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首页> 外文会议>Conference on Light-Emitting Diode Materials and Devices; 20071112-14; Beijing(CN) >Red Light Emitting Compounds Based on 3-D Conjugated Structure with Intramolecular Charge Transfer
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Red Light Emitting Compounds Based on 3-D Conjugated Structure with Intramolecular Charge Transfer

机译：基于3-D共轭结构的分子内电荷转移的红色发光化合物

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摘要

A starburst molecule (T) with triphenylamine (TPA) and benzothiodiazole (BTD) as constructing units was synthesized via two step Heck coupling reaction. As compared with its linear counterpart, it shows better solubility and amorphous film-forming ability. Spectroscopic properties show that it emits red light with emission peak at 651 nm in CH_2Cl_2. The red light emitting arises from the intramoleculasr charger transfer state. White light emitting diode (WLED) was fabricated with the starburst molecule as red light emitting composite. The luminance and efficiency maximum was 3960 cd/m~2, and 1.22 cd/A for the WLED device with only 0.05‰ (WAV) doping content of the light emitting composite. The high performance of WLED is attributed to the high chromorphore density and electron coupling effect of multi-branches. It is reasonable to conclude that starburst structure is superior to its linear and less branch counterparts in the fabrication of LED devices.
机译：通过两步Heck偶联反应合成了以三苯胺（TPA）和苯并硫代二唑（BTD）为结构单元的星爆分子（T）。与线性对应物相比，它显示出更好的溶解性和非晶膜形成能力。光谱性质表明，它在CH_2Cl_2中发出红光，其发射峰在651nm处。红光发射来自分子内充电器转移状态。用星爆分子作为红色发光复合材料制造了白色发光二极管（WLED）。对于仅具有0.05‰（WAV）掺杂量的发光复合材料，WLED器件的亮度和效率最大值为3960 cd / m〜2，1.22 cd / A。 WLED的高性能归因于多分支的高发色团密度和电子耦合效应。可以合理地得出结论，在LED器件的制造中，星爆结构优于其线性结构，分支结构更少。

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