banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Nanostructured black silicon and the optical reflectance of graded-density surfaces
Rent this article for
View: Figures


Image of FIG. 1.
FIG. 1.

Cross-sectional SEM images of the (100) Si surface etched in (a) colloidal Au solution for 900 s, with arrows indicating nanopores entering the (011) cleavage plane. (b) solution for 80 s, with dashed lines indicating extrema of the density-grade depth found by computerized pixel correlation analysis. Inset to (b) is dark-field TEM (100-nm scalebar) of a nanopore and Au particle (indicated by arrow) produced by solution etching.

Image of FIG. 2.
FIG. 2.

Reflectance spectra taken after etching in black-etch solution for 80 s [SEM of Fig. 1(b)] and other times, as indicated; additional spectrum taken after 900 s etch in colloidal Au solution [SEM of Fig. 1(a)]. Inset shows at indicated wavelengths, normalized to the polished wafer , vs density-grade depth, .

Image of FIG. 3.
FIG. 3.

Reflectance of Si after solution etches lasting 10–90 s (10 s intervals). Each curve is labeled by its density-grade depth. is normalized to polished wafer and plotted vs scaled by . Due to light scattering, blue tails of each curve are not included in the exponential fit (solid line) to the rest of the data.


Article metrics loading...


Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nanostructured black silicon and the optical reflectance of graded-density surfaces