Cross-sectional views of microporous silicon after the electrodeposition of silver for 1 min. Images of (a, b) and (c, d) show the samples of hydrophilic and hydrophobic microporous silicon substrates, respectively. The images in (a) and (c) illustrate the SEI, and (b) and (d) illustrate the BEI.
Koda et al. Nanoscale Research Letters 2012 7:330 doi:10.1186/1556-276X-7-330