Highly enhanced photoluminescence of as-anodized and electrochemically oxidized nanocrystalline p-type porous silicon treated by high-pressure water vapor annealing

Chemically modified porous silicon for laser desorption/ionization mass spectrometry of ionic dyes

“…[27] On the other hand, comparison of methylene blue mass spectra from PS-H and PS-OX platforms shows strong suppression of MB + desorption, lower energy of the [MB + 2H] + desorption, and much more intense [MB + H] +• fragmentation in the latter case (Fig. 4).…”

Effect of high-pressure water-vapor annealing on energy transfer in dye-impregnated porous silicon

“…The electrochemical oxidation was carried out at a current density of 50 mA/cm 2 until the potential of the PS electrode rose sharply, in a solution of H 2 SO 4 (1 M) [17]. Dye impregnation of these samples was performed after they were processed by HWA.…”

“…The surface of our as-anodized PS layers is hydrogenterminated [15,17]. The effect of HWA on the structure of PS has been studied using FTIR spectroscopy in previous works [15,17].…”

“…The PL spectra and PM of various samples have been investigated. Different experimental conditions and the effect of preliminary electrochemical oxidation [17] have been studied.…”

Silicon Nanocrystals in Porous Silicon and Applications

“…Recently, high-pressure water vapor annealing was used to stabilize PSi as well as its PL and electroluminescence, and to obtain very highly efficient PL [80][81][82][83][84][85][86]. PSi is placed inside a closed chamber with liquid water.…”