용액공정으로 제작한 투명 유기 발광 다이오드

Abstract

We develop the fully solution-processed transparent organic light-emitting diodes (OLEDs) where all organic layers are prepared by spin-coating method without any evaporation process. The fully solution-processed OLEDs consist of solution-processed electron transport layers and emissive layers as well as the laminated hole transport layer/top electrode. The solution-processed transparent OLEDs show a clear double side emission. This method provides readily processed devices where thermal evaporation, which is complicated and expensive process, is not required. We believe that the fully solution-processed transparent OLEDs investigated here can greatly contribute to the development of low-cost, solution-processed transparent OLEDs.