Evaluation and prediction of color-tunable organic light-emitting diodes based on carrier/exciton adjusting interlayer
文献类型：期刊论文
| 作者 | Liu, Shengqiang1; Li, Jie1; Du, Chunlei2; Yu, Junsheng1 |
| 刊名 | Applied Physics Letters
 |
| 出版日期 | 2015 |
| 卷号 | 107期号:4页码:41109 |
| ISSN号 | 0003-6951 |
| 通讯作者 | Yu, Junsheng |
| 中文摘要 | A color tuning index (ICT) parameter for evaluating the color change capability of color-tunable organic light-emitting diodes (CT-OLEDs) was proposed and formulated. And a series of CT-OLEDs, consisting of five different carrier/exciton adjusting interlayers (C/EALs) inserted between two complementary emitting layers, were fabricated and applied to disclose the relationship between ICT and C/EALs. The result showed that the trend of electroluminescence spectra behavior in CT-OLEDs has good accordance with ICT values, indicating that the ICT parameter is feasible for the evaluation of color variation. Meanwhile, by changing energy level and C/EAL thickness, the optimized device with the widest color tuning range was based on N,N′-dicarbazolyl-3,5-benzene C/EAL, exhibiting the highest ICT value of 41.2%. Based on carrier quadratic hopping theory and exciton transfer model, two fitting ICT formulas derived from the highest occupied molecular orbital (HOMO) energy level and triplet energy level were simulated. Finally, a color tuning prediction (CTP) model was developed to deduce the ICT via C/EAL HOMO and triplet energy levels, and verified by the fabricated OLEDs with five different C/EALs. We believe that the CTP model assisted with ICT parameter will be helpful for fabricating high performance CT-OLEDs with a broad range of color tuning. © 2015 AIP Publishing LLC. |
| 英文摘要 | A color tuning index (ICT) parameter for evaluating the color change capability of color-tunable organic light-emitting diodes (CT-OLEDs) was proposed and formulated. And a series of CT-OLEDs, consisting of five different carrier/exciton adjusting interlayers (C/EALs) inserted between two complementary emitting layers, were fabricated and applied to disclose the relationship between ICT and C/EALs. The result showed that the trend of electroluminescence spectra behavior in CT-OLEDs has good accordance with ICT values, indicating that the ICT parameter is feasible for the evaluation of color variation. Meanwhile, by changing energy level and C/EAL thickness, the optimized device with the widest color tuning range was based on N,N′-dicarbazolyl-3,5-benzene C/EAL, exhibiting the highest ICT value of 41.2%. Based on carrier quadratic hopping theory and exciton transfer model, two fitting ICT formulas derived from the highest occupied molecular orbital (HOMO) energy level and triplet energy level were simulated. Finally, a color tuning prediction (CTP) model was developed to deduce the ICT via C/EAL HOMO and triplet energy levels, and verified by the fabricated OLEDs with five different C/EALs. We believe that the CTP model assisted with ICT parameter will be helpful for fabricating high performance CT-OLEDs with a broad range of color tuning. © 2015 AIP Publishing LLC. |
| 学科主题 | Color - Composite films - Electroluminescence - Electron energy levels - Light - Light emitting diodes - Molecular orbitals - Tuning |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358924200009 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/7320]  |
| 专题 | 光电技术研究所_微电子装备总体研究室（四室） |
| 作者单位 | 1.State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu, China 2.Chengdu Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China |
| 推荐引用方式 GB/T 7714 | Liu, Shengqiang,Li, Jie,Du, Chunlei,et al. Evaluation and prediction of color-tunable organic light-emitting diodes based on carrier/exciton adjusting interlayer[J]. Applied Physics Letters,2015,107(4):41109. |
| APA | Liu, Shengqiang,Li, Jie,Du, Chunlei,&Yu, Junsheng.(2015).Evaluation and prediction of color-tunable organic light-emitting diodes based on carrier/exciton adjusting interlayer.Applied Physics Letters,107(4),41109. |
| MLA | Liu, Shengqiang,et al."Evaluation and prediction of color-tunable organic light-emitting diodes based on carrier/exciton adjusting interlayer".Applied Physics Letters 107.4(2015):41109. |
入库方式： OAI收割
来源：光电技术研究所
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