کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7870780 1509190 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Metal 1D micro(nano) self-organized wires on semiconductor surface: Preparation, topology, and optical properties
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Metal 1D micro(nano) self-organized wires on semiconductor surface: Preparation, topology, and optical properties
چکیده انگلیسی
Preparation of selectively deposited wire-like 1D arrays of metal nanoparticles on patterned semiconductor surfaces is reported. A quasi-grating microrelief on the GaAs and InP (100) surfaces has been obtained by anisotropic etching in the mixture HF:H2SO4:H2O2 (2:2:1) and concentrated HCl, respectively. According to the AFM and SEM data, the quasi-periodic microrelief is a set of V-like grooves oriented along the [011] crystallographic direction, with a submicron period and a length over 10 μm. The gold coating has been grown by photostimulated chemical deposition. The surfaces with the quasi-periodic microrelief have been used as site templates for nanoparticle deposition. The EDX data show that gold particles are predominantly located at the microrelief tops and form a system of near-parallel wires. The metal-semiconductor system reflectance and the metal wire-like ensemble transmittance have been numerically simulated in the region of SPP excitation. The generalized effective-medium approximation has been invoked with regard to the gold coating anisotropy which results from the different electron scattering in the wire-parallel and perpendicular directions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 27, Issues 5–8, September 2007, Pages 1141-1144
نویسندگان
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