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1. 山西大学 化学化工学院,山西 太原,030006
2. 中国电子科技集团公司第三十三研究所 电磁防护技术山西省重点实验室,山西 太原,030006
纸质出版日期:2015-2-3,
收稿日期:2014-11-13,
修回日期:2014-12-4,
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赵亚丽, 李克训, 马富花等. 纳米Ag颗粒复合薄膜的制备及其吸收特性[J]. 发光学报, 2015,36(2): 231-236
ZHAO Ya-li, LI Ke-xun, MA Fu-hua etc. Ag Nano Particle Composite Film Preparation and Surface Absorption Characteristics[J]. Chinese Journal of Luminescence, 2015,36(2): 231-236
赵亚丽, 李克训, 马富花等. 纳米Ag颗粒复合薄膜的制备及其吸收特性[J]. 发光学报, 2015,36(2): 231-236 DOI: 10.3788/fgxb20153602.0231.
ZHAO Ya-li, LI Ke-xun, MA Fu-hua etc. Ag Nano Particle Composite Film Preparation and Surface Absorption Characteristics[J]. Chinese Journal of Luminescence, 2015,36(2): 231-236 DOI: 10.3788/fgxb20153602.0231.
利用磁控溅射分层制备Ag和SiO
2
薄膜
通过快速热处理
使Ag颗粒富集在复合薄膜的表面.研究了Ag膜层厚度、退火时间、退火温度和退火方式对Ag颗粒形貌的影响
以及Ag颗粒致密度对其共振吸收的影响.结果表明:通过控制每层Ag膜的厚度
可有效控制Ag颗粒形貌.当每层金属为2 nm、退火温度为500 ℃时
形成的颗粒粒径大小均匀且致密度较高.通过间断退火可有效降低Ag颗粒的粒径.发现Ag颗粒表面等离子共振吸收并没有随颗粒粒径的减小而明显降低
甚至提高.这和以往的报道不同.通过深入研究金属颗粒表面等离子体产生机理
发现其表面等离子共振吸收增强的原因是致密度较高的颗粒表面能级与费米能级差值较大
Ag颗粒内部的电子向颗粒表面迁移越多
形成新的费米能级
E
'
F
的电子数就越多
表面等离子共振吸收就越强.最终得出了金属颗粒共振吸收不单纯依赖于金属粒径、和颗粒的致密度也有很大关系的结论.
Ag and SiO
2
films were prepared by RF magnetron sputtering layer by layer. Ag nanoparticles diffused towards and mostly assembled near the surfaces of composite films
via
ripid thermal treatment. The effects of the thickness of each Ag film
the thermal treatment time
temperature and process on the Ag particle morphology were investigated. The relationship of Ag particles density with the resonance absorption was researched
too. It is found that different Ag particle shapes can be obtained by changing the thickness of each Ag film. The smaller Ag particles can be obtained by intermittent thermal treatment. The Ag particle density and particle uniformity can be improved by annealing at 500 ℃. The result in this paper is different from previous reports. Namely
the surface plasmon resonance absorption of Ag particles does not significantly decrease with the decreasing of particle size
even improves. It is found that the higher the density of the Ag particles is
the larger of the difference between the particle surface energy level and Fermi level is. With the migrating of the electrons from the particle interior to the surface
the electron number to form new Fermi level
E'
F
increases
so the surface plasmon resonance absorption becomes stronger. Finally
we draw a conclusion that the metal particle resonance absorption not only relies on the metal particle size
but also greatly relies on the particle density.
颗粒致密度表面等离子体退火费米能级共振吸收
particle densitysurface plasmathermal treatmentFemi levelresonance absorption
Maier S A, Kik P G, Atwater H A. Observation of coupled plasmon-polariton modes in Au nanoparticle chain waveguides of different lengths: Estimation of waveguide loss [J]. Appl. Phys. Lett., 2002, 81(9):1714-1716.
Tenzel O, Stendal A, Voigtsberger K, et al. Enhancement of the photovoltaic conversion efficiency of copper phthalocyanine thin-film devices by incorporation of metal-clusters [J]. Solar Energy Mater. Solar Cells, 1995, 37(3-4):337-348.
Neutens P, Van Dorpe P, De Vlaminck I, et al. Electrical detection of confined gap plasmons in metal-insulator-metal waveguides [J]. Nat. Photon., 2009, 3(5):283-286.
Xu L M, Zhang Z L, Cai Y, et al. Phsical mechanisms of fluorescence enhancement at metal surface [J]. Chin. J. Lumin.(发光学报), 2009, 30(3):373-378 (in Chinese).
Pala R A, White J, Barnard E, et al. Design of plasmonic thin-film solar cells with broadband absorption enhancements [J]. Adv. Mater., 2009, 21(34):3504-3509.
Konstantators G, Sargent E H. Nanostructured materials for photon detection [J]. Nat. Nanotechnol., 2010, 5:391-400.
Yang Y M, Yang Z P, Zhang F S, et al. Spectroscopic properties of Er3+ doped borate glass containing more silver [J]. Chin. J. Lumin.(发光学报), 2009, 30(1):47-50 (in Chinese).
Boltasseva A, Volkov V S, Nielsen R B, et al. Triangular metal wedges for subwavelength plasmon-polariton guiding at telecom wavelengths [J]. Opt. Express, 2008, 16(8):5252-5260.
Schuller J A, Barnard E S, Cai W S, et al. Plasmonics for extreme light concentration and manipulation [J]. Nat. Mater., 2010, 9(3):193-204.
Moreno E, Garcia-Vidal F J, Rodrigo S G. Channel plasmon-polaritons: Modal shape, dispersion, and losses [J]. Opt. Lett., 2006, 31(23):3447-3449.
Venables J A, Spiller T G D, Hanbucken M. Nucleation and growth of thin films [J]. Rep. Prog. Phys., 1984, 47(4):399-459.
Seol M L, Kim J H, Kang T, et al. Multi-layer nanogap array for high-performance SERS structure [J]. Nanotechnology, 2011, 22(6):235303-1-5.
Blanco L A, Garcia de Abajo F J. Spontaneous light emission in complex nanostructures [J]. Phys. Rev. B, 2004, 69(13):205414-1-5.
Zhao Y L, Gao F, Wang Z B, et al. Morphology and absorption properties of Ag-SiO2 composite film [J]. Acta Phys. Sinica (物理学报), 2007, 56(6):3564-3569 (in Chinese).
Zhao Y L, Xu X L, Ming H. Effect of Ag particle morphology absorption properties of Ag-SiO2 composite film [J]. J. Inorg. Mater.(无机材料学报), 2008(2):351-356 (in Chinese).
Zhao Y L, Ming H, Xu X L. Ag-MgF2 composite films deposited by RF magnetron sputtering [J]. J. Func. Mater.(功能材料), 2007, 38(3):386-388 (in Chinese).
Giesen M G, Schulze L K, Ibach H. Interlayer mass transport and quantum confinement of electronic states [J]. Phys. Rev. Lett., 1999, 82(15):3101-3104.
Vidal G F J, Pendry J B. Collective theory for surface enhanced Raman scattering [J]. Phys. Rev. Lett., 1996, 77(6):1163-1166.
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