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[求助]
关于激发态的单重态和三重态
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由于相干的空穴和电子自旋进动，萌芽复合趋向于形成单重态激子对。然而，由于电子和空穴随机捕获，非萌芽复合产生的单重态和三重态激子对的比例为1:3。 原文“The germinate recombination tends to form singlet radical pairs due to coherent electron and hole spin precessions. However, the nongerminate recombination yields both singlet and triplet radical pairs with statistic ratios of 1:3 due to randomspin capture. ” 后面的1:3是怎么来的，没看懂，求解释 |
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谢谢，麻烦再看下。不可能把整篇文章贴上了，这部分原文the radical-pair formation undergoes spincoherent and spin-random captures, namely germinate and nongerminate recombination, respectively, under photoexcitation. The germinate recombination tends to form singlet radical pairs due to coherent electron and hole spin precessions. However, the nongerminate recombination yields both singlet and triplet radical pairs with statistic ratios of 1:3 due to randomspin capture. The singlet and triplet radical pairs can be mutually converted in both germinate and nongerminate recombination when the spin-flip mechanism is present due to hyperfine coupling (HFC) or spin–orbital coupling (SOC). |
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