Acta Phys. -Chim. Sin. ›› 2014, Vol. 30 ›› Issue (1): 164-170.doi: 10.3866/PKU.WHXB201311051

• PHOTOCHEMISTRY AND RADIATION CHEMISTRY • Previous Articles     Next Articles

Synthesis, Characterization and Two-Photon Absorption Properties of Novel Blue Up-Converted Fluorescent Molecules

CAI Zhi-Bin, LIU Li-Fen, KONG Cheng, ZHU Yao-Xin   

  1. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
  • Received:2013-08-16 Revised:2013-11-04 Published:2014-01-01
  • Contact: CAI Zhi-Bin E-mail:caizbmail@126.com
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21103151) and Key Innovation Team of Science and Technology in Zhejiang Province, China (2010R50018).

Abstract:

Three new acceptor-donor-acceptor (A-D-A) up-converted fluorescent molecules were designed and synthesized. Their structures were characterized using Fourier transform infrared and hydrogen nuclear magnetic resonance spectroscopy, mass spectrometry, and elemental analysis. The linear absorption spectra, single-photon excited fluorescence spectra, and fluorescence quantum yields were measured in different solvents. The two-photon absorption and up-converted fluorescent properties were studied using a femtosecond laser. The results showed that the fluorescence quantum yields were 0.20-0.68, the two-photon absorption cross-sections were 16×10-50-101×10-50 cm4·s·photon-1, and they exhibited strong blue up-converted fluorescence.

Key words: A-D-A molecule, Synthesis, Two-photon absorption, Up-converted fluorescence

MSC2000: 

  • O644