Blue light emission from silicon surfaces prepared by spark-erosion and related techniques
- 30 May 1994
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 64 (22) , 3006-3008
- https://doi.org/10.1063/1.111386
Abstract
We have investigated the photoluminescence(PL) of siliconsurfacestreated by spark‐erosion and related techniques as a function of gas composition and pressure.PL emission in the wavelength range of 400–550 nm and with decay times ≤5 ns has been observed. PLquantum efficiencies comparable to that of standard wet chemically prepared porous silicon are obtained. We have never found significant PL emission in the red spectral range. Our dry plasma techniques for the preparation of luminescent siliconsurfaces are a promising alternative to the common anodizing process in hydrofluoric solutions.Keywords
This publication has 18 references indexed in Scilit:
- Visible light emission from Si materialsJournal of Luminescence, 1993
- Preparation of porous silicon by spark erosionJournal of Luminescence, 1993
- Critical conditions for achieving blue light emission from porous siliconApplied Physics Letters, 1993
- Light from Silicon—Renaissance of Siloxene and Polysilane?Angewandte Chemie International Edition in English, 1993
- The origin of visible luminescencefrom “porous silicon”: A new interpretationSolid State Communications, 1992
- Fast Photoluminescence from Porous SiliconMRS Proceedings, 1992
- Optical properties of silicon network polymersMacromolecules, 1990
- The photoluminescence of poly(methylphenylsilylene): the origin of the long-wavelength broad bandMacromolecules, 1989
- Electronic spectra of polysilanesMacromolecules, 1987
- Decay time and polarization properties of luminescence centers in vitreous silicaPhysica Status Solidi (a), 1978