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首页> 外文期刊>Journal of Electronic Materials >Optoelectronic Properties and Surface Plasmon Polaritons of CdO/Ag/CdO Multilayer Films Deposited by DC Pulsed Magnetron Sputtering
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Optoelectronic Properties and Surface Plasmon Polaritons of CdO/Ag/CdO Multilayer Films Deposited by DC Pulsed Magnetron Sputtering

机译：DC脉冲磁控溅射沉积CDO / AG / CDO多层膜的光电性质和表面等离子体极性膜

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摘要

The optoelectronic characteristics and surface plasmon polaritons (SPPs) of nanostructured CdO/Ag/CdO multilayer films prepared by DC pulsed magnetron sputtering were inspected. The multilayer films were deposited with different Ag metallic interlayer thickness ranging from 2 nm to 20 nm. It was observed that the CdO single-layer has high transmittance and it decreased from 85% to 70% in the visible range as the Ag metallic interlayer thickness increased from 2 nm to 20 nm. The CdO/Ag (20nm)/CdO multilayer film has the lowest transmittance and highest reflection in the NIR. The mobility, charge carrier concentration and the conductivity increased as the Ag metallic interlayer increased. The energy gap decreased from 2.77 eV for CdO single-layer to 2.44 eV for CdO/Ag (20nm)/CdO multilayer film. The CdO/Ag (16nm)/CdO multilayer film recorded the highest figure of merit value of 2.45 x 10(-3) omega(-1), which acts as an electrode in optoelectronic applications. The absorption of light was interpreted by the creation of surface plasmon polaritons (SPPs) modes along Ag/CdO interface. It was found that the CdO/Ag/CdO multilayer films could be employed as SPPs nano-waveguide for telecommunication applications at excitation wavelengths of 775 nm and 1550 nm.
机译：研究了直流脉冲磁控溅射制备的纳米结构CdO/Ag/CdO多层膜的光电特性和表面等离子体激元。制备的多层膜具有不同的银金属层厚度，厚度在2nm到20nm之间。结果表明，CdO单层膜具有很高的透过率，随着Ag金属层厚度从2nm增加到20nm，CdO单层膜在可见光范围内的透过率从85%降低到70%。CdO/Ag（20nm）/CdO多层膜在近红外波段具有最低的透过率和最高的反射率。迁移率、载流子浓度和电导率随着银金属中间层的增加而增加。CdO单层膜的能隙从2.77ev减小到CdO/Ag（20nm）/CdO多层膜的2.44ev。CdO/Ag（16nm）/CdO多层膜的优异值最高，为2.45 x 10（-3）Ω（-1），在光电应用中用作电极。光的吸收是通过沿Ag/CdO界面产生表面等离子体激元（SPPs）模式来解释的。研究发现，在775nm和1550nm的激发波长下，CdO/Ag/CdO多层膜可以作为SPPs纳米波导用于电信应用。

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