| 有机薄膜电致发光失效过程的多重分形谱研究 |
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| 引用本文： | 王晓平,周翔,何钧,廖良生,吴自勤. 有机薄膜电致发光失效过程的多重分形谱研究[J]. 物理学报, 1999, 48(10): 1911-1916 |
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| 作者姓名： | 王晓平 周翔 何钧 廖良生 吴自勤 |
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| 作者单位： | 中国科学技术大学物理系，合肥 230026;复旦大学应用表面物理国家重点实验室，上海 200433;复旦大学应用表面物理国家重点实验室，上海 200433;复旦大学应用表面物理国家重点实验室，上海 200433;中国科学技术大学天文和应用物理系，合肥 230026 |
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| 基金项目： | 国家自然科学基金（批准号：69776034）资助的课题. |
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| 摘 要： | 用多重分形谱描述了荧光显微镜原位观察到的有机薄膜电致发光的失效过程.实验观察表明：有机层/金属电极界面上气泡的产生是电致发光的失效的原因.多重分形谱的分析显示：随薄膜工作时间愈长或工作电压愈高，分形谱的宽度愈窄，表明气泡的数量逐渐增加并愈加均匀地分布在界面上，这一结果和实验观察完全一致，因此多重分形谱可以很好地描述这种失效过程.
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MULTIFRACTAL OF THE FAILURE PEROCESS OF ELECTROLUMINSCENCE OF ORGANIC THIN FILM |
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| WANG XIAO-PING,ZHOU XIANG,HE JUN,LIAO LIANG-SHENG and WU ZI-QIN. MULTIFRACTAL OF THE FAILURE PEROCESS OF ELECTROLUMINSCENCE OF ORGANIC THIN FILM[J]. Acta Physica Sinica, 1999, 48(10): 1911-1916 |
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| Authors: | WANG XIAO-PING ZHOU XIANG HE JUN LIAO LIANG-SHENG WU ZI-QIN |
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| Abstract: | The multifractal approach was used to describe the failure process of organic thin film electrolu-minescence observed with fluomicroscope dynamically.It was found that the failure of the electrolu-minescence resulted from the bubbles generated at the interface between the organic layper and the metal electrode.The bubbles became more and more numerous during the device working.Multifrac-tal spectra showed that the longer the working time or the higher the loaded voltage of the device,the narrower the spectrum.This result was in good agreement with the experimental observation. |
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