title: Effect of plasma etching on photoluminescence of SnO(x)/Sn nanoparticles deposited on DOPC lipid membrane.
abstract: The photoluminescence characteristic of the SnO(x)/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 SnO(x)/Sn nanoparticles similarly improved the PL response of the nanoparticles as the hydration produced an additional oxygen-rich oxide layer on the particle surface.
authors.affiliation: Division of Materials Science and Engineering, Hanyang University, Seoul 133-791, Republic of Korea.
authors.forename: Hyeun Hwan
authors.initials: HH
authors.lastname: An
authors.forename: Seung Jae
authors.initials: SJ
authors.lastname: Lee
authors.forename: Seung Ha
authors.initials: SH
authors.lastname: Baek
authors.forename: Won Bae
authors.initials: WB
authors.lastname: Han
authors.forename: Young Ho
authors.initials: YH
authors.lastname: Kim
authors.forename: Chong Seung
authors.initials: CS
authors.lastname: Yoon
authors.forename: Sang Hee
authors.initials: SH
authors.lastname: Suh
mesh_terms: D008051:Lipid Bilayers / Q000737:chemistry*; D049449:Luminescence; D008563:Membrane Lipids / Q000737:chemistry*; D053758:Nanoparticles; D010316:Particle Size; D010713:Phosphatidylcholines / Q000737:chemistry*; D014001:Tin / Q000737:chemistry*; D017971:Tin Compounds / Q000737:chemistry*
chemical_list: D008051:Lipid Bilayers; D008563:Membrane Lipids; D010713:Phosphatidylcholines; D017971:Tin Compounds; D014001:Tin; C017251:1,2-oleoylphosphatidylcholine; C045358:stannic oxide