کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7906680 1510755 2018 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Variations in thermo-optical properties of neutral red dye with laser ablated gold nanoparticles
ترجمه فارسی عنوان
تغییرات در خواص ترمو نوری رنگ قرمز خنثی با نانوذرات طلا لیزر خرد شده
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
We have investigated the thermal and optical properties of neutral red dye incorporated with different weight percentage of gold nanoparticles prepared by laser ablation method. Optical absorption studies confirmed the production of spherical nanoparticles and also the interactions of the dye molecules with gold nanoparticles. The quenching of fluorescence and the reduction in the lifetime of gold incorporated samples were observed and was due to the non-radiative energy transfer between the dye molecules and gold nanoparticles. Dual beam thermal lens technique has been employed to measure the heat diffusion in neutral red with various weight percentage of gold nano sol dispersed in ethanol. The significant outcome of the experiment is that, the overall heat diffusion is slower in the presence of gold nano sol compared to that of dye alone sample. Brownian motion is suggested to be the main mechanism of heat transfer under the present conditions. The thermal diffusivity variations of samples with respect to different excitation power of laser were also studied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 79, May 2018, Pages 237-242
نویسندگان
, , , , , ,