Answers are grounded in this paper and cite their sources.
Microstructural analysis reveals randomly distributed 3.5-nanometer silicon crystallites in porous silicon wafers, highlighting the structural basis of visible luminescence.
The microstructure of luminescent porous silicon, formed by electrochemical etching of silicon wafers has been characterized by cross-sectional high-resolution transmission electron microscopy. Results of this study reveal the structure to consist of Si crystallites. The crystallites are ∼3.5 nm in size and are randomly distributed throughout the porous Si region.
No takes yet. Share an insight, caveat, or question.
Cole et al. (1992) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: