首页> 外文期刊>Science and Technology of Advanced Materials >Improved lifetime of an OLED using aluminum (Ⅲ) tris (8-hydroxyquinolate)
【24h】

Improved lifetime of an OLED using aluminum (Ⅲ) tris (8-hydroxyquinolate)

机译:使用三(8-羟基喹啉)铝(Ⅲ)改善OLED的寿命

获取原文
获取原文并翻译 | 示例
           

摘要

Improved lifetime with enhanced efficiency of an Alq_3 based OLED was realized by the co-evaporation of hexamethylbenzene (HMB). Two different solvated crystalline systems of Alq_3, Alq_3(C_7H_8)_(1/2), Alq_3(C_2H_5OH), were synthesized to investigate the effect of optically inactive materials on the emission properties of Alq_3. Clathrate solvents perturb the excited electronic states of Alq_3 so that the incorporated materials in OLEDs should be chemically and optically inactive to control polymorphs. HMB acts as a carrier blocker for both electrons and holes. However, Alq_3 may be stabilized from Joule heat if the Joule heat is efficiently consumed as the vibrational/rotational energy of HMB. Consequently, the self-quenching and the crystallization of Alq_3 are effectively suppressed by the HMB, resulting in prolonged operating time and enhanced efficiency for Alq_3-OLEDs.
机译:通过六甲基苯(HMB)的共蒸发实现了Alq_3基OLED寿命的延长和效率的提高。合成了两种不同的Alq_3,Alq_3(C_7H_8)_(1/2),Alq_3(C_2H_5OH)的溶剂化晶体体系,以研究光学惰性材料对Alq_3发射性质的影响。包合物溶剂会扰动Alq_3的激发电子态,因此OLED中掺入的材料应具有化学和光学惰性,以控制多晶型物。 HMB充当电子和空穴的载流子阻挡层。然而,如果焦耳热作为HMB的振动/旋转能被有效地消耗,则Alq_3可以相对于焦耳热稳定。因此,HMB有效抑制了Alq_3的自猝灭和结晶,从而延长了操作时间并提高了Alq_3-OLED的效率。

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:kefu@zhangqiaokeyan.com

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