Haihua Wu, Yu Cai, Li Liu, Xueting Fan, Lei Xing. Rapid Preparation and Properties of Multi-Layer Graphene Absorber Using Fused Deposition Modeling[J]. Laser & Optoelectronics Progress, 2020, 57(1): 011602
- Laser & Optoelectronics Progress
- Vol. 57, Issue 1, 011602 (2020)
Fig. 1. Effect of graphene content on complex permittivity of single-layer sample. (a) Effect on real part; (b) effect on imaginary part
Fig. 2. tanδ and conductivity of single-layer samples with different graphene contents. (a) tanδ; (b) conductivity
Fig. 3. Reflectivity and frequency for homogeneous single-layer samples with different graphene contents and different absorption layer thicknesses. (a) 7%; (b) 8%; (c) 9%
Fig. 4. Reflectivity and optimal matching thickness of single-layer sample with graphene mass fraction of 7% and different absorption layer thicknesses. (a) Reflectivity; (b) optimal matching thickness
Fig. 5. Testing sample of three-layer wave absorber and bow-shaped device for measuring reflectivity. (a) Test sample; (b) device for measuring reflectivity
Fig. 6. Reflectivity of 5 samples of three-layer wave absorber and their frequency bandwidths with reflectivity of less than -10 dB and -20 dB, respectively. (a) Reflectivity; (b) frequency bandwidth
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Table 1. Three-layer wave absorbers under different combination modes
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