| 采用DCJTB作为色彩转换膜实现白色有机电致发光的研究 |
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| 引用本文： | 焦志强,吴晓明,华玉林,毕文涛,穆雪,白娟娟,印寿根.采用DCJTB作为色彩转换膜实现白色有机电致发光的研究[J].光电子．激光,2012(7):1252-1256. |
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| 作者姓名： | 焦志强 吴晓明 华玉林 毕文涛 穆雪 白娟娟 印寿根 |
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| 作者单位： | 天津理工大学材料科学与工程学院材料物理研究所教育部光电显示材料与光电器件重点实验室天津市光电显示材料与光电器件重点实验室;天津理工大学材料科学与工程学院材料物理研究所教育部光电显示材料与光电器件重点实验室天津市光电显示材料与光电器件重点实验室;天津理工大学材料科学与工程学院材料物理研究所教育部光电显示材料与光电器件重点实验室天津市光电显示材料与光电器件重点实验室;天津理工大学材料科学与工程学院材料物理研究所教育部光电显示材料与光电器件重点实验室天津市光电显示材料与光电器件重点实验室;天津理工大学材料科学与工程学院材料物理研究所教育部光电显示材料与光电器件重点实验室天津市光电显示材料与光电器件重点实验室;天津理工大学材料科学与工程学院材料物理研究所教育部光电显示材料与光电器件重点实验室天津市光电显示材料与光电器件重点实验室;天津理工大学材料科学与工程学院材料物理研究所教育部光电显示材料与光电器件重点实验室天津市光电显示材料与光电器件重点实验室 |
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| 基金项目： | 国家自然科学基金(60906022、60876046);天津市自然科学面上基金(10JCYBJC01100)资助项目 |
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| 摘 要： | 采用橙红色荧光材料4-(二氰基亚甲基)-2-叔丁基-6-(1,1,7,7-四甲基久罗尼定基-4-乙烯基)-4H-吡喃(DCJTB)作为色彩转换材料,结合蓝色有机电致发光器件实现了较好的白光发射。分别通过真空蒸镀和旋转涂覆两种不同的工艺进行色彩转换膜(CCL)的制备,发现不同的转换膜制备工艺对白光器件的性能影响不明显。当采用浓度比例为20mg/ml的DCJTB溶液通过旋涂方法制备CCL后,所得到白光器件的起亮电压为3.4V,在12V时达到最大亮度为1 939cd/m2,且该器件的最大电流效率为1.34cd/A(在电流密度为3.23mA/cm2时)。当驱动电压从5V增加到9V时,该白光器件的色坐标仅从(0.36,0.33)变化到(0.33,0.31)。表现出良好的色纯度和色稳定性。
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| 关 键 词： | DCJTB 色彩转换膜(CCL) 色稳定性 白色有机电致发光 |
Study of white organic light emitting diodes utilizing DCJTB as color conversion layers |
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| JIAO Zhi-qiang,WU Xiao-ming,HUA Yu-lin,BI Wen-tao,Mu Xue,BAI Juan-juan and Yin ShouGen.Study of white organic light emitting diodes utilizing DCJTB as color conversion layers[J].Journal of Optoelectronics·laser,2012(7):1252-1256. |
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| Authors: | JIAO Zhi-qiang WU Xiao-ming HUA Yu-lin BI Wen-tao Mu Xue BAI Juan-juan and Yin ShouGen |
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| Affiliation: | Key Laboratory of Display Materials and Photoelectric Devices of Ministry of Education,Tianjin Key Laboratory for Photoelectric Materials and Devices,Institute of Physical Materials,School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices of Ministry of Education,Tianjin Key Laboratory for Photoelectric Materials and Devices,Institute of Physical Materials,School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices of Ministry of Education,Tianjin Key Laboratory for Photoelectric Materials and Devices,Institute of Physical Materials,School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices of Ministry of Education,Tianjin Key Laboratory for Photoelectric Materials and Devices,Institute of Physical Materials,School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices of Ministry of Education,Tianjin Key Laboratory for Photoelectric Materials and Devices,Institute of Physical Materials,School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices of Ministry of Education,Tianjin Key Laboratory for Photoelectric Materials and Devices,Institute of Physical Materials,School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices of Ministry of Education,Tianjin Key Laboratory for Photoelectric Materials and Devices,Institute of Physical Materials,School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China |
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| Abstract: | A good white emission is realized by combining blue organic light emitting devices with 4-sdicyanomethylened-2-t-butyl-6-s1,1,7,7-tetramethy ljulolidyl-9-enyl(DCJTB) which is used as color conversion layers(CCLs).We have found that the effect of fabricating CCL by vacuum depositing or spin coating technology on the device performance is very little.When the CCL,in which the concentration of DCJTB is 20 mg/ml,is prepared by spin coating,the turn-on voltage of the device is 3.4 V,the maximum luminance is 1 939 cd/m2(12 V),and the maximum current efficiency is 1.34 cd/A at 3.23 mA/cm2.Its CIE coordinates only will change from(0.36,0.33) to(0.33,0.31) when the driving voltage is increased from 5 V to 9 V,which exhibits a pure white light and good color stability. |
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| Keywords: | DCJTB color conversion layer(CCL) color stability white organic light emitting |
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