Lifetime Comparisons of Organic Light-Emitting Diodes Fabricated by Solution and Evaporation Processes.

In this paper, a blue fluorescent organic light-emitting diode (OLED) with a 1 cm emitting area was fabricated by a solution process. The ITO/spin MADN:13% UBD-07/TPBi/Al was used as the basic structure in which to add a hole-injection layer PEDOT:PSS and an electron-injection layer LiF, respectively. The device structure was optimized to obtain a longer lifetime.