کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7922923 1511803 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface-enhanced Raman scattering active gold nanostructure fabricated by photochemical reaction of synchrotron radiation
ترجمه فارسی عنوان
نانوساختار طلای فعال پراکندگی رامان سطح تولید شده توسط واکنش فتوشیمیایی اشعه سینکروترون
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
The deposition of gold nanoparticles in an electroplating solution containing gold (I) trisodium disulphite under synchrotron X-ray radiation was investigated. The nanoparticles grew and aggregated into clusters with increasing radiation time. This behavior is explained by evaluating the effect of Derjaguin-Landau-Verweyand-Overbeek (DLVO) interactions combining repulsive electrostatic and attractive van der Waals forces on the particle deposition process. The surface-enhanced Raman scattering (SERS) of 4,4′ -bipyridine (4bpy) in aqueous solution was measured using gold nanoparticles immobilized on silicon substrates under systematically-varied X-ray exposure. The substrates provided an in situ SERS spectrum for 1 nM 4bpy. This demonstration creates new opportunities for chemical and environmental analyses through simple SERS measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 160, 15 June 2015, Pages 205-211
نویسندگان
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