Towards Highly Efficient Blue‐Phosphorescent Organic Light‐Emitting Diodes with Low Operating Voltage and Excellent Efficiency Stability

Abstract

Let there be light! An effective strategy for the design of highly efficient phosphine oxide light-emitting-diode hosts with an ortho-linked structure has been demonstrated by synthesizing 4-diphenylphosphoryl dibenzofuran. The ortho linkage of the phosphine oxide moiety has the dual effect of retaining high T1 levels and efficiently polarising chromophores (see graphic). Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.