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Numerical Study of an Au-ZnO-Al Perfect Absorber for a Color Filter with a High Quality Factor |
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| Authors: | Tan Jun Wu Zhe Xu Kai Meng Yanlong Jin Guojun Wang Lingli Wang Yuying |
| Institution: | 1.College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, Zhejiang, People’s Republic of China ;2.Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing, 210023, People’s Republic of China ;3.College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310018, Zhejiang, People’s Republic of China ; |
| Abstract: | In this research, a perfect absorber based on an Au-ZnO-Al structure was studied numerically. The wavelength-selective and angle-independent characteristics of the device were demonstrated by simulation. The roles of the top metallic layer and the middle dielectric layer in producing a wavelength-selective perfect absorber with a high quality factor were investigated. The direction for further improving the quality factor is also pointed out in this paper. The research will be helpful for understanding the origination of perfect absorption in these types of metal-insulator-metal structures and producing a color filter with a high quality factor. |
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