Remarkable increase in the efficiency of n,n-'-dimethylquinacridone dye heavily doped organic light emitting diodes under high current density
文献类型：期刊论文
| 作者 | Liu, Huihui1,2; Yan, Fei1,2; Li, Wenlian1,2; Chu, Bei1,2; Su, Wenming1,2; Su, Zisheng1,2; Wang, Junbo1,2; Hu, Zhizhi3; Zhang, Zhiqiang3 |
| 刊名 | Applied physics letters
 |
| 出版日期 | 2010-02-22 |
| 卷号 | 96期号:8页码:3 |
| 关键词 | Dyes Excitons Organic light emitting diodes |
| ISSN号 | 0003-6951 |
| DOI | 10.1063/1.3332478 |
| 通讯作者 | Li, wenlian(wllioel@yahoo.com.cn) |
| 英文摘要 | We demonstrated a remarkable rise of external quantum efficiency (eqe) of n,n-'-dimethylquinacridone (dmqa) heavily doped organic light-emitting diodes with tris-(8-hydroxyquinolinato) aluminum as host at large current density. the eqe of 5.0 wt % dmqa doped device increased 42% as the current density rises from 20 to 300 ma/cm(2). at 300 ma/cm(2), the eqe of 1.8 wt % dmqa doped device equals to that of the optimal concentration (0.8 wt %) doped device, which behaves a flat trend curve with the increase of current density. whereas, another green fluorescent dye (coumarin6) doped device with the same structure indicates straight falling dependence of eqe on increasing current density. the eqe increase is attributed to the dissociation of excimer species formed by interaction of higher concentration dmqa molecules into dmqa monomer excitons under high current density. |
| WOS关键词 | DEVICES |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000275027200080 |
| 出版者 | AMER INST PHYSICS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2406798 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Wenlian |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Excited State Proc, Changchun 130033, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Anshan Univ Sci & Technol, Opt Photoelect Mat & Res Dev Ctr, Anshan 114044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Huihui,Yan, Fei,Li, Wenlian,et al. Remarkable increase in the efficiency of n,n-'-dimethylquinacridone dye heavily doped organic light emitting diodes under high current density[J]. Applied physics letters,2010,96(8):3. |
| APA | Liu, Huihui.,Yan, Fei.,Li, Wenlian.,Chu, Bei.,Su, Wenming.,...&Zhang, Zhiqiang.(2010).Remarkable increase in the efficiency of n,n-'-dimethylquinacridone dye heavily doped organic light emitting diodes under high current density.Applied physics letters,96(8),3. |
| MLA | Liu, Huihui,et al."Remarkable increase in the efficiency of n,n-'-dimethylquinacridone dye heavily doped organic light emitting diodes under high current density".Applied physics letters 96.8(2010):3. |
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来源：中国科学院大学
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