Physics – Condensed Matter – Materials Science
Scientific paper
2012-02-02
J. Phys. D: Appl. Phys. 44 315401 (2011)
Physics
Condensed Matter
Materials Science
11 pages, 3 figures
Scientific paper
10.1088/0022-3727/44/31/315401
Room-temperature 1535-nm-band photoluminescence in ~126 nm silica films (6 at. % doping), produced by spin-coating an Er2O3 and tetraethylorthosilicate sol-gel formulation on silicon substrates, was studied as a function of vacuum furnace annealing (500 to 1050 degrees C). Emission is strongly enhanced for annealing near 850 degrees C, which is shown by modeling the temperature dependence as arising from thermally-activated removal of hydroxyl ions. Suitability of such a process for silicon-based applications is discussed.
Abedrabbo Sufian
Fiory Anthony
Lahlouh Bashar
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