Journal
OPTICAL MATERIALS
Volume 27, Issue 5, Pages 1046-1049Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2004.08.060
Keywords
-
Categories
Ask authors/readers for more resources
Colloidal suspesions of Si nanocrystals (NCs) are prepared from light-emitting porous Si grains obtained by mechanical pulverization of electrochemically etched layers. Sedimented and/or filtered Si NCs sols reveal a green photoluminescence (PL) band around 530nm, which is interpreted as radiative recombination of electron-hole pairs inside Si NCs with diameter about 2nm. These colloidal solutions have multiple advantages for both fundamental investigations and for nanotechnology. In one extreme, single molecule spectroscopy techniques can be applied to investigate PL of single grains of Si NCs dispersed on substrates from highly diluted solutions. On the other hand, concentrated suspensions enable us to fabricate bulk samples with embedded Si NCs or to prepare self-organised nanostructures on surfaces. (c) 2004 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available