Yang Lanying, Li Xiong, Tuo Xianguo, Van Nguyen Thanh Thi, Luo Xiangang, Hong Minghui
College of Applied Nuclear Technology & Automation Engineering, Chengdu University of Technology, Chengdu 610059, China.
Opt Express. 2011 Jul 4;19 Suppl 4:A657-63. doi: 10.1364/OE.19.00A657.
In this paper, Ag-Au alloy nanoparticles (NPs) were fabricated by dewetting process to enhance the broadband antireflection performance of textured silicon surfaces. The alloy NPs presented a large range of shapes and sizes, which provided an average reflectance (AR) below 4% over the spectral range of 300~1200 nm, a decrease of ~50% and ~90% as compared to the corresponding monometallic NPs and the original flat Si surfaces, respectively. The superior broadband antireflection demonstrated by the alloy NPs are attributed to the enhanced light trapping by alloy nanoparticle plasmon resonance.
在本文中，通过去湿工艺制备了银-金合金纳米颗粒（NPs），以增强织构化硅表面的宽带抗反射性能。合金纳米颗粒呈现出多种形状和尺寸，在300~1200nm光谱范围内提供了低于4%的平均反射率（AR），与相应的单金属纳米颗粒和原始平面硅表面相比，分别降低了约50%和约90%。合金纳米颗粒所展现出的优异宽带抗反射性能归因于合金纳米颗粒等离子体共振增强了光捕获。
