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首次报道了采用８－羟基喹啉镓螯合物（Ｇａｑ３）作为发光层制备有机薄膜电致发光器件，器件的结构为：ＩＴＯ导电玻璃／ＴＰＤ／Ｇａｑ３／Ａｌ。研究了Ｇａｑ３薄膜的光致发光和器件的电致发光机理，同时测量和研究了器件的电流密度－电压（Ｊ－Ｖ）特性和发光亮度－电压（Ｂ－Ｖ）特性。结果表明器件的电致发光峰值波长为５４０ｎｍ，在２０Ｖ直流电压驱动下的最大发光亮度约为２５００ｃｄ／ｍ２，明显高于采用相同结构和工艺参数制备的Ａｌｑ３和Ｚｎｑ２器件水平。初步分析了Ｇａｑ３器件较其他两种器件具有更大的最大发光亮度的原因。
For the first time reported the use of 8-hydroxyquinoline gallium chelate (Gaq3) as a light-emitting layer preparation of organic thin-film electroluminescent devices, the device structure is: ITO conductive glass / TPD / Gaq3 / Al. The photoluminescence (PL) and electroluminescence mechanism of Gaq3 thin films were investigated. The current density-voltage (J-V) and luminance-voltage (B-V) characteristics were measured and investigated. The results show that the device has an emission peak wavelength of 540nm and a maximum luminance of 2500cd / m2 at a DC voltage of 20V, which is significantly higher than that of Alq3 and Znq2 devices fabricated with the same structure and process parameters. The reason why Gaq3 device has larger maximum brightness than the other two devices is analyzed.