Improved color purity and electroluminescent efficiency obtained by modulating thicknesses and evaporation rates of hole block and electron transport layers
文献类型：期刊论文
| 作者 | Zhou LA ; Deng RP ; Feng J ; Li XN ; Li XY ; Zhang HJ |
| 刊名 | applied surface science
 |
| 出版日期 | 2011 |
| 卷号 | 257期号:7页码:3033-3038 |
| 关键词 | LIGHT-EMITTING DEVICES ORGANIC ELECTROPHOSPHORESCENCE EUROPIUM COMPLEX TRANSIENT ANALYSIS ENERGY-TRANSFER DIODES MECHANISMS MORPHOLOGY MOLECULES EMISSION |
| ISSN号 | 0169-4332 |
| 通讯作者 | zhang hj |
| 中文摘要 | in this work, a series of electroluminescent (el) devices based on trivalent europium (eu(3+)) complex eu(tta)(3)phen (tta = thenoyltrifluoroacetone, phen = 1,10-phenanthroline) were fabricated by selecting 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (bcp) and tris(8-hydroxyquinoline) aluminum (alq(3)) as hole block and electron transport materials, respectively. interestingly, we found the transport of electrons decreases gradually with increasing thicknesses and evaporation rates of bcp and alq(3) layers. analyzing carrier distribution and el spectra, we conclude that appropriately modulating the thicknesses and evaporation rates is an efficient way to decrease the accumulation of electrons in hbl, thus suppressing the el of hole block material. on the other hand, decreasing the transport of electrons can also facilitate the balance of holes and electrons on eu(tta)(3)phen molecules, thus further enhancing the el efficiency. as a result, pure eu(3+) emission with the efficiency as high as 8.49 cd/a was realized by controlling the thicknesses and evaporation rates of bcp and alq(3) layers to be 30 nm and 0.10 nm/s, 40 nm and 0.10 nm/s, respectively. crown copyright (c) 2010 published by elsevier b.v. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000285963200102 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44886]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhou LA,Deng RP,Feng J,et al. Improved color purity and electroluminescent efficiency obtained by modulating thicknesses and evaporation rates of hole block and electron transport layers[J]. applied surface science,2011,257(7):3033-3038. |
| APA | Zhou LA,Deng RP,Feng J,Li XN,Li XY,&Zhang HJ.(2011).Improved color purity and electroluminescent efficiency obtained by modulating thicknesses and evaporation rates of hole block and electron transport layers.applied surface science,257(7),3033-3038. |
| MLA | Zhou LA,et al."Improved color purity and electroluminescent efficiency obtained by modulating thicknesses and evaporation rates of hole block and electron transport layers".applied surface science 257.7(2011):3033-3038. |
入库方式： OAI收割
来源：长春应用化学研究所
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