ZnO纳米晶掺杂的有机电致发光特性

Electroluminescence of Organic MEH-PPV with ZnO Nanocrystal

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摘要本文实验研究了ZnO纳米晶对有机共轭聚合物MEH-PPV电致发光光谱特性的影响.研究结果表明,对于ITO/PEDOT:PSS/MEH-PPV:ZnO/Al/Ag结构的发光器件,ZnO纳米晶的掺杂有效降低了电子的注入势垒,降低了发光器件的启亮电压,提高了载流子复合效率.随着ZnO纳米晶掺杂比例的增加,有机MEHPPV发光谱主峰585nm发生明显蓝移,波长移动18nm,而位于长波段615nm的肩峰则不受掺杂纳米材料的影响. In order to study the influence of ZnO nanocrystal on the EL spectrum of MEH-PPV,we prepared the device of ITO / PEDOT： PSS / MEH-PPV： ZnO / Al / Ag. Doping of ZnO effectively reduced the electron injection barrier and the turning-on voltage. In addition,the doped device increased the charge carrier composite efficiency. With the increase of ZnO doped proportion,the EL main peak of MEH-PPV occurred obviously 18 nm blue shift distance. ZnO nanocrystal had not effect on the shoulder peak at 615 nm.

作者李宁陈笑蔡园园李长伟王义全

机构地区中央民族大学理学院

出处《中央民族大学学报（自然科学版）》 2016年第2期92-96,共5页 Journal of Minzu University of China(Natural Sciences Edition)

基金国家自然科学基金项目(No.11204387 11374378) 教育部科学技术研究重点项目(No.212205)

关键词电致发光有机共轭聚合物 ZNO纳米晶 electroluminescence organic conjugatd polymers ZnO nanocrystal

分类号 O436 [机械工程—光学工程]

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中央民族大学学报（自然科学版）

2016年第2期

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ZnO纳米晶掺杂的有机电致发光特性

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