| Автор | Singhal, R |
| Автор | Agarwal, D C |
| Автор | Mishra, Y K |
| Автор | Singh, F |
| Автор | Pivin, J C |
| Автор | Chandra, R |
| Автор | Avasthi, D K |
| Дата выпуска | 2009-08-07 |
| dc.description | We report the electronic excitation induced controlled tuning of the surface plasmon resonance (SPR) wavelength of Ag nanoparticles (NPs) in fullerene C<sub>70</sub> matrix. The transformation of fullerene C<sub>70</sub> into amorphous carbon (a:C) under ion irradiation is used to tune the SPR wavelength of C<sub>70</sub>–Ag nanocomposite thin films. A 100 nm blue shift was recorded for irradiation at a fluence of 3 × 10<sup>13</sup> ions cm<sup>−2</sup> by 120 MeV Ag ions. A growth of Ag NPs from 7.0 ± 0.8 to 11.0 ± 0.4 nm with increasing fluence was observed by transmission electron microscopy and it is explained in the framework of thermal spike model. The transformation of fullerene C<sub>70</sub> into amorphous carbon with ion irradiation was confirmed by Raman spectroscopy. This work demonstrates the possibility to locally excite the SPR at a desired wavelength and therefore, acquiring multiple SPR bands at a single substrate which could be useful in developing more efficient optical sensors. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2009 IOP Publishing Ltd |
| Название | Electronic excitation induced tuning of surface plasmon resonance of Ag nanoparticles in fullerene C<sub>70</sub> matrix |
| Тип | paper |
| DOI | 10.1088/0022-3727/42/15/155103 |
| Electronic ISSN | 1361-6463 |
| Print ISSN | 0022-3727 |
| Журнал | Journal of Physics D: Applied Physics |
| Том | 42 |
| Первая страница | 155103 |
| Последняя страница | 155109 |
| Аффилиация | Singhal, R; Inter University Accelerator Centre, Post Box No. 10502, New Delhi 110067, India; |
| Аффилиация | Agarwal, D C; Inter University Accelerator Centre, Post Box No. 10502, New Delhi 110067, India |
| Аффилиация | Mishra, Y K; Functional Nanomaterials, Institute for Materials Science Christian-Albrechts-University Kaiserstraße 2, 24143 Kiel, Germany |
| Аффилиация | Singh, F; Inter University Accelerator Centre, Post Box No. 10502, New Delhi 110067, India |
| Аффилиация | Pivin, J C; CSNSM, IN2P3-CNRS, Batiment 108, F-91405 Orsay Campus, France |
| Аффилиация | Chandra, R; Institute Instrumentation Centre, Indian Institute of Technology Roorkee, Roorkee 247667, India |
| Аффилиация | Avasthi, D K; Inter University Accelerator Centre, Post Box No. 10502, New Delhi 110067, India |
| Выпуск | 15 |
