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Nanoscale optical and photoresponsive electrical properties of P3HT and PCBM composite nanowires

机译：P3HT和PCBM复合纳米线的纳米级光学和光响应电性能

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摘要

In this paper, we report on the fabrication, intrinsic characteristics, and photoresponsive electrical properties of heterojunction composite nanowires (NWs) consisting of p-type poly (3-hexylthiophene) (P3HT) and n-type [6,6]-phenyl C61 butyric acid methyl ester (PCBM). The P3HT:PCBM heterojunction composite NWs were prepared through a wetting method based on an alumina nanoporous template. The nanoscale optical and structural properties of the single NW were investigated using laser confocal microscope Raman and photoluminescence spectra. The photoresponsive current-voltage (1-V) characteristics of the P3HT:PCBM single NW were measured by means of Au-Al electrode patterns. For the P3HT:PCBM single NW, the I-V characteristics in the dark condition showed diode-like behaviors due to the formation of energy barriers. Under light illumination, the current level of the P3HT:PCBM single NW was enhanced at a relatively high applied bias (3*10 V). The photovoltaic effect was observed for the solar cells using P3HT:PCBM composite NWs and the maximum power conversion efficiency was estimated to be 0.14%.
机译：在本文中，我们报告了由p型聚（3-己基噻吩）（P3HT）和n型[6,6]-苯基C61组成的异质结复合纳米线（NWs）的制备，内在特性和光响应电性能丁酸甲酯（PCBM）。 P3HT：PCBM异质结复合NW是通过基于氧化铝纳米多孔模板的润湿方法制备的。使用激光共聚焦显微镜拉曼光谱和光致发光光谱研究了单个NW的纳米级光学和结构特性。 P3HT：PCBM单个NW的光响应电流-电压（1-V）特性通过Au-Al电极图案进行了测量。对于P3HT：PCBM单个NW，由于形成了能垒，因此在黑暗条件下的I-V特性显示出类似二极管的行为。在光照下，P3HT：PCBM单个NW的电流水平在相对较高的施加偏置（3 * 10 V）下得以增强。对于使用P3HT：PCBM复合NW的太阳能电池，观察到了光伏效应，最大功率转换效率估计为0.14％。

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