The biexcitonic quenching and exciton migration rate in aromatic crystals
The biexcitonic quenching and exciton migration rate in aromatic crystals
复制标题
芳香族晶体中的双激子猝灭和激子迁移速率
DOI：
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发表时间：
1972
期刊：
影响因子：
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通讯作者：
S. Nagakura
中科院分区：
文献类型：
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作者：
Takayoshi Kobayashi;S. Nagakura
用氮气激光器研究了荧蒽和1，2，4，5-四氰基苯-均四甲苯配合物晶体的激子-激子相互作用引起的荧光猝灭，得到了两种晶体的双激子猝灭过程的速率常数γ和激子迁移速率λ。两种晶体的γ值均随温度的升高而增大。最后，我们得到了通过激子-声子耦合对激子输运有贡献的声子频率。
Fluorescence quenching due to exciton-exciton interaction was studied for the crystals of fluoranthene and 1,2,4,5-tetracyanobenzene-durene complex with the use of a nitrogen gas laser and the rate constant for the biexcitonic quenching process γ and the rate of the exciton migration λ were obtained for both crystals. The γ value for both crystals was found to increase with increasing temperature. Finally, we obtained the phonon frequency which contributes to the transport of excitons through exciton-phonon coupling.