利用时间分辨热透镜技术研究C_(60)三线态

The Study of the Triplet State of C 60 by a Time resolved Thermal Lensing Technique

利用时间分辨热透镜技术测定了Ｃ６０的三线态量子产额（ＩＳＣ）、三线态寿命（τＴ）以及苯溶液中溶解氧通过猝灭Ｃ６０三线态而生成的单线态氧的量子产额（Δ）、氧的单线态寿命（τ０）。ＩＳＣ和Δ的值约为１，τＴ的值在８～６０μｓ范围内，τ０的值为２０μｓ。

The quantum yield of triplet formation (φ ISC ) and the triplet lifetime (τ T) of C 60 , as well as the quantum yield of singlet oxygen formation (φ Δ ) by the quenching of the triplet state of C 60 and the singlet lifetime (τ 0) of oxygen are measured by a time resolved thermal lensing technique. Both φ ISC  and φ Δ  are nearly unity and the lifetimes of both the triplet C 60 and the singlet oxygen are in the range of 8￣60 μs and 20 μs respectively.