| 主客体掺杂和空穴阻挡对蓝色磷光OLED发光性能的影响研究 |
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| 引用本文： | 杨少鹏,居秀琴,赵方超,邱晓丽,王利顺,刘素玲.主客体掺杂和空穴阻挡对蓝色磷光OLED发光性能的影响研究[J].功能材料,2009,40(9). |
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| 作者姓名： | 杨少鹏 居秀琴 赵方超 邱晓丽 王利顺 刘素玲 |
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| 作者单位： | 河北大学,物理科学与技术学院,河北,保定,071002 |
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| 基金项目： | 国家自然科学基金资助项目(60678006);;河北省博士基金资助项目(06547002D-4);;河北省自然科学基金资助项目(E2007000196) |
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| 摘 要： | 以铱配合物蓝色磷光材料Firpic作为掺杂剂,制备了基于CBP为主体的蓝色有机电致发光器件,其结构为ITO/CuPc/FIrpic:CBP(x%)/BCP/Alq3/LiF/Al,其中x%为发光层主客体掺杂浓度.分别研究了主客体掺杂浓度和空穴阻挡层BCP的厚度对器件发光性能的影响,当掺杂浓度为8%时,主客体间的能量传转移最充分,器件的启亮电压为5V,器件在20V时的亮度为7122.25cd/m2.器件电致发光(EL)光谱出现明显的红移现象,为Alq3部分参与了发光,影响了发光的色纯度,改变BCP的厚度,可以调节载流子复合区域和器件发光的色度坐标,达到改善器件发光性能的目的.
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| 关 键 词： | 有机电致发光器件 掺杂 空穴阻挡层 发光性能 |
Influence of doping and hole-blocking on the luminesent performance of blue OLED |
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| YANG Shao-peng
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JU Xiu-qin
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ZHAO Fang-chao
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QIU Xiao-li
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WANG Li-shun
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LIU Su-ling.Influence of doping and hole-blocking on the luminesent performance of blue OLED[J].Journal of Functional Materials,2009,40(9). |
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| Authors: | YANG Shao-peng JU Xiu-qin ZHAO Fang-chao QIU Xiao-li WANG Li-shun LIU Su-ling |
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| Affiliation: | College of Physics Science and Technology;Hebei University;Baoding 071002;China |
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| Abstract: | Blue orgnic electroluminescent devices(OLED) were fabricated by using blue phosphorescent dye Firpic doped with the host material CBP as the emitting layer.The configuration of the devices was ITO/CuPc/Firpic:CBP(x%)/BCP/Alq3/LiF/Al,in which x% was the doping concentration of Firpic.The doping concentration between the host and guest and the thickness of hole blocking layer BCP on the the properties of light-emitting devices were separately studied.When the doping concentration was 8%,the energy transfer be... |
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| Keywords: | orgnic electrophosphorescent devices doping hole blocking layer luminescent perfoemance |
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