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zhangwei章薇

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In addition to the above visual   fluorescence images, the  fluorescence emission spectra in the pressing experiment were recorded on a luminescence spectrophotometer (Fig. 4), and the corresponding spectroscopic data is summarized in Table 1. All the ground FCn samples show similar emission spectra whose peak wavelengths are in a relatively narrow range of 616–595 nm, although their peak emission wavelengths in pristine solids are very different (597–538 nm) (Table 1). Moreover, most pressed samples can revert back to the  fluorescence emission similar to the pristine solids upon annealing or solvent-fuming. In terms of pressing-induced
spectral shift (Δλ(PFC)=λpressed--λannealed) FCn with longer N-alkyl chains show a more remarkable PFC behaviour ΔλPFC=( 45–54 nm), and those with shorter N-alkyl chains have ΔλPFC  of 23–30 nm (Table 1).
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RXMCDM: 金币+1, 多谢应助! 2014-10-09 14:53:28
zhangwei章薇: 金币+12, 翻译EPI+1 2014-10-09 17:38:54
除了上述的可视荧光图像,在按压试验中的荧光发射光谱记录在发光分光光度计上(图4),相应的光谱数据总结于表1中。所有的研磨FCN样本具有相似的发射光谱,其峰值波长在相对窄的范围内(616-595纳米),尽管在原始的固体其峰值发射波长有很大的不同(597-538纳米)(表1)。此外,大多数按压样品通过退火或溶剂型发烟可以恢复到与原始固体相似的荧光发射。就按压引起的谱移(Δλ(PFC)=λ按压 - λ退火),具有较长N-烷基链的FCn具有更显着的PFC特性ΔλPFC=(45-54纳米),那些具有较短N-烷基链的FCn其ΔλPFC为23 -30nm(表1)。
2楼2014-10-09 11:40:03
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