التفاصيل البيبلوغرافية
| العنوان: |
Seed-mediated synthesis of high aspect ratio gold nanorods with nitric acid |
| المؤلفون: |
Wu HY, Chu HC, Kuo TJ, Kuo CL, Huang MH |
| المساهمون: |
黃暄益 |
| بيانات النشر: |
American Chemical Society |
| سنة النشر: |
2005 |
| المجموعة: |
National Tsing Hua University Institutional Repository (NTHUR) |
| مصطلحات موضوعية: |
WET CHEMICAL SYNTHESIS, DIRECTED SYNTHESIS, OPTICAL-PROPERTIES, AQUEOUS-SOLUTION, SILVER NANORODS |
| الوقت: |
31 |
| الوصف: |
2010314010028 ; 化學系 ; We report a new approach for the seed-mediated synthesis of gold nanorods with high aspect ratios by the addition of nitric acid. Various amounts of nitric acid were added during nanorod growth to significantly enhance the production of high aspect ratio nanorods. The resulting nanorods have uniform diameters of 19-20 nm and can reach lengths of 400-500 nm to yield nanorods with average aspect ratios of 21-23. The nanorods represent a large fraction of the gold nanostructures synthesized, with triangular, truncated triangular, and hexagonal nanoplates about 120-200 nm in width making up rest of the gold nanostructures formed. These nanorods spontaneously self-assemble into a high-density three-dimensional packing structure with the nanorods arranged side-by-side and end-to-end. These nanorods possess a 5-fold twinned structure with ten {111} end faces and five {100} side faces. UV-vis absorption spectrum shows a transverse plasmon absorption band at 508 nm. The longitudinal plasmon absorption band should appear beyond 2500 nm due to the extremely long length of these nanorods. The presence of nitrate ions, rather than the slight pH change caused by nitric acid, is believed to have a greater effect on the formation of these nanorods |
| نوع الوثيقة: |
journal/newspaper |
| اللغة: |
English |
| تدمد: |
0897-4756 |
| العلاقة: |
Chemistry of Materials,ACS American Chemical Society,Volume: 17,Issue: 25,Pages: 6447-6451,Published: DEC 13 2005; http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/57101Test |
| الإتاحة: |
http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/57101Test |
| رقم الانضمام: |
edsbas.C022686C |
| قاعدة البيانات: |
BASE |
