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利用二次阳极氧化法在稀硫酸溶液中制备了不同孔径的多孔铝模板,并用交流电化学沉积的方法在多孔铝中合成了铜纳米线。测量了铜/多孔铝复合膜的透射光谱及偏振光谱。实验结果表明,这种含铜纳米线多孔铝膜微偏振器件在近红外光区有较好的透射率和消光比,且随着铜纳米线直径的增加,样品的透射率下降而其消光比却明显提高。通过分析得出,优化模板参数可制备出高效率的铜/多孔铝微偏振器。这种微偏振器件制备方法简单、效率高、造价低,在光电集成领域有着广泛的应用前景。
The porous aluminum templates with different pore sizes were prepared by the secondary anodic oxidation in dilute sulfuric acid solution. Copper nanowires were synthesized in porous aluminum by electrochemical deposition. The transmission spectra and polarization spectra of copper / porous aluminum composite films were measured. The experimental results show that the copper-containing nanowire porous aluminum film micro-polarization device has better transmittance and extinction ratio in the near-infrared region. With the increase of the diameter of the copper nanowire, the transmittance of the sample decreases and the extinction ratio But significantly improved. Through the analysis, we can get a high efficiency copper / porous aluminum micro-polarizer by optimizing the template parameters. The preparation method of the micropolarization device is simple, high efficiency, low cost and has broad application prospect in the field of optoelectronic integration.