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对以热蒸发法制备的超薄Ag薄膜,扫描电子显微镜结果显示其呈纳米尺度的颗粒状,由透射谱测量发现其具有表面等离子体激元特征.检测到不同条件制备纳米Ag薄膜的表面等离子体共振吸收峰的位移规律,且纳米Ag材料具有选择性的透过、反射特性.通过不同的制备条件,得到了在长波范围内透过率超过90%、在表面等离子体共振峰值位置处反射率接近50%且峰位可调的光学薄膜材料.这种薄膜材料有望成为应用在薄膜太阳电池中间层中具有潜在性光管理功能的光学薄膜材料.
The results of scanning electron microscopy (SEM) showed that the ultrathin Ag film prepared by the thermal evaporation method was in the form of nanometer-scale particles and was characterized by surface plasmon polaritonometry. The surface plasmons Body resonance absorption peak, and the selective transmission and reflection properties of the nano-Ag material were obtained.According to the different preparation conditions, the transmittance over 90% in the long wave range and the reflection at the peak position of the surface plasmon resonance Nearly 50% of the rate and adjustable optical peak optical film material.This film is expected to become the thin film solar cell intermediate layer with potential light management optical film material.