Size measurement of gold and silver nanostructures based on their extinction spectrum: limitations and extensions
Author(s):
Abstract:
This paper reports on physical principles and the relations between extinction cross section and geometrical properties of silver and gold nanostructures. We introduce some simple relations for determining geometrical properties of silver and gold nanospheres based on the situation of their plasmonic peak. We also applied، investigated and compared the accuracy of these relations using other published works in order to make clear the effects of shape، size distribution and refractive index of particles’ embedding medium. Finally، we extended the equations to non-spherical particles and investigated their accuracy. We found that modified forms of the equations may lead to more exact results for non-spherical metal particles، but for better results، modified equations should depend on shape and size distribution of particles. It seems that these equations are not applicable to particles with corners sharper than cubes'' corners i. e. nanostructures with spatial angles less than π/2 sr.
Keywords:
Language:
Persian
Published:
Iranian Journal of Physics Research (IJPR), Volume:13 Issue: 1, 2013
Pages:
23 to 34
magiran.com/p1160944
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!