A Lasing Organic Light-Emitting Diode

作者：Wallikewitz Bodo H; de la Rosa Matthias; Kremer Jonas H W M; Hertel Dirk; Meerholz Klaus^*

来源：Advanced Materials, 2010, 22(4): 531-+.

DOI：10.1002/adma.200902451

Direct structuring of photocrosslinkable polyspirobifluorene copolymers by holographic lithography to yield insoluble, organic, distributed feedback (DFB) lasers with thresholds as low as 2 mu J cm(-2) is reported (see figure). These DFB lasers (X-LEP layer in figure) are embedded in the first optimized, multilayered slab-waveguide organic light-emitting diode with good luminance efficiency of similar to 6 cd A(-1) and concomitant low laser thresholds. The effect of electrical excitation on the optically pumped laser is investigated for the first time.

• 出版日期2010-1-26