| 基于DPAVBi的蓝绿光有机电致发光器件 |
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| 引用本文： | 张刚,郭金昌,田晓萃,常喜,高永慧,姜文龙.基于DPAVBi的蓝绿光有机电致发光器件[J].松辽学刊,2013(4):126-128. |
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| 作者姓名： | 张刚 郭金昌 田晓萃 常喜 高永慧 姜文龙 |
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| 作者单位： | 吉林师范大学信息技术学院,吉林四平136000 |
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| 基金项目： | 吉林省科技发展项目（20100510,20101512,201215221）,吉林省教育厅“十二五”科学技术研究项目（2011154,2012175,2012176,2013208） |
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| 摘 要： | 制备了结构为ITO／NPB（40nm）／DPAVBi（znm）／Alq，（30nm）／LiF（0．5nm）／AI的蓝绿色OLED器件．通过改变DPAVBi的厚度，研究其对器件性能的影响．当DPAVBi层厚度为20nm时，器件的性能较好．在电流密度为38．79mA／cm。时，效率为3．32cd／A；在电压为21V时，亮度为8296cd／m。．而且，随着电流密度的增加，四个器件的效率曲线变化非常平缓，说明器件的电流荧光湮没性较弱．当驱动电压从10V增加到21V时，器件的色坐标从（0．27，0．48）变化到（0．25，0．45），始终处于蓝绿光范围内，色度变化很小．
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| 关 键 词： | 电流密度 效率 亮度 荧光湮灭 |
Blue-green Organic Light-emitting Devices Based on DPAVBi |
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| ZHANG Gang,GUO Jin-chang,TIAN Xiao-cui,CHANG Xi,GAO Yong-hui,JIANG Wen-long.Blue-green Organic Light-emitting Devices Based on DPAVBi[J].Songliao Journal (Natural Science Edition),2013(4):126-128. |
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| Authors: | ZHANG Gang GUO Jin-chang TIAN Xiao-cui CHANG Xi GAO Yong-hui JIANG Wen-long |
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| Institution: | (College of Information Technology, Jilin Normal University, Siping 136000, China) |
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| Abstract: | The devices were factured with the structure of ITO/NPB （d0 nm）/DPAVBi （ x nm）/Alq3 （ 30 nm） / LiF（O. 5 nm）/Al（ 100 nm）. DPAVBi with different thickness has effect on the performance of the devices. When the thickness of DPAVBi is 20 nm, the performance of the device is better than others. The device has a maximum luminance 8296 cd/m2 at 21V and maximum efficiency 3.32 cd/A at 38.79 mA/cm2. And the efficiency drops slowly when the current density increases. So, all the devices have the current weak fluorescence quenching. The CIE coordinates of the device varied from（0.27,0.48 ）to（0.25,0.45 ）when the voltage was changed from 10 V to 21V. They were well in the blue-green region. |
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| Keywords: | current density efficiency luminance fluorescence quenching |
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