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对C60 的时间分辨脉冲热透镜光谱进行了数学上的解析 ,得到了表征时间分辨脉冲热透镜信号的光强ITL(t)随时间变化的理论模型 ,此模型符合实验结果 .并根据此模型得到了苯溶液中溶解氧通过猝灭C60 三线态而生成的单线态氧的绝对量子产额 (ΦΔ)的表达式和C60 的本征三线态寿命 (τT)为 10 2 μs .
The mathematical model of the time-resolved impulse thermal lens spectrum of C60 is mathematically resolved and the theoretical model of ITL (t), which characterizes the time-resolved impulse thermal lens signal with time, is obtained. The model is in good agreement with the experimental results. The expression of absolute quantum yield (ΦΔ) of singlet oxygen generated by quenching C60 triplet state of dissolved oxygen in benzene solution and the intrinsic triplet life (τT) of C60 is 10 2 μs.