Doped polyaniline-hybridized tungsten oxide nanocrystals as hole injection layers for efficient organic light-emitting diodes
Doped polyaniline-hybridized tungsten oxide nanocrystals as hole injection layers for efficient organic light-emitting diodes
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掺杂聚苯胺杂化氧化钨纳米晶作为高效有机发光二极管的空穴注入层
DOI：
10.1039/c8tc01005f
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发表时间：
2018-07
影响因子：
6.4
通讯作者：
Can-Zhong Lu
中科院分区：
文献类型：
--
作者：
Wenjuan Zhu;Xu-Lin Chen;Jianfei Chang;Rong-Min Yu;Haoran Li;Dong Liang;Xiao-Yuan Wu;Yuansheng Wang;Can-Zhong Lu
将溶液处理的氧化钨纳米晶（WO 3 NCs）与导电聚合物聚苯胺：聚苯乙烯磺酸盐（PANI：PSS）杂化，作为空穴注入层（HIL）引入到有机发光二极管（OLED）中。与没有HIL的常规器件和使用原始WO 3 NC作为HIL的器件相比，这些器件表现出高得多的电流效率（CE）和功率效率（PE）。这种增强的器件性能主要归因于由于ITO阳极和有机半导体层之间的界面处的能级对准的改善而促进的空穴注入。此外，PANI：PSS还能有效地减少WO 3纳米晶的表面缺陷，提高其成膜性能，且不影响器件的导电性能。这些结果表明，聚苯胺：PSS-WO 3可能是一个有前途的候选人在光电器件的电荷注入层。
Solution-processed tungsten oxide nanocrystals (WO3 NCs) hybridized with a conductive polymer, polyaniline:poly(styrene sulfonate) (PANI:PSS), are introduced as a hole injection layer (HIL) in organic light-emitting diodes (OLEDs). These devices exhibited much higher current efficiency (CE) and power efficiency (PE) compared to regular devices without HILs and devices using pristine WO3 NCs as HILs. This enhanced device performance is mainly attributed to the facilitated hole injection due to the improvement in the energy level alignment at the interface between the ITO anode and the organic semiconductor layer. Besides, PANI:PSS can efficiently reduce surface defects and enhance the film-forming properties of WO3 NCs without affecting the device conductivity. These results suggest that PANI:PSS–WO3 could be a promising candidate for charge injection layers in optoelectronic devices.
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17.1
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通讯作者：
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影响因子：
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作者：
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