Deep blue organic light-emitting diodes based on triphenylenes

作者：Wettach Henning; Jester Stefan S; Colsmann Alexander; Lemmer Uli^*; Rehmann Nina; Meerholz Klaus; Hoeger Sigurd

来源：Synthetic Metals, 2010, 160(7-8): 691-700.

DOI：10.1016/j.synthmet.2010.01.003

• OLEDs
• Triphenylenes
• Blue light-emitting
• Vacuum processing
• Solution processing

We report about new easy-to-synthesize deep blue light-emitting organic materials. Various substituted low-molecular-weight triphenylene-derivatives have been prepared in a one-step procedure and are easily available on large scale and high purity. Furthermore, the synthesis of an oxetane functionalized, photo-crosslinkable triphenylene-based emitter material with enhanced film-forming properties is described. The low-molecular-weight emitters were vacuum-deposited, whereas the photo-crosslinkable emitter material derivative was processed from solution. The optical and electrical properties of the compounds were investigated. The corresponding photoluminescence emission spectra exhibit lambda(max,ems) values around 400 nm. Organic light-emitting multi layer devices were fabricated and characterized. OLED devices from these molecules emit deep blue light of 436-456 nm.

• 出版日期2010-4