聚对二甲苯薄膜的制备及其在有机电致发光二极管中的应用研究

胡永茂; 李汝恒; 何鋆; 张学清; 李茂琼; 朱艳

聚对二甲苯薄膜的制备及其在有机电致发光二极管中的应用研究

1.
大理学院工程学院,云南大理 671003;
2.
复旦大学应用表面物理国家重点实验室,上海 200433;
3.
昆明理工大学材料科学与工程学院,云南昆明 650093

详细信息

作者简介:
胡永茂（1974-），男，云南洱源人，博士，副教授，主要从事半导体功能材料与器件研究工作。 Email:yongmaohu@163.com

中图分类号: TN202；O469
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出版历程
- 刊出日期: 2014-07-14

Preparation of Parylene-N ultrathin films and their applications in organic light emitting diodes

1.
School of Engineering,Dali University,Dali 671003,China;
2.
State Key Laboratoryof Surface Physics,Fudan University,Shanghai 200433,China;
3.
Faculty of Materials Scienceand Engineering,Kunming University of Science and Technology,Kunming 650093,China

摘要

摘要: 使用自制的分子束源制备了聚对二甲苯（ParyleneN，PPXN）薄膜。通过对该分子束源的设计和不断优化，PPXN薄膜可以在室温、10-3 Pa的较低反应压强下以0.01 nm/s~0.02 nm/s的速率沉积聚合。用红外透射光谱和原子力显微镜测量了PPXN薄膜的成分和表面形貌。结果表明，所制备的薄膜成分为PPXN，薄膜呈波浪状、无尖刺的表面形貌。准确控制的PPXN薄膜在有机电致发光二极管中用作缓冲层，对载流子的注入和传输进行调控，有效地改善了器件内部的载流子平衡。最优化结构的器件较未插入PPXN缓冲层的器件，电流效率提高80%以上。
- 聚对二甲苯 /
- 分子束源 /
- 缓冲层 /
- 有机电致发光二极管 /
- 电流效率
Abstract: Ultrathin poly-p-xylylene (PPXN) films were prepared by using a home-made Knudsen cell (KC). By special design and optimization of the KC, the growth rate was well controlled in the range of 0.01nm/s -0.02 nm/s at room temperature in a relatively lower reaction pressure of 10-3 Pa. The PPXN films were identified by infrared (IR) spectra. The morphology of PPXN films were measured by atomic force microscope (AFM). It was resulted that the PPXN surface showed a spike-free undulated morphology. The well controlled PPXN thin films were used as buffers in organic light emitting diodes to control carrier injection and transport, and improvements of more than 80% in device current efficiency were achieved.
- Parylene-N /
- Knudsen cell /
- buffer layer /
- organic light emitting devices /
- current efficiency

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参考文献(1)

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聚对二甲苯薄膜的制备及其在有机电致发光二极管中的应用研究

作者简介:
胡永茂（1974-），男，云南洱源人，博士，副教授，主要从事半导体功能材料与器件研究工作。 Email:yongmaohu@163.com

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Preparation of Parylene-N ultrathin films and their applications in organic light emitting diodes

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聚对二甲苯薄膜的制备及其在有机电致发光二极管中的应用研究

作者简介: 胡永茂（1974-），男，云南洱源人，博士，副教授，主要从事半导体功能材料与器件研究工作。 Email:yongmaohu@163.com

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Preparation of Parylene-N ultrathin films and their applications in organic light emitting diodes

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作者简介:
胡永茂（1974-），男，云南洱源人，博士，副教授，主要从事半导体功能材料与器件研究工作。 Email:yongmaohu@163.com