Organic Electroluminescent Devices using Poly(N-vinylcarbazole) and Novel Electron-transport Materials

摘要

We have fabricated and characterized devices using PVK films formed by vapor deposition. The devices exhibited green, red, blue and white emission by selecting the appropriate electron-transport material. We suggest that the red emission from the europium complex occurs by the highly efficient Foerster-type energy transfer from PVK to the europium complex. However, we still have to improve the deposition rate of the PVK film to obtain higher luminance.