1,3,6,8-Tetrakis[(triisopropylsilyl)ethynyl]pyrene: A highly efficient solid-state emitter for non-doped yellow electroluminescence devices

Simple molecule possesses high power: 1,3,6,8-Tetrakis[(triisopropylsilyl)ethynyl]pyrene (TTIPSEPy), a simple-structured molecule, shows strong solid-state photoluminescence with unity emission efficiency. Highly efficient non-doped organic light-emitting diodes are fabricated using TTIPSEPy as emitter, exhibiting stable yellow light (CIE = 0.41, 0.56) with high luminance and efficiency up to 26,400 cd/m2 and 9.2 cd/A, respectively.

Graphical abstractA new pyrene derivative exhibits unity solid-state fluorescence efficiency and yellow electroluminescence with an efficiency of 9.2 cd/A in non-doped OLED.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A new pyrene derivative is facilely synthesised and fully characterized. ► It shows intense photoluminescence with unity emission efficiency in solid-state. ► Highly efficient non-doped organic light-emitting diodes are fabricated based on it.