在光照辐射后在现场制备高光染料
Kakishi Uno1, Hiroyuki Niikura, Masakazu Morimoto
1Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro 3-34-1, Toshima-ku, Tokyo 171-8501, Japan.
Journal of the American Chemical Society
|August 9, 2011
概括
新的光色染料具有高光度,可以通过紫外线激活,以便在光学内存和超分辨率成像中使用. 这些染料提供可调节的绿色和红色排放,具有出色的稳定性和长光寿命.
科学领域:
- 有机化学 有机化学
- 摄影化学的使用.
- 材料科学 材料科学 材料科学
背景情况:
- 可光切换的光染料对于先进的应用,如光学数据存储和超分辨率显微镜至关重要.
- 开发具有高光量子产量和高吸收系数的染料对于这些应用是必不可少的.
研究的目的:
- 为了合成和表征新型光色硫衍生物用于光激活光.
- 研究和硫替代物对这些染料光物理性质的影响.
主要方法:
- 1,2-bis(2-乙基-6-基(或基)-1-基基-3-基) 的硫衍生物的合成.
- 光物理特性包括光量子产量,吸收系数和光寿命测量.
- 评价光色切换行为和光照射下的稳定性.
主要成果:
- 替代衍生物具有高光量子产量 (>0.7) 和吸收系数 (>4 × 10(4) M(-1) cm(-1)),发出明亮的绿色光.
- 提奥芬替代衍生物显示红色光 (>620nm) 具有良好的量子产量 (0.61-0.78) 和非常缓慢的环开放率.
- 合成的染料表现出极好的光稳定性和长光寿命 (2-3 ns),性能优于现有的标准.
结论:
- 新型硫衍生物是具有可调节发射颜色 (绿色和红色) 的高光光色染料.
- 这些染料具有出色的光稳定性和长的光寿命,使它们成为光学内存和超分辨率成像的有希望的候选者.
- 替代模式显著影响光物理性质,使得针对特定应用的定制染料设计成为可能.
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