کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9566937 1503709 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
UV-initiated growth of gold nanoparticles in PMMA matrix
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
UV-initiated growth of gold nanoparticles in PMMA matrix
چکیده انگلیسی
Polymethylmethacrylate (PMMA) films containing HAuCl4 (number density of 6 × 1019 cm−3) were irradiated by a UV lamp and then annealed at various temperatures. The modification of the samples was investigated by in situ optical absorption spectroscopy and atomic-force microscopy (AFM). The disappearance of HAuCl4 followed by gold nanoparticles growth in the films was revealed. The evolution of the size distribution of the nanoparticles during annealing was investigated using the Mie theory. The growth kinetics model based on the non-stationary first-order phase transition theory estimates a critical radius of 2 nm for the growing nanoparticles at 75 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 248, Issues 1–4, 30 July 2005, Pages 181-184
نویسندگان
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