Effect of plasma etching on photoluminescence of SnOx/Sn nanoparticles deposited on DOPC lipid membrane

Title
Effect of plasma etching on photoluminescence of SnOx/Sn nanoparticles deposited on DOPC lipid membrane
Authors
안현환이승재백승하한원배김영호윤종승서상희
Keywords
Photoluminescence; Tin oxide nanoparticles; Phospholipid; Lipid membrane
Issue Date
2012-02
Publisher
Journal of colloid and interface science
Citation
VOL 368, NO 1, 257-262
Abstract
The photoluminescence characteristic of the SnOx/Sn nanoparticles deposited on a solid supported liquid–crystalline phospholipid (1,2-dioleoyl-sn-glycero-3-phosphocholine) membrane was probed after plasma etching the nanoparticle monolayer. It was shown that the plasma etching of the nanoparticle surface greatly altered the particle morphology and enhanced the PL effect, especially when the particle size was below 10 nm in spite of strong presence of surrounding carbon. The enhancement mainly stemmed from the growth of a new PL peak due to the additional defect states produced on the nanoparticle surface by the plasma etching. It was also shown that hydrating the SnOx/Sn nanoparticles similarly improved the PL response of the nanoparticles as the hydration produced an additional oxygen-rich oxide layer on the particle surface.
URI
http://pubs.kist.re.kr/handle/201004/41992
ISSN
00219797
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KIST Publication > Article
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