蒽晶体中的单个二苯并苝分子：光谱学与光物理学
Single dibenzoterrylene molecules in an anthracene crystal: spectroscopy and photophysics.
作者信息
Nicolet Aurélien A L, Hofmann Clemens, Kol'chenko Mikhail A, Kozankiewicz Boleslaw, Orrit Michel
机构信息
MoNOS, Huygens Laboratory, Leiden University, 2300 RA Leiden, The Netherlands.
出版信息
Chemphyschem. 2007 Jun 4;8(8):1215-20. doi: 10.1002/cphc.200700091.
We study single dibenzoterrylene molecules in an anthracene single crystal at 1.4 K in two insertion sites at 785.1 and 794.3 nm. The single-molecule zero-phonon lines are narrow (about 30 MHz), intense (the detected fluorescence rates at saturation reach 100,000 counts s(-1)), and very photostable. The intersystem-crossing yield is extremely low (10(-7) or lower). All of these features are hallmarks of an excellent system for high-resolution spectroscopy and nanoscale probing at cryogenic temperatures.
我们在1.4 K温度下，于蒽单晶中785.1纳米和794.3纳米的两个插入位点研究单个二苯并苝分子。单分子零声子线很窄（约30兆赫兹）、强度高（饱和时检测到的荧光速率达到100,000计数每秒）且非常光稳定。系间窜越产率极低（10⁻⁷或更低）。所有这些特性都是在低温下进行高分辨率光谱学和纳米级探测的优秀系统的标志。
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