ELECTROLYTE FOR PRODUCING POROUS SILICON

ELECTROLYTE FOR PRODUCING POROUS SILICON

FIELD: electronic equipment, possibly manufacture of luminescent screens and displays. SUBSTANCE: electrolyte for making porous silicon by electrochemical etching of monocrystalline silicon contains aqueous (50%) solution of hydrofluoric acid and ethanol taken in relation 1:1 and it also contains si...

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Bibliographische Detailangaben
Hauptverfasser: VASENKOV A.A, BORISOV A.G, KORSAKOV V.S, TRUTNEV N.F, SAMSONOV N.S, PLAVICH L.A, MAZURENKO S.N
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS
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Zusammenfassung:FIELD: electronic equipment, possibly manufacture of luminescent screens and displays. SUBSTANCE: electrolyte for making porous silicon by electrochemical etching of monocrystalline silicon contains aqueous (50%) solution of hydrofluoric acid and ethanol taken in relation 1:1 and it also contains silica with concentration no more than 2 mol/l. Such electrolyte provides shift of spectrum of photoluminescence of porous silicon to visible band of spectrum. EFFECT: enhanced efficiency. 1 tbl, 1 ex