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首页> 外文会议>Flexible Electronics 2004 -Materials and Device Technology >Fabrication and Photoelectrical Characteristics of Polymer-Organic-Blend Photodetectors
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Fabrication and Photoelectrical Characteristics of Polymer-Organic-Blend Photodetectors

机译：聚合物-有机混合光电探测器的制备和光电特性

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Polymer optoelectronics and microelectronics have been recognized as next generation technologies. One of the widely investigated materials for photodiode, LED and solar cell applications is the insoluble conjugated polymer poly(p-phenylene vinylene) or PPV. In this paper we present experimental results of a blended polymer-organic compound photodiode. This diode is based on a soluble derivative of PPV, poly(2-methoxy-5- (2,9-ethyl-hexyloxy)-l,4-phenylene vinylene) or MEH-PPV, and the organic material ethyl viologen dibromide or EVD. In making the photodiodes, solutions of MEH-PPV and EVD were spin-coated on indium tin oxide coated glass substrates. The thicknesses of these polymer-organic thin films were approximately 190 nm. An aluminum cathode was deposited by thermal evaporation. These devices were illuminated under monochromatic light in UV and visible range wavelengths. These thin polymer-organic blend photodiodes have shown an eight-fold increase in responsivity and quantum efficiency compared to pure MEH-PPV photodiode devices. The increase in photoconductivity of blended MEH-PPV:EVD photodiodes may be due to charge transfer by EVD dication. The results from this work clearly demonstrate the application of the reported approach for the realization of polymer photodiodes with increased photoconductivity characteristics.
机译：聚合物光电子学和微电子学已被认为是下一代技术。广泛研究的用于光电二极管，LED和太阳能电池应用的材料之一是不溶性共轭聚合物聚对苯撑亚乙烯基或PPV。在本文中，我们介绍了一种混合聚合物-有机化合物光电二极管的实验结果。该二极管基于PPV，聚（2-甲氧基-5-（2,9-乙基-己氧基）-1,4-亚苯基亚乙烯基）或MEH-PPV的可溶衍生物以及有机材料乙基二氟乙烷基二溴化物或EVD 。在制造光电二极管时，将MEH-PPV和EVD溶液旋涂在氧化铟锡涂层的玻璃基板上。这些聚合物有机薄膜的厚度约为190nm。通过热蒸发沉积铝阴极。这些设备在紫外线和可见光范围波长的单色光下照明。与纯MEH-PPV光电二极管器件相比，这些薄的聚合物-有机共混光电二极管的响应度和量子效率提高了八倍。混合的MEH-PPV：EVD光电二极管的光电导性增加可能归因于EVD指示的电荷转移。这项工作的结果清楚地证明了所报道的方法在实现具有增加的光电导特性的聚合物光电二极管中的应用。

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