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Gold nanoclusters on GaAs(001) surface: atomic force microscopy and optical spectroscopy of plasmons

机译：GaAs（001）表面上的金纳米载体：原子力显微镜和等离子光谱

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Gold nanoclusters of two different kinds are found to occur on annealing of thin Au films deposited on either oxidized or nitridized GaAs(001) surfaces. The morphology of Au/GaAs interfaces is characterized, and the gold nanoclusters are established to cause two resonant peaks in optical reflectance spectra at the energies of 1.6 eV and 2.15 eV. Using the data of reflection spectroscopy and theoretical analysis, we assign the latter peak to localized plasmons of Au nanoislands located on Au/GaAs surface. The former peak is attributed to plasmons of prolate Au nanoclusters buried in GaAs crystal just near its surface. As well, plasmonic anisotropy of Au nanoclusters formed on nitridized GaAs surfaces is detected using reflectance anisotropy spectroscopy.

机译：发现两种不同种类的金纳米能器发生在沉积在氧化或氮化的GaAs（001）表面上的薄Au膜的退火。 Au / GaAs界面的形态表征，建立金纳米或金纳克蛋白在1.6eV和2.15eV的能量下的光学反射光谱中引起两个共振峰。使用反射光谱和理论分析的数据，我们将后峰分配给位于Au / GaAs表面的Au Nanoisland的局部峰值。前峰值归因于靠近其表面的GaAs晶体中的增殖Au纳米蛋白质等离子体。同样，使用反射率各向异性光谱检测形成在氮化的GaAs表面上形成的Au纳米团簇的等离子能检查。

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《International Conference PhysicA.SPb》|2020年|p1-786|共6页
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V.L. Berkovits; P.A. Alekseev; V.A. Kosobukin; V.P. Ulin; F.Yu. Soldatenkov; I.V. Zgerskii;
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中图分类计量学;
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4. Gold nanoclusters on GaAs(001) surface: atomic force microscopy and optical spectroscopy of plasmons [C] . V.L. Berkovits, P.A. Alekseev, V.A. Kosobukin, International Conference PhysicA.SPb . 2020

机译：GaAs（001）表面上的金纳米载体：原子力显微镜和等离子光谱
5. Studies of single nanoparticle systems by localized surface plasmon resonance spectroscopy, atomic force microscopy, transmission electron microscopy, and combinations thereof [D] . Sherry, Leif Jorstad 2007

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7. High-resolution scanning force microscopy of gold nanoclusters on the KBr (001) surface [O] . Pakarinen O. H., Barth C., Foster Adam S., 2006

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8. Characterization of organic monolayers at gold surfaces using scanning tunneling microscopy and atomic force microscopy correlation with macrostructural properties [R] . Alves, CA 1992

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Gold nanoclusters on GaAs(001) surface: atomic force microscopy and optical spectroscopy of plasmons

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