| 电压调节变色的有机薄膜电致发光器件 |
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| 引用本文： | 刘祖刚,赵伟明.电压调节变色的有机薄膜电致发光器件[J].功能材料与器件学报,1997,3(2):119-123. |
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| 作者姓名： | 刘祖刚 赵伟明 |
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| 作者单位： | 上海大学嘉定校区材料学院 |
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| 摘 要： | 制备了结构为ＩＴＯ／ＳＡ／ＰＢＤ／Ａｌｑ３／Ａｌ的电压调制发光颜色的有机薄膜电致发光器件，研究了有机层厚度不同的器件的发光光谱随电压变化的性能，建立了器件的能级结构模型，并用这种模型解释了器件的电致发光性能。
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| 关 键 词： | 有机薄膜 电致发光器件 电压调制变色 |
VOLTAGE CONTROLLED COLOR VARIABLE ORGANIC THIN FILM EL DEVICE |
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| LIU Zugang,ZHAO Weiming,TANG Chunjiu,WANG Linjun,JIANG Xueyin,ZHANG Zhilin,XU Shaohong.VOLTAGE CONTROLLED COLOR VARIABLE ORGANIC THIN FILM EL DEVICE[J].Journal of Functional Materials and Devices,1997,3(2):119-123. |
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| Authors: | LIU Zugang ZHAO Weiming TANG Chunjiu WANG Linjun JIANG Xueyin ZHANG Zhilin XU Shaohong |
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| Abstract: | An organic thin film electroluminescen device emitting different color with different driven voltage has been fabricated The structure of the device is ITO/SA/PBD/Alq3/Al SA is a styrylphenylamine derivative and its full name is N (2 p methoxylphenyl) styryl N p methoxylphenyl benzeneamine SA can emit blue light with peak at 470nm Alq3 is a chelate of aluminum with three 8 hydroxylquinoline and emits green light at 520nm PBD, an oxadizole derivative, is used between SA layer and Alq3 layer to confine the emission both from SA and Alq3 The variation of electroluminescent spectrum with the voltage applied to device has been investigated It is found that the emission spectrum of the device is consist of two parts, one is blue emitted from SA, the orther is green emitted from Alq3 And the blue part increases with increase of the driven voltage An energy band model is established from the data of work function of the electrodes and the HOMO levels and LUMO levels of the organic materials The EL behavior of the device has been explained by the energy band model |
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| Keywords: | Organic thin film electroluminescent device color variation with deiven voltage |
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