Effects of Addition / Introduction of 1,2-Diphenoxyethane to Emitting Layer in Solid-state Electrochemical Luminescence Device.

Abstract

Effects of doping 1,2-diphenoxyethane (DPE) to the Ru(bpy)₃(PF₆)₂ light emitting layer of a solid state electro chemical luminescence (SSECL) device, fabricated by simply paste and coating techniques in air, on its luminance efficiency have been investigated. Device of which molar ratio of DPE / Ru(bpy)₃(PF₆)₂ in the light emitting layer is 0.2 showed 5.6times stronger luminescence than the DPE / Ru(bpy)₃(PF₆)₂ - free device. Increase of the DPE / Ru(bpy)₃(PF₆)₂ molar ratio increase the crystalline phase, and the light-emitting layer of high resistivity is obtained. Appropriate doping ratio of DPE / Ru(bpy)₃(PF₆)₂ can allow both high luminance and low current operations of the device.