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首页> 外文期刊>Chinese science bulletin >Blue light-emitting diodes made of molecular-doped polymer and large area light-emitting display
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Blue light-emitting diodes made of molecular-doped polymer and large area light-emitting display

机译：由分子掺杂聚合物制成的蓝色发光二极管和大面积发光显示器

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Recently much attention has been paid to the use of semiconducting electroluminescence polymers to fabricate light-emitting diodes (LEDs) due to the significant processing, mechanical advantages, size (large area) advantages and broad spectral range (colour). This note reports that a typical conjugated polymer poly(N-vinylcarbazole) (PVK) doped with 1, 1,4, 4-terapheny 1-1.3-butadiene (TPB) functions as a hole transporting material and emitting layer for the polymer EL device, and that a novel multilayered device consisting of single layer of tris(8-quinlinolate)-aluminum (Alq_3) functioning as an electron transport layer exhibits high luminance efficiency and significant durability. Blue emission has been observed on the device at room temperaturewith the DC bias voltage of 4 V. The EL peak centres at 465 run and blue electroluminescence of 1 000 cd/m~2 has also been observed at about 15V. Some large area blue light-emitting display has also been fabricated.
机译：近年来，由于其显着的加工，机械优势，尺寸（大面积）优势和宽光谱范围（颜色），已将注意力转移到使用半导体电致发光聚合物来制造发光二极管（LED）。该说明报告说，掺杂有1，1,4，4-三苯甲基1-1.3-丁二烯（TPB）的典型共轭聚合物聚（N-乙烯基咔唑）（PVK）用作空穴传输材料和聚合物EL器件的发射层并且，由三层（8-喹啉酸酯）-铝（Alq_3）作为电子传输层的单层构成的新型多层器件显示出高的发光效率和显着的耐久性。在室温下，在直流偏置电压为4 V的情况下，在该设备上观察到蓝色发射。EL峰中心在465处运行，并且在约15V的电压下也观察到了1000 cd / m〜2的蓝色电致发光。还已经制造了一些大面积的蓝色发光显示器。

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