Observation of Two-Photon Induced Excited-State Absorption Phenomena in C60 and C70 Derivatives

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（8）
• 页码范围: 247-249
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/8/087801

摘要

Four fullerene dyads with different cabazole units,named a,b,c,d,were studied by using a femtosecond laser with 780 nm wavelength using Z-scan methods.Interestingly,all of them show strong two-photon induced excitedstate absorption behaviors,which were observed firstly in femtosecond timescale.The values of their excited-state absorption cross-section were up to 6.07 × 10-18,7.27 × 10-18,3.86 × 10-18 and 4.51 × 10-18 cm-1 for a,b,c,and d,respectively.