diodes by using a simple planar heterojunction interlayer".APPLIED PHYSICS LETTERS 112.2(2018). |
入库方式： OAI收割
来源：化学研究所
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