您的位置: 专家智库 > >

国家教育部博士点基金(20093223120003)

作品数:4 被引量:4H指数:1
相关作者:黄维陈淑芬郭旭解令海杨洋更多>>
相关机构:南京邮电大学南京工程学院更多>>
发文基金:国家教育部博士点基金国家自然科学基金江苏省高等学校自然科学基金更多>>
相关领域:电子电信更多>>

文献类型

  • 4篇中文期刊文章

领域

  • 4篇电子电信

主题

  • 2篇有机发光
  • 2篇有机发光二极...
  • 2篇二极管
  • 2篇发光
  • 2篇发光二极管
  • 2篇白光
  • 2篇白光有机发光...
  • 1篇增透
  • 1篇增透膜
  • 1篇ORGANI...
  • 1篇STACK
  • 1篇WHITE
  • 1篇ANGLE
  • 1篇DEVICE
  • 1篇EXTREM...
  • 1篇IR
  • 1篇ZNS
  • 1篇ANTI-R...
  • 1篇STABLE
  • 1篇CONTRA...

机构

  • 2篇南京邮电大学
  • 1篇南京工程学院

作者

  • 2篇陈淑芬
  • 2篇黄维
  • 1篇石乃恩
  • 1篇李雪
  • 1篇钱妍
  • 1篇邵茗
  • 1篇杨洋
  • 1篇解令海
  • 1篇邵秋萍
  • 1篇郭旭

传媒

  • 2篇Chines...
  • 1篇物理学报
  • 1篇光谱学与光谱...

年份

  • 1篇2014
  • 3篇2012
4 条 记 录,以下是 1-4
排序方式:
高效、色度稳定的顶发射白光有机发光二极管
2014年
顶发射白光有机发光二极管(white organic light-emitting diodes,WOLEDs)因可与有源驱动电路结合实现大开口率和高分辨率,因而在白光照明和全彩显示中有着良好的应用前景.本文制备了红/蓝双磷光发光层的顶发射WOLEDs,通过在红光层与蓝光层间插入电子阻挡层tris(phenypyrazole)iridium(Ir(ppz)3),降低了对红光掺杂浓度的要求,红光掺杂浓度的提高不仅降低了对制备工艺的要求,提高了工艺可重复性,而且改善了WOLEDs的效率与色度稳定性。分析了色度稳定的原因,优化了红光和蓝光磷光客体的掺杂浓度,制备出发光效率达到7.9cd·A-1的顶发射WOLED,其色坐标位于暖白光区,在87~2 402cd·m-2亮度范围内色度很稳定,仅变化(0.006,0.01)。
李雪邵秋萍陈淑芬黄维
关键词:白光有机发光二极管
High-contrast top-emitting organic light-emitting devices
2012年
In this paper we report on a high-contrast top-emitting organic light-emitting device utilizing a moderate-reflection contrast-enhancement stack and a high refractive index anti-reflection layer.The contrast-enhancement stack consists of a thin metal anode layer,a dielectric bilayer,and a thick metal underlayer.The resulting device,with the optimized contrast-enhancement stack thicknesses of Ni(30 nm)/MgF 2(62 nm)/ZnS(16 nm)/Ni(20 nm) and the 25-nm-thick ZnS anti-reflection layer,achieves a luminous reflectance of 4.01% in the visible region and a maximum current efficiency of 0.99 cd/A(at 62.3 mA/cm 2) together with a very stable chromaticity.The contrast ratio reaches 561:1 at an on-state brightness of 1000 cd/m^2 under an ambient illumination of 140 lx.In addition,the anti-reflection layer can also enhance the transmissivity of the cathode and improve light out-coupling by the effective restraint of microcavity effects.
陈淑芬陈春燕杨洋谢军黄维石弘颖程凡
关键词:ANTI-REFLECTION
Efficient top-emitting white organic light emitting device with an extremely stable chromaticity and viewing-angle被引量:1
2012年
In this paper,we report on the fabrication of a top-emitting electrophosphorescent p-i-n white organic lightemitting diode on the basis of a low-reflectivity Sm/Ag semi-transparent cathode together with a thickness-optimized ZnS out-coupling layer.With a 24-nm out-coupling layer,the reflectivity of the cathode is reduced to 8% at 492 nm and the mean reflectivity is 24% in the visible area.By introducing an efficient electron blocking layer tris(1phenylpyrazolato,N,C2 ')iridium(III)(Ir(ppz) 3) to confine the exciton recombination area,the current efficiency and the colour stability of the device are effectively improved.A white emission with the Ir(ppz) 3 layer exhibits a maximum current efficiency of 9.8 cd/A at 8 V,and the Commission Internationale de L'Eclairage(CIE) chromaticity coordinates are almost constant during a large voltage change of 6 V-11 V.There is almost no viewing angular dependence in the spectrum when the viewing angle is no more than 45,with a CIE x,y coordinate variation of only(±0.0025,±0.0008).Even at a large viewing angle(75),the CIE x,y coordinate change is as small as(±0.0087,±0.0013).
邵茗郭旭陈淑芬范曲立黄维
基于ZnS增透膜的顶发射白光有机发光二极管被引量:4
2012年
顶发射白光有机发光二极管(TEWOLED)在白光照明和全彩显示中有着良好的应用前景,克服顶发射器件中的微腔效应是制备光电性能良好的TEWOLED的前提.使用具有高折射率的ZnS作为增透膜改善金属阴极在蓝光波段的透射率,降低其反射性,从而有效抑制了微腔的影响.同时利用转移矩阵理论和宽角干涉方法分别对阴极结构和蓝光发光层位置进行了优化,最终获得了高效、色纯度良好、色度随视角变化小的TEWOLED.最高亮度和效率分别达到9213 cd/m^2和3 cd/A,色坐标位于白光区且接近白光等能点,同时具有良好的视角稳定性,在0°-60°范围内色坐标仅变化(0.02,0).
陈淑芬邵茗郭旭钱妍石乃恩解令海杨洋黄维
关键词:白光有机发光二极管增透膜
共1页<1>
聚类工具0