云母片表面锌卟啉纳米岛的荧光增强效应

姜建伟; 陆一帆; 刘易婷; 楼柿涛; 张晓磊; 金庆原

doi:10.3969/j.issn.1000-5641.2016.04.012

云母片表面锌卟啉纳米岛的荧光增强效应

doi: 10.3969/j.issn.1000-5641.2016.04.012

1.
华东师范大学精密光谱科学与技术国家重点实验室,上海 200062

基金项目:

国家自然科学基金（11274113，11204081）;上海市自然科学基金（12ZR1443600）

详细信息

通讯作者:
张晓磊, 男, 副教授, 硕士生导师, 从事STM诱导发光研究. Email: xlzhang@admin.ecnu.edu.cn

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出版历程
- 收稿日期: 2015-06-12
- 刊出日期: 2016-07-25

Fluorescence enhancement of zinc tetraphenylporphyrin nano islands on mica surface

1.
State Key Laboratory of Precision Spectroscopy in Science and Technology, East China Normal University, Shanghai 200062, China

摘要

摘要: 利用真空热蒸发的方法，在云母片上制备分子层数可控的锌卟啉（ZnTPP）分子薄膜. 随着分子层数的增多，ZnTPP薄膜的光致荧光（Photoluminescence，PL）光谱从单体特征渐变为二聚体特征；原子力显微镜（Atomic Force Microscope, AFM）的图像中， ZnTPP分子团簇成纳米尺度的岛状结构，非真空环境导致纳米岛进一步聚集，从而使二聚体特征峰荧光强度激增；样品荧光寿命表明在非真空环境下分子的二聚体衰减通道比例显著增加.
- 锌卟啉（ZnTPP） /
- 荧光增强效应 /
- 荧光寿命
Abstract: Zinc tetraphenylporphyrin (ZnTPP) film on mica was prepared by vacuum thermal evaporation，and the thickness could be calibrated by single molecular layer. The photoluminescence (PL) spectra of ZnTPP film on mica gradually changed from the spectra of monomer to that of dimer as the number of molecule layers increasing. The atomic force microscopy (AFM) image showed that ZnTPP molecules on the mica surface were clustered into nanoislands. The nanoislands were further aggregated in nonvacuum environment, which might enhance the intensity of dimer fluorescence. Fluorescence lifetime showed that the decay channel ratio of dimer increased significantly in non vacuum environment.
- zinc tetraphenylporphyrin (ZnTPP) fluorescence enhancement fluorescence lifetime /

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参考文献(1)

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