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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and Spectroscopic and Photoconduction Characteristics of Coaxial Poly[2-methoxy-5-(2'-ethylhexyloxy)21,4-phenylene vinylene] Single-Walled Carbon Nanotube Films with Ohmic-like Transport Attributes
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Synthesis and Spectroscopic and Photoconduction Characteristics of Coaxial Poly[2-methoxy-5-(2'-ethylhexyloxy)21,4-phenylene vinylene] Single-Walled Carbon Nanotube Films with Ohmic-like Transport Attributes

机译：具有欧姆样传输特性的同轴聚[2-甲氧基-5-（2'-乙基己氧基）21,4-亚苯基亚乙烯基]单壁碳纳米管薄膜的合成，光谱和光电导特性

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摘要

Highly luminescent, core'shell, single-walled carbon nanotube'poly[2-methoxy-5-(2'-ethylhexyloxy)21,4-phenylene vinylene] (MEH-PPV) one-dimensional networks were synthesized by a multicycle unstable micellization method. The current'voltage data indicated that the charge transport within the nanowire network remained Ohmic, with the differential conductance scaling linearly with temperature in the temperature range of about 120 to 300 K. Further analysis based on the comparative study involving photoluminescence and Raman spectroscopic tests pointed to interchain interactions and nanotube'polymer interface as primary factors influencing the electronic characteristics of the processed samples. Likewise, steady-state photoconduction tests confirmed that the heterointerface played a dominant role behind the increased photoresponse induced by exciton annihilation at a low bias regime. The study helped us identify the underlying physical mechanisms that controlled the optical, electrical, and photoconduction properties of the MEH-PPV'carbon nanotube heteronetworks. Potentially, this will open a door to the development of next generation, low-cost, all-organic nanooptoelectronic devices and systems.
机译：通过多周期不稳定胶束化合成高发光，核'壳，单壁碳纳米管'聚[2-甲氧基-5-（2'-乙基己氧基）21,4-亚苯基亚乙烯基]（MEH-PPV）一维网络。方法。当前的电压数据表明，纳米线网络中的电荷传输仍保持欧姆状态，差分电导随温度在约120至300 K范围内线性变化。基于包括光致发光和拉曼光谱测试的比较研究的进一步分析指出链间相互作用和纳米管的聚合物界面是影响加工样品电子特性的主要因素。同样，稳态光电导测试证实，在低偏置状态下，异质界面在激子an灭引起的光响应增加中起着主导作用。这项研究帮助我们确定了控制MEH-PPV'碳纳米管异质网络的光学，电学和光电导性质的潜在物理机制。潜在地，这将为下一代低成本全有机纳米光电子器件和系统的发展打开一扇门。

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