- 作者: 歐俊昌, 葉惠雯, 張舫嫕, 楊鐘松
- 作者服務機構: Department of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan, R.O.C.
- 中文摘要: A novel two-component peak quantitative spectra deconvolution model is employed to elucidate the relationship between the plasmonic properties and the concentration-dependent Au nanocrystals nucleation. The reactions with the initial concentration of starting reagent NaAuCl4 from 0.75 mM to 0.1 mM are monitored. The peak area variation between component peak (b), large size nanoparticles (d 3 8.1 nm), and component peak (a), small size nanoparticles (d £ 8.0 nm), demonstrates that the initial concentration of NaAuCl4 plays a decisive factor to determine the (b/a) ratio, i.e. the growth progresses of Au nanoparticles. If the initial concentration of NaAuCl4 is higher than 0.2 mM, two independent growth progresses of Au nanoparticles are observed, and a continuous lmax blue-shift of surface plasmon absorption peak accompanied with the second growth progress is measured. On the other hand, in the reactions with the initial concentration of NaAuCl4 lower than 0.2 mM, only one crystal growth progress of Au nanoparticles is shown, and the blue-shift phenomenon of absorption peak induced by the second crystal growth progress no longer exists.
- 英文摘要: --
- 中文關鍵字: Photosynthesis; Plasmon spectra; Spectra deconvolution; Size programming.
- 英文關鍵字: --