Introduction of Interlayer via Oxetane Based Crosslinking Method for Blue Polymer Light-Emitting Diode Applications.

Two interlayers, blended interlayer based on TPD-oxetane with PFO-TPD-OCH3 and crosslinkable polymer interlayer based on Poly(RO2-spiro-TPA-oxetane), were introduced in polymer light-emitting diodes (PLEDs). Both interlayers showed resistance to organic solvents and the performance of PLEDs was greatly enhanced when each interlayer was inserted. The maximum luminescence efficiency of 0.147 cd/A at 11 V and the maximum luminescence of 739 cd/m2 at 15 V have been achieved with blue light emitting polymer, Poly(RO2-spirobifluorene). [ABSTRACT FROM AUTHOR]