Structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method
Nanogold is a type of metallic nanostructures and it is very sensitive to the dielectric environment of the materials due to strong dependency of plasmon on shapes and sizes. The unique properties of gold nanostructures can be implemented as sensing material in Localized Surface Plasmon Resonance (L...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
UTEM
2017
|
| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/4783/ http://eprints.uthm.edu.my/4783/1/AJ%202017%20%28636%29.pdf |
| _version_ | 1848888380231778304 |
|---|---|
| author | Mohamed Ali, Nor Salihah Ibrahim, Farah Nur Diyana Morsin, Marlia Mat Salleh, Muhammad Jumadi, Nur Anida Morsin, Marriatyi |
| author_facet | Mohamed Ali, Nor Salihah Ibrahim, Farah Nur Diyana Morsin, Marlia Mat Salleh, Muhammad Jumadi, Nur Anida Morsin, Marriatyi |
| author_sort | Mohamed Ali, Nor Salihah |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | Nanogold is a type of metallic nanostructures and it is very sensitive to the dielectric environment of the materials due to strong dependency of plasmon on shapes and sizes. The unique properties of gold nanostructures can be implemented as sensing material in Localized Surface Plasmon Resonance (LSPR) sensor. This paper reports an experimental study on growth time effect towards structural and optical properties of gold nanosphericals (AuNSs). The gold nanoplates have been grown on a substrate using seed mediated growth method (SMGM). In this study, the growth time was varied from 30 minutes to seven hours. The largest size of AuNSs is ~ 82.67 nm obtained from 7 hours growth time sample. XRD analysis shows a peak of the diffraction angle occurs at the plane (111) in position ~ 38.19º. The optical absorption spectra of all samples show resonance peaks in the range of 530 nm to 560 nm, which are corresponding to the transverse surface plasmon resonance (t-SPR). Thus, in this study, it was found that the growth time affected the growth of the gold nanostructures with optimum growth time of seven hours. Longer growth time resulted in the larger size of AuNSs and therefore, it is not very suitable to be used in LSPR sensing application. |
| first_indexed | 2025-11-15T20:09:22Z |
| format | Article |
| id | uthm-4783 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:09:22Z |
| publishDate | 2017 |
| publisher | UTEM |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-47832021-12-16T06:15:12Z http://eprints.uthm.edu.my/4783/ Structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method Mohamed Ali, Nor Salihah Ibrahim, Farah Nur Diyana Morsin, Marlia Mat Salleh, Muhammad Jumadi, Nur Anida Morsin, Marriatyi QD Chemistry Nanogold is a type of metallic nanostructures and it is very sensitive to the dielectric environment of the materials due to strong dependency of plasmon on shapes and sizes. The unique properties of gold nanostructures can be implemented as sensing material in Localized Surface Plasmon Resonance (LSPR) sensor. This paper reports an experimental study on growth time effect towards structural and optical properties of gold nanosphericals (AuNSs). The gold nanoplates have been grown on a substrate using seed mediated growth method (SMGM). In this study, the growth time was varied from 30 minutes to seven hours. The largest size of AuNSs is ~ 82.67 nm obtained from 7 hours growth time sample. XRD analysis shows a peak of the diffraction angle occurs at the plane (111) in position ~ 38.19º. The optical absorption spectra of all samples show resonance peaks in the range of 530 nm to 560 nm, which are corresponding to the transverse surface plasmon resonance (t-SPR). Thus, in this study, it was found that the growth time affected the growth of the gold nanostructures with optimum growth time of seven hours. Longer growth time resulted in the larger size of AuNSs and therefore, it is not very suitable to be used in LSPR sensing application. UTEM 2017 Article PeerReviewed text en http://eprints.uthm.edu.my/4783/1/AJ%202017%20%28636%29.pdf Mohamed Ali, Nor Salihah and Ibrahim, Farah Nur Diyana and Morsin, Marlia and Mat Salleh, Muhammad and Jumadi, Nur Anida and Morsin, Marriatyi (2017) Structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method. Journal of Telecommunication, Electronic and Computer Engineering, 9 (3-8). pp. 67-71. ISSN 2180-1843 |
| spellingShingle | QD Chemistry Mohamed Ali, Nor Salihah Ibrahim, Farah Nur Diyana Morsin, Marlia Mat Salleh, Muhammad Jumadi, Nur Anida Morsin, Marriatyi Structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method |
| title | Structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method |
| title_full | Structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method |
| title_fullStr | Structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method |
| title_full_unstemmed | Structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method |
| title_short | Structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method |
| title_sort | structural and optical properties of gold nanosphericals in variation of growth time using seed mediated growth method |
| topic | QD Chemistry |
| url | http://eprints.uthm.edu.my/4783/ http://eprints.uthm.edu.my/4783/1/AJ%202017%20%28636%29.pdf |