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Multi-carbazole derivatives for two-photon absorption data storage: Synthesis, optical properties and theoretical calculation |
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| Authors: | Lin Li JiaXiang Yang CaiXia Wang ZhangJun Hu YuPeng Tian Jing Li ChuanKui Wang Ming Li GuangHua Cheng HuoHong Tang WenHao Huang XuTang Tao MinHua Jiang |
| Institution: | 1. Department of Chemistry, Anhui University, Hefei, 230039, China 2. State Key Laboratory of Crystal Materials, Institute of Crystal Materials of Shandong University, Jinan, 250100, China 3. Department of Physics, Shandong Normal University, Jinan, 250014, China 4. State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, 710119, China 5. Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China |
| Abstract: | Two novel quadrupolar organic compounds, 3-(4-((E)-2-(9-butyl-9H-carbazol-6-yl) vinyl)styryl)-9-propyl-9H-carbazole (BCSPC) and 3-(3-(3-((1E)-2-(4-((E)-2-(3-(3,5-bis(9-butyl-9H-carbazol-6-yl)phenyl)-9-butyl-9H-carbazol-6-yl)vinyl)phenyl) vinyl)-9-butyl-9H-carbazol-6-yl)-5-(9-butyl-9H-carbazol-6-yl)phenyl)-9-butyl-9H-carbazole (BCPBC), with different conjugated arms, have been designed and synthesized. Their one- and two-photon absorption (TPA) and excited fluorescence properties have been experimentally investigated. The two-photon absorption cross-sections of two compounds were estimated by two-photon excited fluorescence technique using 200 fs, 76 MHz, Ti:sapphire laser, which are 22 and 154 GM for BCSPC and BCPBC, respectively. The optimal excitation wavelengths are 780 nm for both BCSPC and BCPBC. A data recording experiment proved the potential application of the materials. |
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