• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Display Technology, Journal of >Enhancement and Saturation Phenomena on Luminous Current and Power Efficiencies of Organic Light-Emitting Devices by Attaching Microlens Array Films
【24h】

Enhancement and Saturation Phenomena on Luminous Current and Power Efficiencies of Organic Light-Emitting Devices by Attaching Microlens Array Films

机译：通过附着微透镜阵列薄膜的有机发光器件的光电流和功率效率的增强和饱和现象

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Compared to the OLED with planar substrate, the luminous current efficiency and luminous power efficiency of the device are shown 25% and 36% enhancement, respectively, by attaching the microlens array film (MAF) having a fill factor of 0.788 and a height ratio of 0.46. Both the luminous current efficiency and luminous power efficiency of the organic light-emitting device (OLED) increased monotonically with increasing the fill factor of MAFs, regardless of their arrangements. However, the curve-fitting equation of the luminous power efficiency has a negative second-order term, which shows a saturation phenomenon. Based on the experimentally verified configuration, simulation showed that the luminous current and power efficiencies also increase along with increasing height ratio and they were found to have more pronounced saturation phenomena. As for the spectral characteristics, the peak wavelength of the planar OLED spectra got blue-shift and the full-width-at-half-maximum (FWHM) of its spectra decreased with increasing the viewing angles due to the microcavity theories. After MAFs are attached to the OLED, the FWHM of the OLED spectra decreased linearly by increasing the fill factor of the MAFs. We also observe blue shifts at different viewing angles which is the evidence that the waveguiding modes are being extracted. The saturation phenomena of efficiency enhancement imply that high fill factor and large height ratio of MAFs will certainly benefit for efficiency enhancement, however, full factor cases are not always the most desirable. Optimal fill factor and height ratio, which may be less than unity, will gain the best efficiency enhancement, suffer from less color deviation, and make fabrication easier.
机译：与带有平面基板的OLED相比，通过贴装填充系数为0.788和高度比为0.788的微透镜阵列膜（MAF），器件的发光电流效率和发光功率效率分别提高了25％和36％。 0.46。无论MAF的布置如何，有机发光器件（OLED）的发光效率和发光效率都随着MAF的填充因子的增加而单调增加。然而，发光效率的曲线拟合方程具有负的二阶项，这表示饱和现象。根据经过实验验证的配置，仿真显示发光电流和功率效率也随着高度比的增加而增加，并且发现它们具有更明显的饱和现象。至于光谱特性，由于微腔理论，平面OLED光谱的峰值波长发生了蓝移，其光谱的半峰全宽（FWHM）随着视角的增加而减小。在将MAF连接到OLED后，通过增加MAF的填充因子，OLED光谱的FWHM线性降低。我们还观察到了在不同视角下的蓝移现象，这证明了正在提取波导模式。效率增强的饱和现象表明，MAF的高填充因子和高高度比肯定会受益于效率增强，但是，全因子情况并非总是最理想的。可能小于1的最佳填充因子和高度比将获得最佳的效率增强，减少颜色偏差，并使制造更容易。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：[email protected]

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号

OSZAR »