Efficient fluorescent emitters indenoanthracenes (indene-fused anthracenes) were conjugatively extended by a fluorene unit to achieve larger molecular size derivatives of this semiconductor class. These new fluorene-extended indenoanthracene derivatives were prepared in two steps from the corresponding indenoanthraquinones in good overall yields (56–71%). They showed good solubility in common organic solvents and intense fluorescence. The synthesis and photophysical, thermal and electroluminescence properties of compounds are described. The photophysical properties of indenoanthracenes were examined by UV-vis and fluorescence spectroscopies. The indenoanthracenes in solution and thin film were found to emit in the range of 480–520 nm with good quantum yields (Φ_ƒ, 0.51–0.71). They also exhibited relatively high initial decomposition temperatures varying from 330 to 390 °C. The fluorene–extended indenoanthracenes were used as an emissive layer for the fabrication of solution-processed OLEDs. Using the device with the structure of ITO/PEDOT:PSS/indenoanthracene–D/BCP/Alq₃/LiF/Al; a maximum luminous efficiency of 1.74 cd/A was obtained with an external quantum efficiency (EQE) of 0.73%.

高效荧光发射体茚并蒽（茚-稠合蒽）通过芴单元共轭延伸，从而获得该半导体类别的更大分子尺寸的衍生物。这些新的芴延伸的茚并蒽衍生物是由相应的茚并蒽醌分两步制备的，总收率良好（56-71％）。它们在常见的有机溶剂中显示出良好的溶解性，并具有强烈​​的荧光。描述了化合物的合成以及光物理，热和电致发光性质。通过紫外可见光谱和荧光光谱检查了茚并蒽的光物理性质。在溶液和薄膜indenoanthracenes被发现以发射在具有良好的量子产率480-520纳米范围内（Φ _ƒ，0.51-0.71）。它们还表现出相对较高的初始分解温度，范围为330至390°C。芴延伸的茚并蒽用作制造溶液处理的OLED的发光层。使用结构为ITO / PEDOT：PSS /茚并蒽– D / BCP / Alq ₃ / LiF / Al的设备；外部量子效率（EQE）为0.73％时，最大发光效率为1.74 cd / A。