- 作者: 於平, 許瑛珍, 陳逸聰, 林聖賢
- 作者服務機構: Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, R.O.C.
- 中文摘要: Time-resolved transient absorption technique is used to investigate the thickness dependence of acoustic phonon modes of silver nanoprisms with two thicknesses, 7.8 ± 1.2 and 8.5 ± 0.69 nm, and a similar bisector length of 31.4 ~ 31.6 nm. Coherent acoustic phonon signals are observed. A new acoustic phonon frequency within 7.81 cm-1 ~ 11.7 cm-1 is found and this phonon mode is associated with the thickness of the nanoprism. Another phonon frequency between 1.95 cm-1 and 1.71 cm-1 is also observed, and its origin can be associated with the bisector length of the nanoprism.
- 英文摘要: --
- 中文關鍵字: Nanoprism; Thickness correlated phonon.
- 英文關鍵字: --