Figure 3From: Analysis of p-Si macropore etching using FFT-impedance spectroscopyNyquist plots showing the high-quality fitting (solid line) for substantially different HF and water concentrations. Pores were etched into 20 Ωcm p-Si {100) at j = 10 mAcm2. a) DMF 5%(5.4%) and b) DMF 10%(11%).Back to article page