White electroluminescence from polyfluorene chemically doped with 1,8-napthalimide moieties
White electroluminescence from polyfluorene chemically doped with 1,8-napthalimide moieties
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DOI：
10.1063/1.1793356
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发表时间：
2004-09
影响因子：
4
通讯作者：
G. Tu;Quanguo Zhou;Yanxiang Cheng;Lixiang Wang;Dongge Ma;X. Jing;Fo-song Wang
中科院分区：
文献类型：
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作者：
G. Tu;Quanguo Zhou;Yanxiang Cheng;Lixiang Wang;Dongge Ma;X. Jing;Fo-song Wang
以聚芴（PFO）为原料，通过化学掺杂橙子荧光基团1，8-萘酰亚胺，制备了一种高效的白色发光聚合物。通过改变1，8-萘酰亚胺基团的含量，可以很容易地调节发射光谱。采用氧化铟锡（ITO）/（3，4-乙撑二氧噻吩）-聚苯乙烯磺酸（PEDOT）复合物/聚合物scinCa scinAl结构的白色聚合物发光二极管（WPLED）在6V电压下的电流效率为5.3cd scinA，功率效率为2.8LmscinW，CIE坐标为（0.25，0.35）。此外，该共聚物的WPLED在不同的驱动电压和亮度下显示出非常稳定的白色发光。在6、8和10 V的驱动电压下，WPLED的CIE坐标分别为（0.25，0.35）、（0.26，0.36）和（0.26，0.36），分别对应于82、3555和7530 cd scinm 2的亮度。该方法实现了白色光的发射，在聚合物共混体系中具有广阔的应用前景。
An efficient white light-emitting polymer was developed with blue polyfluorene (PFO) chemically doped with orange fluorescent 1, 8-naphthalimide moieties. The emission spectrum can be easily tuned by varying the content of 1, 8-naphthalimide moieties. A white polymeric light-emitting diode (WPLED) with a structure of indium tin oxide (ITO)/the complex of (3,4-ethylenedioxythiophene) and polystyrene sulfonic acid (PEDOT)/polymer∕Ca∕Al showed a current efficiency of 5.3cd∕A and a power efficiency of 2.8Lm∕W at 6V with the Commission Internationale de L'Eclairage (CIE) coordinates at (0.25,0.35). Moreover, the WPLED from the copolymer showed a very stable white light emission at different driving voltage and brightness. The CIE coordinates of the WPLED were (0.25, 0.35), (0.26, O.36), and (0.26, 0.36) under driving voltages of 6, 8, and 10V, corresponding to the brightness of 82, 3555, and 7530cd∕m2, respectively. This approach for realization of white light emission is promising over the polymer blending sy...