Solution-Processed Small Molecules As Mixed Host for Highly Efficient Blue and White Phosphorescent Organic Light-Emitting Diodes
文献类型：期刊论文
| 作者 | Fu, Qiang; Chen, Jiangshan; Shi, Changsheng; Ma, Dongge |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2012-12-01 |
| 卷号 | 4期号:12页码:6579-6586 |
| 关键词 | Solution-processed Small Molecules Mixed-host Phosphorescence Blue And White Oleds |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/am301703a |
| 英文摘要 | The widely used hole-transporting host 4,4',4"-tris(N-carbazolyl)-triphenylamine (TCTA) blended with either a hole-transporting or an electron-transporting small-molecule material as a mixed-host was investigated in the phosphorescent organic light-emitting diodes (OLEDs) fabricated by the low-cost solution-process. The performance of the solution-processed OLEDs was found to be very sensitive to the composition of the mixed-host systems. The incorporation of the hole-transporting 1,1-bis[(di-4-tolylamino)phenyl]cyclohexane (TAPC) into TCTA as the mixed-host was demonstrated to greatly reduce the driving voltage and thus enhance the efficiency due to the improvement of hole injection and transport. On the basis of the mixed-host of TCTA:TAPC, we successfully fabricated low driving voltage and high efficiency blue and white phosphorescent OLEDs. A maximum forward viewing current efficiency of 32.0 cd/A and power efficiency of 25.9 lm/W were obtained in the optimized mixed-host blue OLED, which remained at 29.6 cd/A and 19.1 lm/W at the luminance of 1000 cd/m(2) with a driving voltage as low as 4.9 V. The maximum efficiencies of 37.1 cd/A and 32.1 lm/W were achieved in a single emissive layer white OLED based on the TCTA:TAPC mixed-host. Even at 1000 cd/m(2), the efficiencies still reach 34.2 cd/A and 23.3 lm/W and the driving voltage is only 4.6 V, which is comparable to those reported from the state-of-the-art vacuum-evaporation deposited white OLEDs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000313149800027 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49231]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Chen, Jiangshan |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Grad Sch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu, Qiang,Chen, Jiangshan,Shi, Changsheng,et al. Solution-Processed Small Molecules As Mixed Host for Highly Efficient Blue and White Phosphorescent Organic Light-Emitting Diodes[J]. ACS APPLIED MATERIALS & INTERFACES,2012,4(12):6579-6586. |
| APA | Fu, Qiang,Chen, Jiangshan,Shi, Changsheng,&Ma, Dongge.(2012).Solution-Processed Small Molecules As Mixed Host for Highly Efficient Blue and White Phosphorescent Organic Light-Emitting Diodes.ACS APPLIED MATERIALS & INTERFACES,4(12),6579-6586. |
| MLA | Fu, Qiang,et al."Solution-Processed Small Molecules As Mixed Host for Highly Efficient Blue and White Phosphorescent Organic Light-Emitting Diodes".ACS APPLIED MATERIALS & INTERFACES 4.12(2012):6579-6586. |
入库方式： OAI收割
来源：化学研究所
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