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Tailoring Fluorescence-Phosphorescence Emission with a Single Nanocavity.
Peng, Wei; Wang, Yao-Hui; He, Jiaxing; Yang, Jing-Liang; Wang, Jingyu; Radjenovic, Petar M; Lin, Jia-Sheng; Yang, Zhilin; Li, Ming-De; Zhang, Fan-Li; Zhang, Yue-Jiao; Yi, Jun; Li, Jian-Feng.
Afiliação
  • Peng W; State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Materials, College of Electronic Science and Engineering, College of Energy, College of Physical Science and Technology, Fujian Key Laboratory of Ultrafast Laser Technology
  • Wang YH; State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Materials, College of Electronic Science and Engineering, College of Energy, College of Physical Science and Technology, Fujian Key Laboratory of Ultrafast Laser Technology
  • He J; Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China.
  • Yang JL; College of Physics, Guizhou Province Key Laboratory for Photoelectrics Technology and Application, Guizhou University, Guiyang 550025, China.
  • Wang J; State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Materials, College of Electronic Science and Engineering, College of Energy, College of Physical Science and Technology, Fujian Key Laboratory of Ultrafast Laser Technology
  • Radjenovic PM; State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Materials, College of Electronic Science and Engineering, College of Energy, College of Physical Science and Technology, Fujian Key Laboratory of Ultrafast Laser Technology
  • Lin JS; State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Materials, College of Electronic Science and Engineering, College of Energy, College of Physical Science and Technology, Fujian Key Laboratory of Ultrafast Laser Technology
  • Yang Z; State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Materials, College of Electronic Science and Engineering, College of Energy, College of Physical Science and Technology, Fujian Key Laboratory of Ultrafast Laser Technology
  • Li MD; Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China.
  • Zhang FL; College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China.
  • Zhang YJ; State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Materials, College of Electronic Science and Engineering, College of Energy, College of Physical Science and Technology, Fujian Key Laboratory of Ultrafast Laser Technology
  • Yi J; State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Materials, College of Electronic Science and Engineering, College of Energy, College of Physical Science and Technology, Fujian Key Laboratory of Ultrafast Laser Technology
  • Li JF; State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Materials, College of Electronic Science and Engineering, College of Energy, College of Physical Science and Technology, Fujian Key Laboratory of Ultrafast Laser Technology
J Am Chem Soc ; 145(37): 20381-20388, 2023 Sep 20.
Article em En | MEDLINE | ID: mdl-37668654
ABSTRACT
Realizing the dual emission of fluorescence-phosphorescence in a single system is an extremely important topic in the fields of biological imaging, sensing, and information encryption. However, the phosphorescence process is usually in an inherently "dark state" at room temperature due to the involvement of spin-forbidden transition and the rapid non-radiative decay rate of the triplet state. In this work, we achieved luminescent harvesting of the dark phosphorescence processes by coupling singlet-triplet molecular emitters with a rationally designed plasmonic cavity. The achieved Purcell enhancement effect of over 1000-fold allows for overcoming the triplet forbidden transitions, enabling radiation enhancement with selectable emission wavelengths. Spectral results and theoretical simulations indicate that the fluorescence-phosphorescence peak position can be intelligently tailored in a broad range of wavelengths, from visible to near-infrared. Our study sheds new light on plasmonic tailoring of molecular emission behavior, which is crucial for advancing research on plasmon-tailored fluorescence-phosphorescence spectroscopy in optoelectronics and biomedicine.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article