Small Molecule-Modified Hole Transport Layer Targeting Low Turn-On-Voltage, Bright, and Efficient Full-Color Quantum Dot Light Emitting Diodes
文献类型：期刊论文
| 作者 | Li, Jingling1,2,3; Liang, Zheng2,3; Su, Qiucheng2,3 ; Jin, Hu2,3,4; Wang, Kelai; Xu, Gang1,2,3; Xu, Xueqing1,2,3,4
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| 刊名 | ACS APPLIED MATERIALS & INTERFACES
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| 出版日期 | 2018-01-31 |
| 卷号 | 10期号:4页码:3865-3873 |
| ISSN号 | 1944-8244 |
| 关键词 | quantum dot full-color QD-LEDs composite HTL double HTLs interface modification |
| DOI | 10.1021/acsami.7b16261 |
| 通讯作者 | Xu, Xueqing(xuxq@ms.giec.ac.cn) |
| 英文摘要 | For an organic inorganic hybrid quantum dot light-emitting diode (QD-LED), enhancing hole injection into the emitter for charge "balance is a priority to achieve efficient device performance. Aiming at this) we employ N,N'-bis(3-methylphenyl)-N,N'-bis(phenyl)benzidine (TPD) as the additional hole transport material which was mixed with poly(9-vinylcarbaaole) (PVK) to form a composite hole transport layer (HTL) or was employed to, construct a TPD/PVK bilayer structure. Enabled by this TPD modification, the green QD-LED (at a wavelength of 515 nm) exhibits a subband gap turn-on voltage of 2.3 V and a highest luminance up to 56 157 cd/m(2). Meanwhile, such TPD modification is also beneficial to acquire efficient blue and red QD-LEDs. In particular, the external quantum efficiencies (EQEs) for these optimized full-color QD-LEDs are 8.62, 9.22, and 13.40%, which are 3-4 times higher than those of their pure PVK-based counterparts. Revealed by the electrochemical impedance spectroscopy, the improved electroluminescent efficiency is ascribable to the reductions of recombination resistance and charge-transfer resistance. The prepared QD-LEDs surpass the EQE values achieved in previous reports, considering devices with small-molecule-modified HTLs. This work offers a general but simple and very effective approach to realize the low turn-on-voltage) bright, and efficient full-color QD-LEDs via this solution-processable HTL modification. |
| WOS关键词 | DOPED ZNO NANOPARTICLES ; HIGHLY EFFICIENT ; SOLAR-CELLS ; IMPROVED PERFORMANCE ; DEVICES ; ELECTROLUMINESCENCE ; POLYMER ; PHOTOLUMINESCENCE ; NANOCRYSTALS ; INJECTION |
| 资助项目 | National Natural Science Foundation of China[21273241] ; Natural Science Foundation of Guangdong Province[2015A030310501] ; Project on the Collaborative Innovation and Environmental Construction Platform of Guangdong Province[2014A050503051] ; Key Project on Synergy Collaborative Innovation of Guangzhou City[201704030069] ; Key Project of Science and Technology of Dongguan City |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000424728800081 |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Project on the Collaborative Innovation and Environmental Construction Platform of Guangdong Province ; Key Project on Synergy Collaborative Innovation of Guangzhou City ; Key Project of Science and Technology of Dongguan City |
| 源URL | [http://ir.giec.ac.cn/handle/344007/23483]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Xu, Xueqing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Dongguan Univ Technol, Dongguan 523808, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jingling,Liang, Zheng,Su, Qiucheng,et al. Small Molecule-Modified Hole Transport Layer Targeting Low Turn-On-Voltage, Bright, and Efficient Full-Color Quantum Dot Light Emitting Diodes[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(4):3865-3873. |
| APA | Li, Jingling.,Liang, Zheng.,Su, Qiucheng.,Jin, Hu.,Wang, Kelai.,...&Xu, Xueqing.(2018).Small Molecule-Modified Hole Transport Layer Targeting Low Turn-On-Voltage, Bright, and Efficient Full-Color Quantum Dot Light Emitting Diodes.ACS APPLIED MATERIALS & INTERFACES,10(4),3865-3873. |
| MLA | Li, Jingling,et al."Small Molecule-Modified Hole Transport Layer Targeting Low Turn-On-Voltage, Bright, and Efficient Full-Color Quantum Dot Light Emitting Diodes".ACS APPLIED MATERIALS & INTERFACES 10.4(2018):3865-3873. |
入库方式： OAI收割
来源：广州能源研究所
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