A Lasing Organic Light-Emitting Diode

被引:58
作者
Wallikewitz, Bodo H. [1 ]
de la Rosa, Matthias [1 ]
Kremer, Jonas H. -W. M. [1 ]
Hertel, Dirk [1 ]
Meerholz, Klaus [1 ]
机构
[1] Univ Cologne, Dept Chem, D-50939 Cologne, Germany
关键词
PERFORMANCE;
D O I
10.1002/adma.200902451
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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.
引用
收藏
页码:531 / +
页数:5
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