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团子小姐

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Stimuli-responsive materials are attracting considerable attention, especially organic dyes whose luminescence can be repeatedly switched by external stimuli. In principle, it could be readily realized that luminescent efficiency and colour are tuned simultaneously, which accompanies the altering of the molecular stacking pattern upon external stimuli. However, the overwhelming majority of materials present transformation of colour3 rather than a change of emission efficiency, which makes it difficult to satisfy the needs of high-contrast luminescence recording. Using a dramatic switching in emission intensity has recently been presented by Park’s group to settle this intractable issue.
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RXMCDM: 金币+1, 多谢应助! 2014-10-12 08:32:40
团子小姐: 金币+8, 翻译EPI+1, ★★★★★最佳答案 2014-10-12 08:39:07
刺激响应性材料正被引起相当大的关注,特别是发光可通过外部刺激可以反复切换的有机染料。原则上,可以很容易地实现发光效率和颜色被同时调整,并在外部刺激下伴随分子堆积模式的改变。然而,绝大多数的材料表现为颜色的转换而非发光效率的变化,这使得它难以满足高对比度的荧光记录的需要。Park团队最近用发光强度的急剧转换来解决这个棘手的问题。
2楼2014-10-12 06:13:39
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