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Presents information on a study conducted which performed photoluminescence (PL) calculations of oxidized and fresh porous silicon layers versus the temperature under different atmospheres. Characteristics of porous silicon layers obtained by electrochemical etching in hydrofluoric acid solutions; Presentation of PL spectra versus the temperature of an oxidized porous silicon layer; Methodology of the study; Results of the study.

Reports that two kinds of porous silicon layers were impregnated with laser dyes solutions before drying. Estimation of the concentration of the dye molecules in the pores; Rapid luminescence of the laser dye.

Investigates the relationship between photoluminescence (PL) and voltage-tunable electroluminescence (EL) on porous silicon (Si)-electrolyte system. Formation of porous Si by anodization; Similarity of origin between PL and EL; Correlation of EL tunability with size-distributed Si nanocrystallites.