| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1268019 | Organic Electronics | 2010 | 5 Pages |
Abstract
The novel p-dopant 2,3-di(N-phthalimido)-5,6-dicyano-1,4-benzoquinone (BAPD) was synthesized and compared to the state-of-the-art dopant F4TCNQ. BAPD shows a higher evaporation temperature and thermal stability than F4TCNQ, presumably due to its higher molecular weight and bulkiness. The efficiency of the host-to-dopant electron transfer as well as the diffusion characteristics of the p-dopants were investigated by ultraviolet photo emission spectroscopy (UPS) and X-ray photo emission spectroscopy (XPS). Although BAPD is a less strong p-dopant than F4TCNQ, the lower diffusion tendency and higher thermal stability of this new class of dopants forms an attractive potential for the lifetime improvement of organic electronic devices.
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Authors
Ingmar Bruder, Soichi Watanabe, Jianqiang Qu, Imke B. Müller, Ralf Kopecek, Jaehyung Hwang, Jürgen Weis, Nicolle Langer,