基于PEDOT:PSS掺杂MoO3修饰有机电致发光器件性能的研究  

Study on the performance of organic light-emitting devices with PEDOT:PSS doped MoO3

作　　者：刘莹[1,2] 綦旺 郝琪 朱恩伟 高林[1,2] 苏斌 车广波[1,2] LIU Ying;QI Wang;HAO Qi;ZHU En-wei;GAO Lin;SU Bin;CHE Guang-bo(Key Laboratory of Environmental Materials and Pollution Control,Jilin Normal University,Jilin Siping 136000,China;College of Environmental science and Engineering,Jilin Normal University,Jilin Siping 136000,China)

机构地区：[1]吉林师范大学环境材料与污染控制重点实验室,吉林四平136000 [2]吉林师范大学环境科学与工程学院,吉林四平136000

出　　处：《光电子．激光》2020年第6期563-568,共6页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(61405071,51603086);吉林省科技厅(20170520143JH,20180623042TC,20180101181JC,20160520131JH);吉林省教育厅(2016-218);四平市科技局(2017056)资助项目.

摘　　要：有机电致发光器件因具有质量轻、亮度高、柔性、宽视角和响应速度快等优点已经成为下一代平板显示和照明领域的潜在主流技术。本文证实了MoO3掺杂于PEDOT:PSS作为空穴注入层时,可以改善器件性能。与未掺杂器件相比,掺杂器件的亮度和效率显著提高,启亮电压降低0.5 V。AFM,透光性和单空穴器件实验表明,当在ITO和空穴传输层之间插入PEDOT:PSS:MoO3后,由于修饰了ITO表面膜形貌,增加了绿光区透光性以及降低了空穴注入层电阻从而提高了器件的性能。Organic light-emitting devices have become the potential mainstream te chnology of the next generation flat panel display and solid state lighting with unique advantages such as light weight,high brightness,flexibility,wide view ing angle and fast response.Hole injection improvement in organic light-emitti n g devices with PEDOT:PSS doped MoO3as a hole inject layer on indium tin oxide(ITO)has been demonstrated.The luminance and the current efficiency are signifi cantly enhanced,as well as the turn-on voltage is reduced by 0.5V compared to undoped device.Results of AFM,transmission and hole-only devices studies reve a l that the enhanced performance of devices is attributed to the modification of the ITO surface,increased the transmittance of green light area and the reduced resistance of hole injection layer by the insertion of the PEDOT:PSS:MoO3lay er between the ITO and hole-transporting layer.

关 键 词：有机电致发光器件 空穴注入层 掺杂 膜形貌 

分 类 号：O649.5[理学—物理化学]