Dendron-functionalized perylenes for red luminescent materials

Jianfeng Pan; Weihong Zhu; Shangfeng Li; He Tian

doi:10.1117/12.600899

12 January 2005 Dendron-functionalized perylenes for red luminescent materials

Jianfeng Pan, Weihong Zhu, Shangfeng Li, He Tian

Proceedings Volume 5632, Light-Emitting Diode Materials and Devices; (2005) https://doi.org/10.1117/12.600899
Event: Photonics Asia, 2004, Beijing, China

Abstract

This paper presents a novel series of dendrimers containing perylene diimide cores, Fréchet-type poly(arylether) dendrons, and peripheral functional units such as hole-transporting groups (carbazole) via a convergent synthetic approach with three generation. The higher generation dendrimer has an obvious site-isolation effect or dilution effect of dendrons, which results in a relatively small red-shift of absorption and emission spectra when they form a solid thin film for applications. The interactions between peripheral units and perylene diimide core in the dendrimers are studied by fluorescence spectra. The steady-state fluorescence shows there is no effective Förster intramolecular energy transfer. DSC results indicate that the incorporation of Fréchet-type poly(arylether) dendrons can improve the amorphous property and increase glass transition temperature (Tg). The preliminary EL results with a single-layer architecture demonstrate that these dendrimers could be utilized as a promising kind of active red luminescent emitters.

Citation Download Citation

Jianfeng Pan, Weihong Zhu, Shangfeng Li, and He Tian "Dendron-functionalized perylenes for red luminescent materials", Proc. SPIE 5632, Light-Emitting Diode Materials and Devices, (12 January 2005); https://doi.org/10.1117/12.600899

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KEYWORDS

Dendrimers

Luminescence

Absorption

Electroluminescence

Chlorine

Thin films

Energy transfer

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