ERBIUM LUMINESCENCE IN POROUS SILICON DOPED FROM SPIN-ON FILMS

被引:93
|
作者
DOROFEEV, AM [1 ]
GAPONENKO, NV [1 ]
BONDARENKO, VP [1 ]
BACHILO, EE [1 ]
KAZUCHITS, NM [1 ]
LESHOK, AA [1 ]
TROYANOVA, GN [1 ]
VOROSOV, NN [1 ]
BORISENKO, VE [1 ]
GNASER, H [1 ]
BOCK, W [1 ]
BECKER, P [1 ]
OECHSNER, H [1 ]
机构
[1] UNIV KAISERSLAUTERN, INST OBERFLACHEN & SCHICHTANAL, D-67663 KAISERSLAUTERN, GERMANY
关键词
D O I
10.1063/1.358735
中图分类号
O59 [应用物理学];
学科分类号
摘要
Erbium photoluminescence at room temperature and at 77 K has been observed from porous silicon doped with erbium from a spin-on silica gel film. Erbium incorporation into silicon dioxide at the surface of porous silicon and rapid thermal processing at temperatures higher than 1223 K were found to be a necessary prerequisite for erbium-related luminescence in porous silicon. No erbium diffusion into monocrystalline silicon from the spin-on films was observed. The depth-dependent erbium concentration in the bulk of porous silicon was determined by secondary-neutral- and secondary-ion-mass spectrometry depth profiling. The laterally resolved erbium distribution in the porous silicon was derived from energy-dispersive x-ray analysis. Possible mechanisms of erbium-related luminescence in porous silicon are discussed. © 1995 American Institute of Physics.
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页码:2679 / 2683
页数:5
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