Ms. Yichi Zhang Profile

Yichi Zhang

at Heilongjiang Univ

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Proceedings Article | 24 January 2013 Paper

Preparation, one- and two-photon properties of carbazole derivatives containing nitrogen heterocyclic ring

Yichi Zhang, Ping Wang, Liang Li, Zhimin Chen, Chunying He, Yiqun Wu

Proceedings Volume 8782, 87820B (2013) https://doi.org/10.1117/12.2015015

KEYWORDS: Luminescence, Absorption, Nitrogen, 3D optical data storage, Quantum efficiency, Optical storage, Optical properties, Femtosecond phenomena, Water, Clouds

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Preparation of recording materials with high two-photon absorption activities is one of the important issues to superhigh- density two-photon absorption (TPA) three-dimensional (3D) optical data storage. In this paper, three new carbazole derivatives containing nitrogen heterocyclic ring with symmetric and asymmetric structures are prepared using ethylene as the π bridge between the carbazole unit and nitrogen heterocyclic ring, namely, 9-butyl-3-(2-(1,8- naphthyridin)vinyl)-carbazole (material 1), 9-butyl-3,6-bis(2-(1,8-naphthyl)vinyl)-carbazole (material 2) and 9-butyl-3,6- bis(2-(quinolin)vinyl)-carbazole (material 3). Their one photon properties including linear absorption spectra, fluorescence emission spectra, and fluorescence quantum yields are studied. The fluorescence excited by 120 fs pulse at 800 nm Ti: sapphire laser operating at 1 kHz repetition rate with different incident powers of 9-butyl-3-(2-(quinolin) vinyl)-carbazole (material 3) was investigated, and two-photon absorption cross-sections has been obtained. It is shown that material 3 containing quinoline rings as electron acceptor with symmetric structure exhibit high two-photon absorption activity. The result implies that material 3 (9-butyl-3-(2-(quinolin) vinyl)-carbazole) is a good candidate as a promising recording material for super-high-density two-photon absorption (TPA) three-dimensional (3D) optical data storage. The influence of chemical structure of the materials on the optical properties is discussed.

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