Meng Guo, Hongbo He, Kui Yi, Shuying Shao, Guohang Hu, Jianda Shao. Optical characteristics of ultrathin amorphous Ge films[J]. Chinese Optics Letters, 2020, 18(10): 103101
- Chinese Optics Letters
- Vol. 18, Issue 10, 103101 (2020)
Fig. 1. X-ray diffraction patterns of Ge films: (a) before annealing, (b) after annealing.
Fig. 2. Raman spectra of Ge films: (a), (b), (c) before annealing, (d) after annealing.
Fig. 3. Thickness at different deposition temperatures: (a) before annealing, (b) after annealing.
Fig. 4. Transmittance of Ge films on fused quartz: (a) before annealing, (b) after annealing.
Fig. 5. Optical band gap of Ge films on fused quartz: (a) before annealing, (b) after annealing.
Fig. 6. XPS analysis of Ge films after annealing: (a), (d) deposition (100°C) + annealing, (b), (e) deposition (200°C) + annealing, (c), (f) deposition (300°C) + annealing.
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